Question about 2001 Cadillac DeVille
Many times when I turn the key/ignition switch it doesn't start, no noise, just dead. But if I continue to turn the key 10-20 times it will finally engage the starter. This onlt happens 3 or 4 times a week. I had the ignition switch changesd but it still does this. All the dash lights are on and the battery is good. I know cadillac has a special starter system that will keep the swithch engaged itself until the car starts. Could this system be the problem?
It could be a loose wire or connector, defective or dirty contacts in
the lock cylinder, broken wire coming from the lock cylinder or a
temperature sensitive module to name a few things.
If this happens only when the temperature is cold, it could be a leaking Fuel Pressure Regulator (FPR), or due to lost pressure in the fuel lines due to cold, in which case you may have to replace the fuel pump / fuel filter / clean injectors.
The best way to diagnose this is to actually take it to a mechanic and have him check for you.
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Posted on May 22, 2008
Sounds like the crankshaft position sensor went bad because of the switch of supplier by GM. Take your car to a shop or AutoZone or other Car Parts place that can diagnose the problem on your car by hooking up a device to the computer in your car.
This sensor has had problems in I believe 00-03 models, the 04 models got an updated sensor that did not have these problems.
Replacing this sensor shouldn't be too hard yourself but have the car computer spit out an error code and see if P0335, P0336, P0385, or P0386 come up.
Let me know how this goes and good luck
Posted on May 22, 2008
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Posted on Jan 02, 2017
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