Question about 1992 Cadillac DeVille

3 Answers

Bogs down it runs fine for about 1 to 2 miles then it starts jerking and loses power when i step on gas it bogs down and backfires then i pull of to the side of rd. and put in park it runs fine again in idle speed then step on gas for get it it bogs down again and backfires what is going on

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  • Anonymous May 01, 2009

    I have the same exact problem with my 1989 jeep comanche. Did you get an answer??

  • Anonymous Mar 17, 2014

    Wen i push on gas starts to bog out then it takes of fine the idle is at 10mph why

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Even though this is an old post i feel it needs an answer since there is 225 followers wanting an answer. This situation sounds as if this vehicle is either suffering from the Throttle Position Sensor switch which has bad spots in it causing lack of voltage or the Fuel rail pressure regulator which can not keep the fuel pressure built up in the fuel rail making the auto veel like it is running out of fuel.And the transmission speed densor which also controls fuel. The situations for each device has a test that can be done to determine which one it is. And last but not least lets never forget our fuel filter this can cause the exact same problem. I am eliminating the cam sensor because it stabilizes at idle. Eliminating the crank sensor because it too at idle also stabilizes and returns a smooth idle. So a fueling problem is what we have here one of the above. Enjoy and if you need help determining which one just ask me I will help you figure it out. Please rate my advise thanks it is how i receive my achievements.

Posted on Apr 11, 2012

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  • Shade Tree All Repair

    some words are misspelled above sorry( densor is really sensor.......... veel = feel

  • ronnette tillis
    ronnette tillis Feb 24, 2014

    thank you

  • Shade Tree All Repair

    Just behind the AC compressor left side if the engine little square box with a plastic rubber elbow on top of it attached to a hard plastic vacuum line

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Throttle position sensor

Posted on Aug 05, 2008

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Where is the throttle postion sensor located? I am having the same problems.

Posted on Mar 12, 2009

2 Suggested Answers

SOURCE: fuel system

fuel strauner inside tank

Posted on Jul 17, 2008

6ya6ya
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Starter kick back


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Start the truck at night, then look under the hood while it's running. Don't use a flashlight or your headlights; it should be dark !

If you see sparks anywhere around the engine, you've found the problem. Now you can turn on a light to see where they're coming from - probably from a cracked ignition coil.

Good luck !

Marco

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Fuel system


fuel strauner inside tank

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