Suburban transmission problems

Suburban transmission problems DEFAULT

If your Chevy Suburban&#;s transmission has been slipping, it is a very serious problem.  It&#;ll get worse in a relatively short period of time, leaving the vehicle inoperable.  You&#;ll want to find out what is wrong, and have it repaired quickly, before any further lasting damage can occur.  We&#;ve lined out some of the most common reasons that your Suburban&#;s transmission could slip. 

Transmission Slipping Chevy Suburban

Transmission Slipping Signs:  Chevy Suburban

A slipping transmission is pretty easy to recognize.  Here are the most common symptoms that one has started to slip:

 

  • Higher RPM Than Usual&#; When the transmission slips, it is not transferring all the energy from your Suburban&#;s engine to the rear wheels.  When this happens, the tachometer jumps up as the RPM increases.
  • Smell&#; As the clutches and bands inside the transmission slip, they create a lot of friction.  This friction gets them hot and you may notice an egg-like smell.
  • Vehicle Won&#;t Move&#; Eventually the transmission may not be able to move the vehicle at all.  If this is the case, the first thing to check would be the transmission fluid
  • Decreased Fuel Mileage&#; Since the transmission will no longer be able to efficiently transfer power to the rear wheels, fuel mileage will suffer as the transmission slips.

 

Chevy Suburban Transmission Slipping Fix

 

Transmission Slipping Causes:  Chevy Suburban

We have listed some of the most common reasons why your Chevy Suburban&#;s transmission would slip below.  When trying to figure out why it&#;s slipping, it&#;s wise to start by looking at the transmission fluid.  Even if you know it&#;s full, you can use the color chart linked to below to determine if something is going on in the transmission itself.

 

1. Low Fluid

Low or no transmission fluid is one of the most common reasons that a transmission will slip.  Transmission fluid lasts so much longer than oil that, often people don&#;t look at it at all. 

Once it gets critically low, the transmission will begin slipping, as there is no longer any way for it to move the engine&#;s power to the rear wheels.  During this stage, extreme damage is being done to your Suburban&#;s transmission as it slips.  You need to fill the fluid back up to the proper level right away.

 

2. Bad or Burnt Fluid

Transmission fluid can deal with a lot of abuse.  That being said, it can go bad and will no longer be able to do its job.  Check it and look at the color.  Most manufacturers use red fluid.  This transmission fluid color chart will help you determine if the fluid is bad.  Black fluid is an obvious sign that the fluid has been burnt.

 

3. Wrong Fluid

If you&#;ve recently serviced (or had serviced) your transmission, double check that the right fluid was put in.  If it wasn&#;t, you&#;ll need to flush it and start over.

 

4. Transmission Bands

An automatic transmission uses bands to link its gears together.  When these bands go bad the transmission will begin to slip.  Sometimes they can be adjusted.  Most of the time they&#;ll just need replaced.

 

5. Gears

Over time, the gears in a transmission can just wear out.  When this happens, shifts will get rougher.

 

6. Solenoid(s)

Your Suburban&#;s transmission uses solenoids to control the amount of pressure going through the transmission.  This affects shift firmness, whether it even shifts at all, and can make the transmission slip without enough pressure.

 

7. Torque Converter

If you feel like the transmission is only slipping a few hundred RPM on the highway, it may not be the transmission slipping at all.  It could be the torque converter.  

Modern torque converters use locking clutches to create a true connection between the engine and the transmission.  This helps fuel mileage.  When they don&#;t lock, the engine RPM will be higher on the highway.  Torque converters don&#;t typically lock until they are in overdrive or drive, or your Suburban reaches a certain speed.

Chevy Suburban Transmission Slipping Symptoms

 

Suburban&#;s Transmission Slipping When Accelerating

Slipping when accelerating is the most common way that a transmission will slip.  This is due it being the most demanding thing on the internal components.  Initially it&#;ll only slip under the heaviest of acceleration, but it will quickly get worse until the vehicle is un-drivable.  

 

Chevy Suburban Transmission Slipping Fix

Transmission repair is the most complex and difficult repair for even the most experienced shade tree mechanic.  

 

1. Check the Fluid Level and Health

It&#;s important to start with the easiest to repair and most likely to be causing your Suburban&#;s transmission to slip.  In this case that means making sure that the transmission fluid level is up to where it needs to be, as well as making sure that the fluid is healthy.

 

2. Check For Trouble Codes

There are many transmission related trouble codes that can tell you exactly what is wrong with the transmission.  After that you just throw the code(s) back into google and see what is causing them. 

 

3. Attempt the Repair, or Take it into a Shop

There are some things on an automatic transmission that you can fix yourself.  Some sensors are pretty easy to get to.  Say for instance, it&#;s clutch pressure sensor that has gone bad, that&#;s something you can often fix.  On the other hand, if you are replacing clutches or a valve body, you&#;re going to be pulling the transmission and getting into some very difficult stuff.

Every article on this site is written from the perspective that you will be trying to repair your vehicle yourself, we will make an exception for this and recommend taking it into a shop, or just buying a rebuilt transmission before trying to rebuild it yourself.

 

Conclusion:  Suburban Transmission Slipping

Good luck figuring out what is causing Chevy Suburban&#;s transmission to slip.  If there is anything that you would like to add, please feel free to leave a comment below.  Thank you.

