Chevrolet Repair: 88 Cavalier VSS problem, axle shaft, trans case
QuestionI have a 88 Cavalier with an intermittent code 24 speed sensor alarm. The ECM , MAP and the park reverse switch have been replaced. Comes on after about 15 minutes.
AnswerHi Randy, the first thing to check is the speed sensor itself. Make sure the wiring is good at the sensor and that the sensor isn't loose and worn out. If all looks good i would replace the speed sensor. It is located where the right axle shaft comes out of the trans and is on the top side of the trans case, you'll see it.
Hope this helps
Have a Great Holiday Mark