Question about 1999 Cadillac DeVille

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1999 Cadillac DeVille

Driving down the road and the car engine died. Let is set and cool down, then it started and ran fine. What could be the problem? What is the recommended fix?

Vic

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Could also be fuel pump. These are quite easy to change as there is an access hole in the trunk.....

Posted on Dec 23, 2008

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I had a simalr problem with a 1991 dodge shadow es the problem turned out to be a corroded 12 volt power supply

Posted on Dec 17, 2008

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Most common cause is the crankshaft postion sensor

Posted on Dec 17, 2008

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I have seen this problem before and the cause could be TCC Staying in Lock-up or an Electrical Issue within the Engine itself or a Fuel Delivery Issue.

If the Transmission TCC is the issue, try driving at slower speeds (below 30 and come to a stop, does it Shut off then? Increase Speed by 10 and try again. Does it react differently once you go above 42-45 MPH?

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Could be.
Has the thermostat been replaced ?
You could run the engine without the radiator cap to see if the system has air pockets.
A restriction in the exhaust could cause the engine to run hotter on the road than on short trips.

Aug 04, 2012 | 1999 Cadillac DeVille

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It's not your battery. It might be your IAC valve (intake air control valve) or an EGR valve, maybe even a vacuum leak. The battery is fine. Your fuel filter is most likely fine. When the fuel filter plugs, the car will usualy idle ok but will lose power during acceleration.

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Depending on the trouble codes, it may be the ECM. (computer)
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hi it sounds like the acclerrator pump on carby when you first take off is this whot it dose .

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2001 cadillac deville


check diagnostic codes.could possibly be crankshaft and camshaft position sensor

May 07, 2009 | 2001 Cadillac DeVille

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maybe ur fuel pump needs replacing. if fuel pump goes out no gas to egnition. or your fuel pump relay might have blown chech owners manual or relays.

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bad ground to battery main terminal..check and advise

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