Question about 2003 Cadillac Deville
The engine on my 2003 Deville just shuts off while I'm driving. I just bought the car and This has already happened twice. I was driving about 30mph at the time. Could it be fuel related? I have been using regular gas. The manual says 87 octane is ok. What causes this?
Check your pending trouble codes, could be your crankshaft sensor b...
Posted on Dec 18, 2008
I would start with replacing the fuel filter. it's the cheapest fix and sounds like the problem.
Posted on Nov 28, 2008
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Posted on Jan 02, 2017
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This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control
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