Categories Chevy SuburbanSours: https://wwwr4transmissionhq.com/chevy-suburban-transmission-slipping/

Common Chevrolet Suburban Problems and The California Lemon Law

Engine Problems

If your Check Engine Light is on, don’t ignore it. Your Chevrolet Suburban may have serious engine problems.

According to complaints submitted to the National Highway Traffic Safety Administration, Chevrolet Suburban vehicles can suffer engine problems such as rough idling, vibration, engine knocking, excessive oil consumption, engine stalling and engines dying while driving. If your Chevy Suburban has any one of these problems, get your engine checked out.

Brake Problems

Faulty brakes can make your vehicle hard to control. Get your brakes repaired before it’s too late.

If your “service brake assist” warning illuminates on your dashboard, you may have brake problems that shouldn’t be overlooked. Complaints submitted to NHTSA reveal that Chevrolet Suburban vehicles’ brakes can make grinding noises, have difficult stopping the vehicle, and stop working altogether.

If you have recurring brake problems that won’t go away, your Chevrolet Suburban may be a lemon.

Seatbelts and Airbag Problems

If your Airbag Warning Light illuminates on your dashboard, you may need to check on your safety systems.

Chevrolet Suburban drivers have reported multiple cracks in the dashboard near the airbag, which may point to other vehicle defects. Not only that, complaints to NHTSA report safety system problems, such as malfunctioning seat belts and airbags that failed to deploy during crashes. If your airbags or seatbelt do not work as intended, you are at an increased risk of injury during a collision.

If your Chevrolet Suburban has recurring problems that will not go away, contact a lemon law attorney to discuss your legal options.

Contact a California Lemon Law Attorney

If problems persist in your Chevrolet Suburban despite multiple repair attempts, your vehicle may be a lemon.

Owners and lessees of “lemons” or defective vehicles are entitled to cash compensation, a vehicle replacement or a lemon law buyback. Knight Law Group has helped thousands of lemon owners and lessees obtain these rewards under the California lemon law with a success rate in excess of 99%.

Don’t go through the lemon law process alone. Our experienced lemon law attorneys can provide legal representation at no up-front cost to you. If you want to learn more about the California lemon law or have specific questions about your case, fill out our contact form or call us for a free consultation at .

Sours: https://knightlawgroup.com/common-chevrolet-suburban-problems-california-lemon-law/
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Transmission Services for Chevrolet Suburban

What Does Your Chevrolet Suburban Transmission Do?

The transmission delivers power from the motor to your wheels so that you can drive at your desired speed. Because your transmission is responsible for converting the right amount of power into the right amount of speed, even the smallest transmission problems should be addressed right away. They're often easy to notice. Chevrolet Suburban transmission problems could include shifting delays, grinding when accelerating, the car shaking at any speed, or whistling noises and a burning smell coming from under the hood. Let Chevrolet Suburban transmission problems linger and you might notice your fuel economy decrease or discover that your Suburban’s not even driveable.

Chevrolet Transmission Recommendations for Suburbans

According to Chevrolet, your Suburban’s transmission should be checked regularly for wear and tear. First off, Chevrolet recommends exchanging transmission and differential fluids in Chevrolet Suburbans at certain intervals with Chevrolet-approved transmission fluid. Our technicians are trained to service  Chevrolet Suburban transmission systems according to vehicle manufacturer recommendations. If you think there’s something wrong with your Suburban’s transmission, schedule an appointment at your local Firestone Complete Auto Care to help diagnose, treat, and prevent major transmission issues.

Chevrolet Suburban Transmission Service Cost

We do our best to keep Chevrolet Suburban transmission repairs and services affordable. Stop by your nearest Firestone Complete Auto Care and we'll start your visit with a free Courtesy Check. We’ll check out your Suburban’s major systems and components to help inform your car service decisions. Whether your vehicle needs a fluid exchange or preventative maintenance, you can rely on our Triple Promise to deliver a car that’s Fixed Right. Priced Right. Right on Time.

Chevrolet Suburban Questions & Answers

  • Is it bad to ride the brakes in your Chevrolet? Riding the brakes or keeping your foot on the brake pedal (even lightly) can lead to transmission issues. Pay attention to how often you apply your brake and use engine braking when possible.

  • How much can my Chevrolet tow? Think twice before offering to tow something for a friend, no matter how light the load might seem. The added load can mess with your transmission system if it exceeds your Suburban’s towing capacity. Always consult your owner's manual before towing or hauling something.

  • How often does my Suburban transmission fluid need to be checked? Maintaining your Chevrolet Suburban transmission fluid is one of the best ways to maintain your transmission's health. Some technicians would say that between 30, and 60, miles is a good timeframe for having your Chevrolet's transmission fluid checked and replaced, but that timeline can vary depending on how your vehicle is used and your manufacturer’s recommendations. Leaks or low transmission fluid are easy to spot and affordable to repair.

Sours: https://vehicle.firestonecompleteautocare.com/chevrolet/suburban//maintenance/transmission/
Common Problems Yukon, Tahoe, Suburban and how to fix them 2015-2020

Having been in continuous production since , the Chevrolet Suburban is one of America&#;s longest running nameplates. It&#;s also one of America&#;s biggest vehicles, with a huge capacity for both people and cargo. A ‘Burban can also tow quite a bit, and it can venture well off the beaten path if it&#;s equipped with 4WD. But you may not be venturing anywhere if Chevy Suburban transmission problem strike. So let’s figure out what you can do about them.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.


