Defective speed sensors on the transmission can cause problems with the cruise control and speedometer operation, as well as erratic shifting. The connectors on the sensors can corrode and/or the connector terminals can spread (poor connection), which will create similar symptoms. Any of these problems can cause Check Engine Light illumination.
Average mileage: 173,000 (173,000–173,000)
10 people reported this problem
speed control stopped working, i have checked all the components except the relay (i don't know which one that is) and the speed control sensor, i haven't been able to find that. the speedometer works so i think i can rule out the speed sensor so it's back to the relay. anyone know which one that is?