Hi Ian. I just read your post regarding police impala transmission problems
and have a problem myself that I thought you could answer. Today while
coming to a stop for the red light (applying the brakes at 40km/hr) my 01
impala started to shudder.
When light turns green and lightly accelerating again it starts to shake.
It feels like I went over a tree branch. I got no codes (no light came on)
but I am still under warranty. I have 5 weeks left and do you think the
dealership can do anything for me since it only happened once?
I see there is a service bulletin for this transmission (00-07-30-002B) but
would the dealership perform this without having the problem duplicated on
I drove on the highway just after and everything is fine. I floored it a
couple of times while going 60km/hr and no hard shifts or anything? Any
I thought the GM 4T-65E was very reliable. Aren't GM vehicles known for
reliable transmissions and you are recommending a ford vehicle in the crown
Thank you for your usual helpful recommendations.
It's doubtful that they will have much luck fixing anything unless
you can duplicate the problem again for them. Are you sure
that it's necessarily the transmission that is causing this shaking
and shuddering? It's possible it's some sort of driveability
Probably not, unless you had been in for the same
complaint multiple times.
I would suggest that you take it in and have them look at
it for the problem. Try to describe the problem in detail.
See if they come up with any history codes. Even if they
don't find anything or fix anything, you now have your
complaint on file "during" the warranty period. Often, if
the problem starts to get worse just out of the warranty
period, the dealership can look back and see that you
had complained of the problem during the warranty
period and can do something for you.
Yeah, they are fairly good transmissions, but I don't think they do
well in a "police interceptor" type of car. I think someone else
mentioned it, but that Chrysler 300 RWD car would make a
fine looking cop car.
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