GM 8 Speed Transmission Claims

Owners of the Chevrolet Colorado and other models have been  complaining about hesitation and shifting issues on GM 8 speed vehicles.  The vehicles are equipped with GM 8L45 or 8L90 automatic transmissions that hesitate when drivers accelerate or decelerate. Drivers complain the transmissions can shift so hard it feels its almost like being hit by another vehicle.

According to the lawsuit, each fix offered by the automaker has allegedly failed to repair the shaking, shuddering and jerking, and the plaintiffs claim both the torque converters and transmissions cause problems with the hydraulic systems and gears.

1. Claims

The class action has been filed that alleges fixes offered General Motors  haven’t solved problems with hard shifting, shaking, jerking, hesitating and shuddering. The class-action lawsuit includes the following vehicles,

  • 2015-2019 Chevrolet Silverado
  • 2017-2019 Chevrolet Colorado
  • 2015-2019 Chevrolet Corvette
  • 2016-2019 Chevrolet Camaro
  • 2015-2019 Cadillac Escalade
  • 2015-2019 Cadillac Escalade ESV
  • 2016-2019 Cadillac ATS
  • 2016-2019 Cadillac ATS-V
  • 2016-2019 Cadillac CTS
  • 2016-2019 Cadillac CT6
  • 2016-2019 Cadillac CTS-V
  • 2015-2019 GMC Sierra
  • 2015-2019 GMC Yukon
  • 2015-2019 GMC Yukon XL
  • 2017-2019 GMC Canyon2. GM Fixes, Service Bulletins and Recalls

     

    Image result for automobile recall NHTSA

    According to the lawsuit, each fix offered by the automaker has allegedly failed to repair the shaking, shuddering and jerking, and the plaintiffs claim both the torque converters and transmissions cause problems with the hydraulic systems and gears.  Despite complaints, GM has not recalled the vehicle for this problem, nor has the NHTSA ordered a recall.  Instead the company has issued a service bulletin  Chevrolet Shudder Service Bulletin 16-NA-175.

    That provides for new transmission fluid, and other changes, which seems to have limited benefit for many owners.


    3. What You Can Do 

    Our office is handling claims involving the GM 8 speed transmission.  We offer a free consultation.  You may be entitled to a new vehicle, refund, or compensation to enable you to get into another car.  Claims are handled on contingency with no payment required.


    Sources 

GMC transmission review

Chevrolet Colorado Service Bulletin

 

 

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CALL (973) 598-1980 for a Free Consultation.  Claims handled by experienced attorney on contingency with no payment required from consumer.

Chevrolet Shudder Service Bulletin 16-NA-175

16-NA-175: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at a Steady State – (Oct 11, 2018)

 

Some customers may comment on any of the following conditions:

A shake and/or shudder during light throttle acceleration between 25 and 80 mph (40 and 128 km/h) steady state driving when transmission is not actively shifting gears. A shudder feeling that may be described as driving over rumble strips or rough pavement. Shudder feeling is evident in both Drive and M7 MY15-16 & L7 MY17, MY18 and MY19 mode.

Important: Do NOT replace the torque converter or transmission assembly for this condition. Engineer reviews have proven that replacing the torque converter does not provide a long-term solution to TCC shudder. A revised service procedure will be released in Q1 of 2019. If the vehicle experiences a repeat shudder condition, this document should be followed again. All part replacement claims will be subject to engineering analysis. Any part(s) determined not to be defective will be subject to a possible claim debit.

1. Comments

Chevrolet Colorado owners have experienced significant problems with shudder and hesitation and here are some typical complaints,

“my truck has started randomly doing a quick vibration (fast paced vibration like driving over rumble strips on highway) that typically lasts a second or less.  Sometimes it will do it multiple times over a perioid of several seconds, other times its just a quick vibration.  Its a pretty significant vibration, I really can feel it in the steering wheel and the entire column shakes.   Seems like all interior pieces vibrate as well.”
Chevrolet Colorado Problem Forum

Owners may be entitled to compensation or new vehicles.

Claims for Chevrolet Shudder Vibration

2. Other Sources

Chevrolet Colorado Vibration

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If you experienced this problem and the vehicle has been subject to repair, you may be entitled to compensation, a refund, or a new vehicle.  Call an experienced attorney, no payment needed.

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I have a new Colorado that still has not been fixed. Can you help.

Chevrolet Colorado Vibration

2018 Chevrolet Colorado owners are complaining about shudder or vibration on their vehicles.   Dealers are suggesting transmission fluid change, torque converter replacement and other remedies. Owners who purchased vehicles with these problems may be entitled to refunds or new vehicles.

1. Complaints

I first experienced a shuddering that could make the beverage in my cup sitting in the cup holder on the right side of the transmission shifting lever form foam. Oh dang, but road repairs in some parts of Texas appear to be irregularly semi-scheduled in a non reoccurring manner on a random basis. My weekly trips along the same road were the only time I was noticing the shudder, so I just chalked it up to bumpy secondary country roads.. And then it happened!

Cruising down the interstate not on cruise control doing around 73 MPH on a flat straight section, I lightly accelerated to kick it up a bit to set the cruise control.. Foam forming in my beverage may have occurred, but I was too preoccupied attempting to see how many pine logs I had just run over to cause the worse jerking experienced yet. I once had a utility trailer built without any suspension using springs, or shocks.. Seeing it jump off the ground and come down with a bang was an experience, and that’s what it felt like this time.

The shuddering was soon occurring often and the speed didn’t seem to be the major factor, Just trying to lightly accelerate while cruising along in a higher gear seemed to be the cause  I searched the internet to see if this had been a reported problem or one subject to a Chevrolet recall when I happened upon this site. I have thoroughly enjoyed reading of the same problem occurring with others and was stimulated to finally contact my Chevy Dealer yesterday with only 2700 miles on my truck!

I made a trip to visit the Service Manager personally and was glad that I did. He was very knowledgeable of these situations and explained a sequential approach to effect a proper solution.. His plan of attack sounds very similar to what I have read aout so far.–Flush the transmission, check fluid flows, and probably replace the torque converter. If it checks out OK there, I’ll drive it for a few hundred miles to see if it was “fixed” or not. If NOT, a prescription for surgery and a transmission replacement may be necessitated

Shudder/Vibration easily felt in steering column about a week ago, has gotten worse and more often.  The tech who signed me in mentioned it may be the transmission fluid they’d used originally, (or the torque converter, which it ended up being). My concern is wondering what they used, why that could cause shudder, vibration, any “long term effects” for the transmission? www.carcomplaints.com/Chevrolet/Colorado/2018/

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