What Transmission Do I Have?

Chevy Suburban Transmission Models

Chevy Suburban: 4L60E Transmission (Early Models)
Chevy Suburban: 4L80E Transmission (HD / only)
Chevy Suburban: 6L80 / 6L90 Transmission (Later Models)
Chevy Suburban: 8L90 Transmission (Later Models)

Chevy Suburban Transmission Replacement Cost Estimate

Pricing varies by model (C / K / R10 / R). To be % sure on pricing, have your VIN# handy and use our Get An Estimate feature to look up your transmission by VIN#.

Replacement Suburban Transmission Prices:

What are the DTC codes related to Chevy Suburban transmission problems?

Trouble CodeDescription
PTransmission Range Sensor Circuit Range/Performance
PTransmission Fluid Temperature Sensor Circuit Range/Performance
PTransmission Fluid Temperature Sensor Circuit Low Input
PTransmission Fluid Temperature Sensor Circuit High Input
PTransmission Fluid Temperature Sensor Circuit Intermittent P
PInput/Turbine Speed Sensor Circuit
PInput/Turbine Speed Sensor Circuit Range/Performance 
PInput/Turbine Speed Sensor Circuit No Signal
PInput/Turbine Speed Sensor Circuit Intermittent
PTorque Converter/Brake Switch B Circuit Low
POutput Speed Sensor Circuit
POutput Speed Sensor Circuit Range/Performance
POutput Speed Sensor Circuit No Signal
POutput Speed Sensor Circuit Intermittent
P Torque Converter/Brake Switch B Circuit High
PTorque Converter Clutch Circuit Malfunction
PTorque Converter Clutch Circuit
PTorque Converter Clutch Circuit Stuck On
PPressure Control Solenoid 'A' Performance or Stuck Off
PPressure Control Solenoid 'A' Stuck On
PPressure Control Solenoid 'A' Electrical
PShift Solenoid 'A' Performance or Stuck Off
PShift Solenoid 'A' Stuck On
PShift Solenoid 'A' Electrical
PShift Solenoid 'B' Performance or Stuck Off
PShift Solenoid 'B' Stuck On
PShift Solenoid 'B' Electrical
PPressure Control Solenoid 'B' Performance or Stuck Off
PPressure Control Solenoid 'B' Stuck On
PShift/Timing Solenoid
PPressure Control Solenoid 'C' Performance or Stuck off
PPressure Control Solenoid 'C' Stuck On
PUp and Down Shift Switch Circuit
PPark/Neutral Switch Input Circuit Low
PTransmission Component Slipping
PPressure Control Solenoid “A” Control Circuit/Open
PPressure Control Solenoid “A” Control Circuit Low
PPressure Control Solenoid “A” Control Circuit High
PPressure Control Solenoid “B” Control Circuit/Open
PPressure Control Solenoid “B” Control Circuit Range/Performance
PPressure Control Solenoid “B” Control Circuit Low
PPressure Control Solenoid “B” Control Circuit High
PPressure Control Solenoid “C” Control Circuit Low
PTCC PWM Solenoid Circuit Electrical
PTransmission Component Slipping: GM Transmission
PPressure Control Solenoid ‘D’ Stuck On
PPressure Control Solenoid ‘E’ Stuck Off

Chevy Suburban Transmission Recalls

Recall 14V &#; Transmission cooler line leak &#; 6L80 Transmission
Chevrolet Silverado Light Duty Regular Cab, Double Cab, and Crew Cab
Chevrolet Suburban
Chevrolet Tahoe
GMC Sierra Regular Cab, Double Cab, and Crew Cab Chevrolet Yukon
Chevrolet Yukon XL

Summary &#;
In March , General Motors recalled certain Chevrolet Silverado Light Duty Regular Cab, Double Cab, and Crew Cab series and model year Suburban and Tahoe; GMC model year Sierra Regular Cab, Double Cab, and Crew Cab Series and model year Yukon and Yukon XL vehicles equipped with a 6L80 6-Speed Automatic Transmission. The recalled trucks may have a transmission oil cooler line that is not securely seated in the fitting.

Consequence &#;
If the line is not securely seated and transmission oil leaks from the fitting, the oil could contact a hot surface and cause a vehicle fire.

Remedy &#;
Dealers were instructed to inspect the transmission oil cooler line connection and repair the vehicles, as needed, free of charge. Owners may contact Chevrolet at (refer to the Chevrolet Silverado recall ) or the National Highway Traffic Safety Administration at (refer to recall 14V).

Chevy Suburban Technical Service Bulletins (TSB)

TSB PIPC &#; Harsh Shifting &#; Chevrolet Suburban 4L60E
Problem &#; Unusually harsh gear changes, combined with a P DTC for an input shaft speed sensor error, are often caused by damage to the ISS sensor wiring.
Solution &#; If wire damage is found (usually to the white wire), the wiring and sensor will have to be replaced. The pump cover should also be examined for sharp points/edges that could damage the wiring. If any are found, they should be smoothed with a file.

