1994 Cadillac DeVille Logo
Posted on Jul 25, 2012
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1994 cadillac sedan deville 4.9 dies while i'm driving but then starts back up but only seems to be doing it in the extreme heat. We already replaced the egr valve the plugs & wires and the i

1994 cadillac sedan deville 4.9 dies while i'm driving but then starts back up but only seems to be doing it in the extreme heat. We already replaced the egr valve the plugs & wires and the ignition module any ideas what it could be?

  • myfagan Feb 25, 2016

    Camshaft aND crankshaft position sensors can do the same thing when they are going bad.

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  • Posted on Jul 29, 2012
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Fuel pressure regulator I guarantee you

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  • Posted on Feb 25, 2016
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Check the running fuel pressure before you just replace the regulator. Clean the throttle body and clean the idle air control pintle and seat area too.

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  • Posted on Feb 25, 2016
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Is it throwing a check engine light? Cam and crankshaft position sensors will cause the same problem when they go bad (usually heat kills them)

3 Related Answers

Anonymous

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  • Posted on Feb 23, 2010

SOURCE: 1991 cadillac deville fwd 4.9 engine shudders hard

I have a 1991 Cadillac Fleetwood 4.9 120000 miles, I have the same problem. replaced plugs,wires,cleaned throttle body, and O2 sensor and have same problem. Taking it to a GM shop on 02/24/10.

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Anonymous

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  • Posted on Jun 22, 2009

SOURCE: 1994 Cadillac Deville Starting Problems

outta gas? water or impurities in the fuel causing fouling?? check spark plugs do a visual

Anonymous

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  • Posted on Jul 08, 2009

SOURCE: 92 cadillac will not stay running

Check for water in gas.

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