Transmission Shifting Problems

[jake7995]

I am having problems with jerky shifting on a 1995 Grand Prix 3.1 liter. Would the PCS cause the car to not downshift at the right time? My car will upshift and when I slow down it won't downshift at the right time causing it to want to push the car against braking. And if I slow down and then hit the gas it feels like a manual transmission when you are in too high of a gear. When the car upshifts it jerks.

[GTP Dad]

Yes it could. Take the car to someone with a trans capable scanner and have the computer scanned. They will be able to tell you the problem within a few minutes. PCS replacement costs about $500.

[troy1]

No PCS in a 95. Possilbe your TCC is not unlocking.

[jake7995]

I hooked up the diagnostic tester and the torque converter was locking 100% in 2nd gear. I think it is a broken TCC orifice tube and screen assembly. This would cause unrestricted flow to the TCC solenoid causing early lock-up.

[troy1]

I see you must of read my other post. If its fully locked up in 2nd thats your problem. A transgo shift kit can fix this.

[jake7995]

I am workin on fixing my car right now and I am having problems removing the transaxle side cover. The book says to use the dowel pin holes and insert a bolt to jack the cover away from the trans. I only find one dowl pin hole. Also, are there check balls inside of the side cover. I found 9 when I removed the control valve body assembly, are there more?

[troy1]

How far are you going in? You don't have to take the chain cover off if the filter spun off. There are 4 check balls on the chain cover and 5 small and one large check ball in the valve body. If you have a transgo shift kit they have all the locations also