TSB C &#; Transmission stuck in third gear with inoperable instrument cluster and multiple DTC&#;s &#; 4L60E Transmission & 4L65 Transmission
– Cadillac Escalade &#; – Cadillac Escalade EXT &#; Cadillac Escalade ESV &#; – Chevrolet Silverado &#; – Chevrolet Suburban &#; – Chevrolet Tahoe &#; – Chevrolet Blazer &#; – Chevrolet Express &#; – Chevrolet S10 &#; – Chevrolet Avalanche &#; – Chevrolet Trailblazer &#; – Chevrolet Trailblazer EXT &#; – GMC Sierra &#; – GMC Suburban &#; – GMC Yukon XL &#; – GMC Yukon &#; – GMC Jimmy &#; – GMC Savanna &#; – GMC Sonoma &#; – GMC Envoy &#; – GMC Envoy XL &#; – Oldsmobile Bravada
Problem &#; Vehicles equipped with the 4L60E and 4L65E transmission may become stuck in third gear, the instrument cluster may not function, and the following DTC&#;s may be set: P, P, P, P and P
Solution &#; The most likely cause of this transmission problem is a blown fuse or an open on circuit between the fuse panel and the transmission. If no battery voltage is found at the fuse, the ignition switch will need to be replaced

TSB B &#; Harsh upshift with P DTC &#; 4L60E Transmission RPO M30
Buick Roadmaster &#; Cadillac Fleetwood &#; Cadillac Escalade &#; Chevrolet Camaro &#; Corvette &#; Pontiac Firebird &#; Chevrolet and GMC Light Duty Truck Models &#; Oldsmobile Bravada
Problem &#; Drivers may experience an unusually harsh shift because the ECU has commanded maximum line pressure in order to compensate for excessive wear in the bore that contains the TCC isolator and regulator valves inside of the valve body.
Solution &#; Replace the 4L60E valve body with revised TCC regulator and isolator valves.

PIP &#; Squawking noise on the shift &#; Chevrolet Suburban 4L60E
Problem &#; An unusual squawking or groaning noise may be heard on the upshift from 2nd to 3rd gear.
Solution &#; The friction and steel plates, clutch plate, apply plate, and selective backing plates will have to be replaced.

TSB &#; No movements when transmission is shifted into Drive or third &#; 4L60E Transmission &#; 4L65E Transmission &#; 4L70E Transmission
GM Passenger Cars and Light Duty Trucks: Buick Rainier &#; Cadillac Escalade, Escalade ESV & Escalade EXT &#; Chevrolet SSR &#; Chevrolet Avalanche &#; Chevrolet Colorado &#; Chevrolet Express &#; Chevrolet Silverado Classic &#; Chevrolet Silverado &#; Chevrolet Suburban &#; Chevrolet Tahoe &#; Chevrolet TrailBlazer &#; GMC Yukon Denali &#; GMC Yukon Denali XL &#; GMC Canyon &#; GMC Envoy &#; GMC Savana &#; GMC Sierra Classic &#; GMC Sierra &#; GMC Yukon &#; GMC Yukon XL &#; Pontiac GTO &#; HUMMER H2 &#; HUMMER H3 &#; Saab X &#; with the 4L60, 4L60E, 4L65E or 4L70E Automatic Transmission (RPOs MD8, M30, M32, M33 or M70)
Problem &#; It is possible to experience no movement when the transmission is shifted into Drive or the 3rd gear position. It is possible to experience normal operation when the transmission shifted into second, first or reverse.
Solution &#; Replace the forward sprag assembly

TSB D &#; No reverse, second or fourth gears &#; 4L60E Transmission & 4L65E Transmission
– GM passenger cars and light duty trucks
Problem &#; Drivers may experience the loss of reverse, second and fourth gears. First and third gears will seem to function normally
Solution &#; The reaction sun gear may fail inside of the sun shell. It will need to be replaced with a stronger heat-treated 4L60E / 4L65 sun gear.

TSB &#; Chevrolet Suburban 4L80E
Problem: Harsh or delayed shifts, slipping, no forward/reverse gears. Possible DTCs: P, P, P, P, P, P, P
Solution: Rebuild or replace the valve body.

TSB &#; Chevrolet Suburban 4L80E
Problem: Harsh shifts, delayed shifts, shift flare, no 3rd gear, slips in 3rd gear or reverse. Possible DTC
Solution: If none of the issues described in Bulletin are present (debris in #11 checkball, leak in oil circuit, damage to the direct clutch), then replace the shift solenoid due to a possible sticking pintle.

TSB PIC &#; No forward or reverse and/or slipping &#; 6L80 Transmission | 6L90 Transmission
– Cadillac CTS-V &#; – Cadillac Escalade (all models) &#; – Chevrolet Avalanche &#; – Chevrolet Camaro &#; – Chevrolet Corvette &#; – Chevrolet Express &#; – Chevrolet Silverado &#; – Chevrolet Suburban &#; – Chevrolet Tahoe &#; – Chevrolet Caprice PPV &#; Chevrolet SS &#; – GMC Savanna &#; – GMC Sierra &#; – GMC Yukon &#; – GMC Yukon XL &#; – GMC Yukon Denali

Problem &#; Trucks equipped with the 6-speed 6L80 or 6L90 transmission may experience no forward or reverse engagement, or slipping between the gears.

Solution &#; This problem could be caused by a cracked or split transmission filter. If this is the case, the transmission pump should be disassembled and inspected for possible damage. Inspect for any of the following conditions: – scored pump rotor or pump vanes – scored pump cover or pump rotor pocket – cracked pump slide.

