4L60E?

[Pontiacguy]

Hello all, I have an 02 WS6 that clunks when you step on the gas after a 3-2 down shift during a rolling turn.

I have checked the U-joints, and they seem fine.

There is nothing loose underneath.

Once it goes back to 3rd clunking stops.

Any ideas where to look?

 

[Knightrider189]

Have you checked the transmission mounts?


1989 Pontiac Formula Firebird, 5.7, all OEM

 

[Pontiacguy]

Have you checked the transmission mounts?


1989 Pontiac Formula Firebird, 5.7, all OEM

I will check that next and follow up.

Thanks

 

[Pontiacguy]

I will check that next and follow up.

Thanks

So, I put a pry bar between the mount and the tail shaft.

Tranny was moving a good 1/4-3/8 of an inch.

Does that seem like too much movement?

 

[ponchopete]

Given the age of this vehicle, I would change out the motor and transmission mounts.

It won't feel like the same car again.