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Car stalls speedometer dont work
1991 Cadillac DeVille

Car stalls speedometer dont work

(1991 Cadillac DeVille)
when the car stalls the dash dont work and the sevice engine light comes on when the speedometer works the car runs fine i have relocated all the grounds & put new plugs wires coil & cap
1 answer & 0 comments
Popular Answer
on July 31, 2009
Does everything on the dash stop working or only the speedometer? The engine should not stall just due to the loss of the speedometer signal. I would be a good idea to see what code(s) are stored in the pcm. A faulty pcm could cause stalling and a loss of a speedometer input to the dash. Please don't assume the pcm is at fault. I would recommend you have the problem properly diagnosed before replacing any more parts.
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Oil Leak Diagnosis
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on July 31, 2009
Does everything on the dash stop working or only the speedometer? The engine should not stall just due to the loss of the speedometer signal. I would be a good idea to see what code(s) are stored in the pcm. A faulty pcm could cause stalling and a loss of a speedometer input to the dash. Please don't assume the pcm is at fault. I would recommend you have the problem properly diagnosed before replacing any more parts.
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