The transmission should also be evaluated for any possible distress to the clutches. GM’s testing and analysis found that split or damaged filters may be caused by a damaged transmission pump. This can send a high pressure fluid spike down the filter neck on a cold start, resulting in the filter body cracking or the filter seam splitting. The filter is not defective and this is not a filter quality issue. Important: Do not replace the filter without inspecting the pump. Failure to inspect the pump and clutches could lead to a repeat of this condition.

TSB J &#; Slips in Reverse or Third, Delayed Reverse or Drive Engagement, DTC P, P, P, Harsh Shifts &#; 6L80 Transmission | 6L90 Transmission
Cadillac STS-V &#; Cadillac XLR &#; Cadillac XLR-V &#; Cadillac Escalade, Escalade ESV, Escalade EXT &#; Chevrolet Corvette &#; Chevrolet Silverado &#; Chevrolet Suburban &#; GMC Sierra &#; GMC Sierra Denali &#; GMC Yukon Denali &#; GMC Yukon XL Denali &#; GMC Yukon XL &#; HUMMER H2 &#; Pontiac G8
Problem &#; Vehicles equipped with the 6L80 or 6L90 transmission may slip when Reverse is selected or have no/delayed reverse engagement, harsh shifts from / or slips while in fifth, and slipping acceleration when passing. Possible DTCs include P, P or P
Solution &#; This transmission problem may be caused by a cracked / R clutch housing.

TSB NA &#; Delayed engagement after sitting with the engine off
Problem &#; Drivers may experience a pronounced delay in forward or reverse gear engagement after shifting from Park. This condition typically occurs when the vehicle has been sitting for several hours with the engine off (like overnight).
Solution &#; In order to correct this common 8L90 transmission problem, a new stator shaft support assembly will have to be installed.

PIPA &#; Harsh shifts
Problem &#; One of the more common 8L90 transmission problems is excessively hard or abrupt gear changes.
Solution &#; The TCM may need to be recalibrated with the latest control software. It could also be caused by one or more of the clutch fill times not being learned by the TCM. In which case, the Service Fast Learn (SFL) procedure will have to be performed.

TSB &#; NA &#; Erratic shifting behavior
Problem &#; Drivers may experience harsh shifts, delayed shifts, unexpected downshift, stuck in a gear and/or hesitation to shift. The following DTC codes may also be set: P, P, P, P, P
Solution &#; These problems may be caused by a programming error in the TCM, which will require a software update.

Common Chevy Suburban Transmission Problems

Intermittent harsh shifting &#; Chevrolet Suburban 4L60E
Problem &#; A common 4L60E transmission problem is an intermittent hard shift, often accompanied by engine bogging. This condition can be caused by the torque convertor clutch applying during the shift.
Solution &#; To remedy the problem, the wiring harness needs to be inspected from the transmission case connector to the rear of the engine on the driver side. It&#;s possible that the wires for the TCC solenoid and pressure control solenoid have become frayed on a body seam. If this is the case, the wiring will need to be repaired, and the harness repositioned.

Solenoid DTC’s &#; Chevrolet Suburban 6L90
Problem &#; A number of diagnostic trouble codes, including P, P, P and P, can be caused by a pressure leak at the end of the clutch regulating valve.
Solution &#; The bore plug will have to be replaced with updated versions, or modified to accept an O-ring kit.

Lack of Response
Leaking Fluid
Low Fluid
Burning Smell
Grinding or Shaking
Whining, Clunking or Humming
Refuses to Go Into Gear
Torque Converter Issues
Valve Body Issues
Transmission Noisy in Neutral
Gears Slipping
No 3rd or 4th Gear
No 1st or 2nd Gear
No Reverse
Dragging Clutch
Trouble Codes / Check Engine Light

Can I drive with a transmission problem?

Although it may feel like you could keep driving, Chevrolet Suburban transmission problems can easily sneak up and destroy your day. You see, transmission parts have to endure extreme heat and friction, and these conditions can quickly deteriorate if everything isn&#;t working correctly. These elevated transmission fluid temperatures can severely damage other parts like seals and clutch material. So do the wise thing and have an experienced mechanic look at the problem immediately.

How often does a Chevy Suburban transmission need to be replaced?

Obviously, the better you take care of something, the longer you’ll have it. This is especially true when it comes to transmissions, and a Chevrolet Suburban transmission is no different. When properly maintained and driven respectfully, a Suburban transmission can last anywhere from ,, miles. A remanufactured Chevy transmission on the other hand, can last considerably longer.

How are Chevy Suburban transmission issues diagnosed?

To figure out what is causing your Chevrolet Suburban transmission problems, a mechanic will connect an OBDII scan tool to the truck and download the diagnostic trouble codes. A visual inspection will be needed to confirm the diagnosis, especially if there are no relevant DTC’s stored in the ECU.

How is a Chevy Suburban transmission replaced?

In order to replace your Chevy Suburban transmission, the truck has to be lifted from the ground in order to gain access to all of the parts that will need to be unbolted. Then the transmission can be lowered to the ground (typically with a transmission jack), so the new transmission can be installed. Once it is in place, for the 6L80, the vehicle PCM will have to be reprogrammed / reflashed to accept the new transmission using the latest GM subscription.

Recommendations for Chevy Suburban transmission issues?

To save time and get back on the road faster, have your digit truck VIN# handy and you can get an online quote for a reman Chevy Suburban transmission here, then find a local shop using our Find a Shop guide to install it for you.

