My trans will not shift into 3rd or 4th gear the check engine light comes on on 1996 Saturn SL1

the check engine light comes on the code reader says gear ratio is incorrect. (733, 734) I reset the computer and all is good for another 500- 750 mls then again no 3rd or 4th gear. Just before this happens I notice a hard banging shift especially on hills. there is 90,000 mls on the car. The car has started hesitating before shifting into reverse when it does it slams then is slow shifting into 1st. I was given a complete tranny from an 2001 will this valve body and or solonoids fit my 96 if that is the problem? Thanks

by in Carmel, NY on December 02, 2013
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
ANSWER by , December 03, 2013
et a free diag and est from aamco then shop prices