i have a 1990 grand am with a 2.5 liter engine. someone has put a transmission off a 2.3 engine in the car and the vehicle speed sensor is different. the speedometer will not register right. is there any fix for this other than changing transmissions?
speedometer on 1990 Pontiac Grand Am
by smoke2083 in Milledgeville, GA on May 18, 2011
ANSWER by mastertech6371 , May 18, 2011
you need the gear from the other trans. there are different ones for different gear ratios and you need your old one to pout in the one you have. it is a simple process to change the bullet' Roy