How to Solve Chevy Suburban Transmission Problems

Solution A: Buy a Used Chevy Suburban Transmission

One of the most popular solutions for severe Chevrolet Suburban transmission problems is buying a used 4L60E / used 4L80E / used 6L80E / used 6L90 / used 8L90 transmission from the local junkyard. They are easy to find, and most come with a replacement warranty (they will swap out the transmission if it does not work right). But the problem is, you don&#;t know what the condition of the internal components actually are. So you could wind up with the same, or even worse problems than you have now. And that replacement warranty probably does not cover labor charges.

Solution B: Buy a Rebuilt Chevy Suburban Transmission

A rebuilt 4L60E / rebuilt 4L80E / rebuilt 6L80E / rebuilt 6L90 / rebuilt 8L90 transmission is certainly a better option. But you better hope that the mechanic building it, knows what they&#;re doing. And most rebuilt transmission warrantees are only honored at the shop that built it. So you&#;ll be without warranty coverage if you travel.

Solution C: Buy a Remanufactured Chevy Suburban Transmission

To get a more permanent solution to your Chevrolet Suburban transmission problems, you may want to consider investing in a remanufactured 4L60E / remanufactured 4L80E / remanufactured 6L80E / remanufactured 6L90 / remanufactured 8L90 transmission. These are often built in a factory, using the much higher quality components. The better ones are also modified to correct for factory design flaws, and dyno tested to ensure proper operation and tuning. Plus, you may be able to get a much better warranty too.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.


What Transmission Do I Have?

What Problem Does Your Chevy Suburban Have?

Let us know the year, mileage and problem you’re having as well as any trouble (OBD) codes you&#;ve found. If you’ve been given a quote or paid for a repair, we’d like to hear about that too!

Sours: https://www.transmissionrepaircostguide.com/chevy-suburban-transmission-problems/

Transmission problems suburban

Chevrolet Suburban Transmission Problems 6L80, 6L90, 6L95
Dave Riccio, Owner/Technician

By Dave Riccio, ASE Certified Technician, Owner of Tri-City Transmission & Auto Repair, Co-host of Bumper to Bumper Radio

CASE STUDY: Chevrolet, Suburban, , transmission problems

Customer Saves $4, on Suburban 6L80 Transmission

6L80, 6L90, 6L95

The customer owned a Chevrolet Suburban , 4wd with , miles. They were experiencing what they described as “chattering sensations” or hiccups during cruising speeds. These transmission problems were getting progressively more significant over the course of months, and eventually, the customer was concerned, that the vehicle would not move at all. This customer took the Suburban in to their regular automotive, general repair specialist.

After looking at the vehicle, that general repair shop contacted Tri-City Transmission and Auto Repair asking for a price on a whole transmission. They said, "the transmission is smoked, how much."

We instructed that shop that it's rare to see the Chevy Suburban transmission fail like they described, and we would recommend a transmission specialist properly diagnose it. We felt, based off the described symptoms, more than likely they were not describing a failed transmission but a torque converter lockup issue.

The next phone call we got was from the actual customer who got our name from a friend of theirs. The customer indicated that they were quoted more than $6, to replace their transmission from that same automotive generalist that called us.

We indicated it was an unreasonable price for that transmission and they probably did not need a transmission anyway. The customer decided to come down to visit us. We gave him a tour of our shop and repair process. From there, one or our technicians road tested the vehicle with the customer to verify the symptoms, and they left the vehicle for our Level 1 Diagnostic process.

A handful of hours later, we called the customer with the good news; all they needed was a torque converter clutch, and it was $4, less than their original quote from their automotive generalist.

This type of transaction is a regular occurrence at Tri-City Transmission and Auto Repair. This is especially true when it comes to the Chevy Suburban transmission. It is a great transmission, and internal or total transmission failure is rarely the case.
However, most automotive generalists don't understand transmissions. All they generally know how to do is replace the transmission. Unfortunately, they don't know what they don't know so they honestly pass out bad advice, well-intended though, it may be.

At Tri-City Transmission & Auto Repair, we have performed this repair on this model of transmission dozens and dozens of times.

View the embedded image gallery online at:
https://tricitytransmission.com/chevysuburbantransmissionproblems#sigProIdab


Transmission Background Information:

This Chevy Suburban transmission replaced its predecessors, 4L60E and 4L80E. It utilizes the transmission control module inside the transmission. Hardly does the transmission itself fail. We regularly handle transmission control issues and rarely transmission failure issues.

GM did a good job designing this transmission. It is in our estimation that in 70% of the time this transmission is replaced, it was replaced in error or could have been fixed for a lot less money.

This is especially true at a dealership as they do not generally repair transmissions in-house; they got out of that business years ago, and they don't necessarily know how, so they don't. Although, sometimes they will give you the impression they can. The model transmission is found in Suburban’s, Tahoe’s, GMC and Chevrolet Silverado Trucks, as well as G series vans.


Other 6L80, 6L90, 6L95 Related Case Studies


Chevrolet Suburban Transmission Problems 6L80, 6L90, 6L95

Sours: https://tricitytransmission.com/chevysuburbantransmissionproblems
Investigation into GM transmission issues continues - WSOC

Transmission Failure Problems of Chevrolet Suburban - part 1

1 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 04/25/

My Suburban has miles on it and the transmission failed. It is going to cost $ to repair. It is just over the powertrain warranty so this will be out of our pocket. Suburbans have known transmission issues. We believe a $60, vehicle should last longer than 6 years and , miles.

