Looking for GM bulletin PIP4395F

[roman1978]

all the people that work for dealerships live with a concept that car is a car just to use it and abuse it without realizing that some of us are very passionate toads their cars and want the car to work flawlessly just like when it were new. So when you tell them you feel something wrong they think you are nuts as long as the car runs and no lights are on then its fine. I have not had any experience with any other brand but GM so I am very curious to find out if Toyota or Nissan works the same. Lately I see these people joining the boards that are supposedly GM representatives as soon as you create a thread that you are experiencing an issue they write to you please contact your dealer to resolve the problem. Most of the dealers are no help at all. You are lucky if you find a good one that will work with you and help you resolve your issues.

[macvicar24]

It's not G8 specific...

Do you have a clunk when shifting from P to D or P to R after a cold start?
Do you have any abnormal gear shifts, not like the other shifts?
You said that you have a 2-3 flare, correct?

It's better to complain about specific problems, and suggest the GM bulletin as a fix. Let them diagnose to be sure.

I do have an occasional clunk from P to R. My main complaint is manual mode 2-3 shift. On 60-100% acceleration, shift from 2-3 pauses then slams hard into gear.


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[STL_G8GT]

My slight clunk from p to d or r was remedied by adding a bit of fluid... when I installed the trans cooler I redid the fill routine and since then, silky smooth. Those of you with the clunk, have you checked that?

[SRG963]

I do have an occasional clunk from P to R. My main complaint is manual mode 2-3 shift. On 60-100% acceleration, shift from 2-3 pauses then slams hard into gear.


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This is EXACTLY what I had/complained about, turned out they, from my paperwork, "found seals from valve body to transmission case were distorted and leaking".


Betting the clunk into gear is also caused by this.

This is the exact wording....

They found the car had "double engauge" when moving from reverse to drive, checked parameters with tech 2, all were good. Line pressure normal, fluid ok, removed valve body/module assembly and found seals from valve body to transmission case were distorted and leaking, replaced transmission seals, refill fluid, reset shift adapts.

[macvicar24]

This is EXACTLY what I had/complained about, turned out they, from my paperwork, "found seals from valve body to transmission case were distorted and leaking".

Interesting. I have a feeling with my local dealer they will check it and say its normal. I thought about driving it hard and keep slamming 2-3 shifts until it breaks. Then they will be forced to fix it. It sucks with these dealerships. They really want your car to come in busted. They have no idea what prevention is.


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[SRG963]

That was one of the three complaints I had related to the transmission. They didn't test my 2-3 shift, as they found the "clunk" into gear problem enough to investigate.