Chevrolet, GMC Shudder or Shaking
Chevrolet, GMC shudder or shaking when your driving down the road at a steady or slight acceleration. This usually happens around 25 to 80 miles per hour. What is it? Several things could be the cause like tire balance or wheel balance. Those issues though are ones that are always present. The problem I am talking about is a random but continual problem. This issue has also affected Cadilac vehicles as well and all have been with the 8 speed automatic transmission.
The feel you have is like you are running over the bumps in the road or even can somewhat feel like a wheel balance. If you accelerate harder it seems to go away.
What has been found is the transmission torque convertor is the culprit. Now, before you go any further, this will have to be diagnosed by a certified ASE technician. I say that as the repair can cost several hundred dollars so you need to be sure.
So, what is the problem?
Chevrolet, GMC shudder or shake is found to be the torque convertor. The good news is that the fix is to flush the transmission of its fluid and replace it with new. More about the actual problem can be found here in the TSB from General Motors. Again, all that would need to be confirmed by a certified ASE technician to be on the safe side.
Other makes and models that are experiencing this issue are Cadillac ATS, CTS, CT6 and Escalade models. Chevrolet Camaro, Colorado, Corvette and Silverados are included in this TSB. Of the GMC models, Canyon, Sierra and Yukon models are also listed.
If you feel your vehicle is having these issues and is not listed in the TSB then give us a call or stop by so we can check and see if it is related.
What can I do to fix this?
Chevrolet, GMC Shudder or Shake. What can you do to fix the issue is to give us a call or schedule a diagnostic service so that we can find out for sure your vehicle is doing what the TSB indicates. If it is then we can perform the service here at LMC and get you back on the road quickly.
A do it yourself repair is most likely out of the question as you will need a machine that can flush the transmission of its fluid.