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2 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 12/20/

Vehicle has had brake and transmission issues for 2 years now, culminating in complete transmission failure on 12/20/

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3 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 10/26/

I have had 2 Suburban in the last 5 years and the transmission failed right around k miles on both. They have a serious issue with it but have managed to get away with it as there has been no class action against it. My Suburban broke down around 96k miles and my Suburban at k. I'm sure if this is further researched then 90% of the these models must have reported the same problem around k. I'm looking forward to sue gm over this, as after spending over us$ 00 on making payments on 2 cars and don't have a car that I can trust for long trips, as it always happened when I was with my family on a long trip and had to spend thousands in making alternative arrangements to get home safely. Before my last trip, I sent my Suburban at the dealership for a k miles service at miles where I was in warranty where they checked and said everything looks fine for the trip and did a basic oil change with inspection but after a week of touring the transmission boke down at around miles. Where I had to shell out $ in total as the car went out of warranty in a week time. The break down is $ for repairs, $ for shipping the car, $ in car rental and hotel, $ broken windshield in transit. Both of my cars have always been to dealership for the service and periodic maintenance but its their defected transmission that would never hold up. I'm looking for people who would want to make a class action lawsuit against this and bring justice to all owners. I have the VIN for both of my Suburban where one was bought used with only 8k miles on it with extended warranty and the other was brand new.

4 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 07/30/

Transmission failure< , miles!! well maintained. Left us stranded on off ramp I !!! cracked dash electrical problem. Check engine light.

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5 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 11/26/

I bought a brand new Suburban. In April of , it had a brand new gm transmission installed. Now, in November of , my mechanic says it has to have another new transmission. I own 4 different gm SUV's, 2 yukons and 2 Suburbans. One yukon is , one Suburban and one yukon are , and one Suburban is Each different gm vehicle has had to have at least one new transmission almost each year. . . And each new transmission fails after about k miles. . Slightly out of the reach of my warranty. This should not happen, and gm will not do anything about it.

6 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 10/14/

Vehicle lost power due to transmission failure at 66, miles.

7 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 01/18/

While traveling on the interstate miles from home, the transmission catastrophically failed. Within 25 miles of the check engine light coming on, the vehicle would not move. Totally stranded in place in middle of highway. Needed to be towed to local dealership. Was diagnosed as failure of clutch plates in the transmission. This Suburban only had 90, miles on it. Dealer charged $4, to repair transmission. Gm customer assistance would provide no cost share.

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8 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 12/15/

Tl the contact owns a Chevrolet Suburban. The contact stated that the transmission gears failed to properly shift into any gear without warning. The contact was uncertain if the warranty would apply to service the vehicle. Herman jenkins motors inc ( w reelfoot Ave, union city, TN , () ) and rock-royal oaks Chevrolet Cadillac ( park Ave, paducah, ky , () ) were notified. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 20,

9 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 10/18/

The contact owns a Chevrolet Suburban The contact stated that while driving 45 mph, the transmission failed. The vehicle was towed to a transmission specialist for inspection where they stated that the transmission needed to be repaired. The vehicle was repaired but the failure recurred. The manufacturer was notified and stated that the failure was not a common problem and that they could provide no assistance. The failure mileage was ,

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10 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 03/01/

chevorlet Suburban - transmission failed at 45, miles. Since it wasn't under warranty any longer, purchased a new transmission from gm with a 3 yr , mile warranty. After 3yrs, 4months, the vehcle now has 91, miles and the transmission has failed again. Each time the cost is over $

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11 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 10/11/

Transmission failure. As I began accelerating from a stop, in order to make a left turn across opposing traffic lanes, I had a complete failure of forward momentum. The vehicle behind me narrowly missed a rear end accident and opposing traffic was forced to quickly stop as I was left blocking their traffic lane. Vehicle still under warranty with 25, miles. Dealer repaired transmission and identified "sprag gear found damaged . . . Clutches also burnt replaced as needed. . . ". Possible tsbs

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13 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 10/11/

I have a chevy Suburban and this is the 5th. Transmission I have put in the vehicle. The transmission first failed at 15, miles and was repaired under warranty. At 50, miles it failed again and cost me $ 94 to fix. At 62, it failed again and a Chevrolet dealer in oklahoma repaired it,for $ 24, and gave it a one year warranty. 11 months and miles later it failed again. This time the chevy dealer in missouri wants $ to repair it and said the same exact parts did not fail so the one year warranty does not apply!!!!!!!! this vehicle is driven by my wife around town. All of a sudden you loose power.

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14 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 08/24/

My Chevrolet Suburban experienced premature transmission failure. The total cost for the repair is $ The truck has never towed a thing, the car is only used to drive children to school etc. It has 64, miles and just stopped on a turn in the middle of an intersection.

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15 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 01/26/

Transmission failures in through Chevrolet tahoe's, Suburbans, and k trucks. I have owned several Chevrolet vehicles. In my small circle of acquaintances, I have experienced what I believe to be too many transmission failures by the afore mentioned vehicles. My brother in law just had to have his k transmission changed out. My brothers son had to have his k transmission changed out at miles. My brother has had two transmissions changed out in his tahoe. And finally, today January 26, , my wifes transmission in her Suburban with only , never used to tow anything but a lawn mower trailer, just went out with several school kids on board on a very busy road with no shoulders. This could have turned into a bad situation. What is the deal?.

