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Need mechanic help.....

Discussion in 'Cars & Automotive' started by Pokes-WalkingBoss, Jul 11, 2017.

  1. Pokes-WalkingBoss

    Pokes-WalkingBoss Well-Known Member

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    I have a 2000 GMC Sonoma 4wd 4.3L truck. Hard to start and I am getting a check engine light code p1351 ICM High voltage.

    I have changed the following parts

    ICM
    Ignition coil
    Distributor cap / rotor
    Alternator
    Temp sensor

    Use the truck for hunting but Louisiana requires inspection sticker. Will not inspect with check engine light.

    Any assistance on the matter would be greatly appreciated.
     



  2. Vitamike

    Vitamike #H9Csuck! Hoopla Pickems Staff

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    I'd check the ICM harness or harness connector for an open or ground.
     
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  3. Pokes-WalkingBoss

    Pokes-WalkingBoss Well-Known Member

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    Appreciate at it, I have checked the connectors and they seem fine . I guess the fun work will begin this weekend tracing the wiring.
     
  4. outofyourmind

    outofyourmind Oklahoma Sooners

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    Unplug the check engine light.

    But some expert advice is necessary.
    More input is needed.

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  5. There is A Moose at 3rd

    There is A Moose at 3rd Bi-Fan Curious

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    I am the lucky motherfucker who is waiting on a compressor to be ordered in the middle of the fucking summer. My Car is hellfire.

    Me the past 2 and a half weeks.

    Source: Me

    [​IMG]
     
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    Last edited: Jul 11, 2017
  6. AlaskaGuy

    AlaskaGuy Throbbing Member

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    Disconnect your negative battery cable for a good 5 - 10 minutes then reconnect it and you're good to go.
     
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  7. Bandwagonbo2

    Bandwagonbo2 Живущая арендная плата, свободная в вашей главе

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    Take it to Autozone, get them to check it out and give you some helpful tips. Thats my best advice short of taking it to a qualified mechanic. Its likely a short in a wire someplace.
     
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  8. thedddd

    thedddd Well-Known Member

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    That is probably the best bet an open wire.

    I had a similar issue on an old Dodge Caravan where the harness was on the exhaust manifold. It caused the whole ECM to short out, only if I caught it sooner. Luckily for me I was able to find an ECM in the junk yard. I replaced it and fixed the wires and it ran fine until I junked the thing.

    When you fix the problem disconnect the battery for 15 minutes and press the horn for about 30 seconds to clear out any residual electricity from the capacitor and it will reset the check engine light.

    EDIT: Forgot to add, If you clear out the check engine, most states for their emission tests will still fail. Before you take it, for the test, run the car for about 50 to 100 miles under 55mph.
     
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    Last edited: Jul 11, 2017
  9. 7Samurai13

    7Samurai13 Funniest SH member

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    [​IMG]
     
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  10. williewilliejuan

    williewilliejuan Giant Member

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    Call the man.
     
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  11. outofyourmind

    outofyourmind Oklahoma Sooners

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  12. outofyourmind

    outofyourmind Oklahoma Sooners

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    I know who you are talking about.
    He'll know the answer.

    @Peter Gozintite
     
  13. Godstree

    Godstree Well-Known Member

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    Run it into the lake. Call it in stolen in the morning.

    Edit: Make sure you have full coverage first.
     
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  14. Guy Incognito

    Guy Incognito And that's the end of that chapter

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    Try punching it.
     
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  15. BTHOtu

    BTHOtu Well-Known Member

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    high voltage...could be chasing your tail with that one.
     
  16. SteelersPride

    SteelersPride Absolutely Worthless Poster

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    this
     
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  17. Wild Turkey

    Wild Turkey Sarcasm: Just one of my many services.

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    Rub some dirt on it.
     
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  18. handicappers

    handicappers Permanent Resident in NWPATSFAG's Head

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    Buy a newer vehicle with a warranty.
     
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  19. RobBase

    RobBase Ayatollah of Rock 'n' Rolla

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  20. Peter Gozintite

    Peter Gozintite Asshole

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    I usually throw some tools into the engine compartment, and scream at it.
     
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