PontiacBonnevilleClub.com

Hey guys. Sorry I got another question about this cursed car. I got the transmission rebuilt at Aamco a little over a year. I also had them put on a heavy duty transmission cooler. Anyhow, it was doing fine(even shifting better than stock), but lately it has been shifting hard. Especially when it has been drving awhile.
Could it be something as simple as a fluid/filter change? Or something more serious? The rebuild is out of warranty, btw.

A lot of places make a short cut by just testing the solenoids. A good shop will always replace them. It sounds like either a PCS issue or a mount has gone bad. Have you checked the front mount on the driver's side?

yep. they replaced the front mount while they had it apart(i ordered an Anchor one and they put it on). i checked both side mounts and back mount too because there is a "clunk" when going over bumps. seems solid. i thought the clunk may be ball joints...