16 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 01/20/

My Suburban had a transmission failure at miles that required me to purchase a new transmission at a cost of $ We were almost in an accident because the vehicle stopped shifting while at highway speeds and barely made it safely to the shoulder. There was no warning or engine light and the transmission appeared fine although it was beyond repair. The fluid level was good and it was not burned. Chevrolet says there is nothing they can do as the warranty is for 3 years and miles.

17 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 01/01/

January 1, just after leaving my home, I stopped at a stop sign and when I accelerated from a stop a loud clunk and then a constant whinning sound. I drove the vehicle home the one mile from the stop sign in first gear, the transmission would not shift to second, after returning home the car would not go into reverse either. Transmission failed at , miles. Repair shop says the transmission shell and other components of the transmission was cracked. The transmission shop states that they have had several customers that have experienced the same problem with this transmission. They would consider this to be a common problem with this type of transmission, a bad design according to the repair shop.

18 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 01/17/

Transmission failure. . . Replaced transmission at miles and again at miles.

19 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 11/01/

While driving the transmission failed. The vehicle was towed. The cost for a the transmission was $2,

20 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 10/27/

Sudden, without warning, transmission failure. No explanation given by dealer other than internal failure with recommendation to replace transmission. Only 45, miles and well maintained vehicle.

21 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 10/01/

Re; problems with gm about defective transmission on chev Suburban. *bfthe transmission locking mechanism in the transmission failed which resulted in an accident.

22 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 09/23/

During routine driving, the vehicle's wheels locked up and stopped forward progress. The vehicle was only going 20+- mph at the time. The transmission had failed. The vehicle was able to move in reverse but no other gear. I had noticed some slipping of the transmission but was not sure if that was in fact slipping. The transmission was changed at my local dealership.

23 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 09/09/

Consumer stated every 43, miles transmission failed. As a result, consumer had to replace the part.

24 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 06/09/

Transmission failure in k Suburban with miles while towing 18 foot lightly loaded box trailer on level ground. Towing was in accordance with instructions in owners manual to tow in overdrive. Transmission failed miles after starting tow. Subsequent checking over internet and with friends has revealed many others have experienced same type failure. Chev dealer states that there is no factory service bulletin concerning transmission failures. Failure appears to be do to excessive heat build up.

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25 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 04/01/

At miles the transmission failed. The vehicle was repaired under warranty but the same problem recurred while driving 50/55 mph. The consumer stated that the sun gear and planetary gear failed. The consumer was able to drive the car home in 1st and 2nd gear. The vehicle was not taken to dealership.

26 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 02/27/

Front brakes wore out prematurely at 12, miles. Since had been replaced seven times. Dealer and manufacturer were contacted, but problem had not been resolved. Also, automatic transmission failure.

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27 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 06/15/

When driving at any speed vehicle lost acceleration, causing the driver to pull off the road. Consumer took vehicle to dealership, and mechanic determined that transmission failed.

28 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 03/03/

The transmission failed twice.

29 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 12/30/

Since new the vehicle has exhibited erratic shifting during acceleration. Often the vehicle accelerates briefly when brakes applied. Transmission failed while on vacation at 78, miles.

30 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 03/05/

The transmission shifted very hard into 2nd gear. When I came to a stop and went to go the vehicle would not shift into second gear. It would prceed into third gear after the engine would rev up to a higher rpm. I contacted several transmission shops and a dealership. They all said that I lost the 2nd/4th gear intemediate shaft which also included the reverse gear also. This is on a r4 transmisson. They all said gm knew about the problem but would not do a recall on that model year because of the extenive use of that tranmission in all of their vehicles . They said that almost all of the transmission had the faulty intermediate shaft. This could cause a serious problem for some vehicle owners if the transmission failed at an inopportune time, especially in an emergency that they had to reverse quickly. I had the transmission replaced at a local shop at a very high expense. I thought I would submit this due to the amount of vehicles that used this transmissionin that year and for the safety of the owners.

31 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 11/01/

The steering grabs when turning right, very dangerous. Transmission failed at same time. GMC has failed on this model .

32 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 07/24/

Vehicle experienced a transmission failure due to a defective hub. Manufacturer notified , and informed consumer that nothing could be done due to vehicle being out of its warranty. Feel free to provide further details.

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33 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 03/15/

The second transmission is failing at 85, thousand miles, out of warranty. Is it normal for two tranmissions to fail at relatively low mileage. I don't think so. My Suburban is in fantastic condition. It is extremely well maintained and believe it or not like new. Now I have to spend another $ on top of just having the brakes done??.

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34 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 11/24/

Front brakes have been replaced three times, each time one of the calipers was reported to have frozen or stuck, so that only one front brake was working. The rear brakes were first reported to have a rearmain seal leak, but later found to never work. The transmission failed after only miles while the vehicle was being test driven by the mechanic checking the brakes.

35 Transmission Failure problem of the Chevrolet Suburban

Failure Date: 08/15/

Transmission failed, causing vehicle to have sudden loss of speed. . . Almost rearended.


Other Common Power Train related problems of Chevrolet Suburban

Sours: https://www.carproblemzoo.com/chevrolet/suburban/transmission-failure-problems.php

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