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2000Chev. Venture when stopped SOME times will not start, just Silently DEAD. I keep blowing out the PCM/ABS fuse. Seems to happen after auto warmed up, then shut off and left for few minutes, try to restart and cannot. Last time this happened blew out 3 fuses in a row. Local mechanic has looked for a short, has the wiring diagram, has check wiring and wiggled the wiring to each compnent with ign on to see if he could duplicate blowing of the fuse. Inserted new fuse, everything works fine. This failure has happened 3 times now. Need help!!!

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  • David Gilles Jul 29, 2008

    Cleaned Battery cables and cables to the fuse box...!!!! Need another solution..

  • David Gilles Jul 29, 2008

    2000Chev. Venture when stopped SOME times will not start, just Silently DEAD. I keep blowing out the PCM/ABS fuse. Seems to happen after auto warmed up, then shut off and left for few minutes, try to restart and cannot. Last time this happened blew out 3 fuses in a row. Local mechanic has looked for a short, has the wiring diagram, has check wiring and wiggled the wiring to each compnent with ign on to see if he could duplicate blowing of the fuse. Inserted new fuse, everything works fine. This failure has happened 3 times now. Need help!!!
    Comment by gilles3333, posted on Jul 29, 2008
    Also cleaned batter cables & cables to fuse boxes...

  • David Gilles Jul 29, 2008

    I will relate this information to local mechanic and get back to you .

    Thank You

    Dave

  • David Gilles Jul 31, 2008

    Local Mechanic found problem.. Took Harness apart. Harness to tight and pulled against A/C accumlator wearing thru 4 wires. Also Park shift indicator light blinked.. Had to replace MLP switch. Will make payment now.



    Thank You

    Dave

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  • Master
  • 1,011 Answers

Dear sir/madam,

They are bad to blow this fuse when the fuel pump is going out. When you get on the gas pedal, the demand rises, and the pressure drops to a level to make the pump run more often, so if its going bad, the pump gets hot enough, or is shorting out internally to make the fuse blow. Since this is a 10 amp fuse, the pump must be getting pretty hot to blow it. The throttle position sensor wouldn't blow this fuse, as it is not powered off this side of the power supply, and works to ground anyway. Do this; When it blows again, feel the wires that go into the gas tank to see if they feel hot. You can also feel the wires going to the TPS, and you will see what I mean. The fuse you are talking about does blow when there is an issue with the fuel pump, or a short in the harness going back to the tank from the ECM. This system is also wired through the oil sending unit, so you may have to check there as well for any wires shorting to ground.


thanks
good luck


"Don't forget to rate the solution"

Posted on Jul 29, 2008

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  • Master
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IF you want the wiring diagram of the car ,Please use this link:

http://www.autozone.com/shopping/repairGuide.htm

Good luck......

Posted on Jul 29, 2008

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  • Master
  • 3,614 Answers

This sounds like a bad ground connection problem. Check and clean the battery and body cable grounds.

Posted on Jul 29, 2008

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  • micromaster
    micromaster Jul 29, 2008

    and also, Check your starter and alternator. If they check out check youre ignition switch

  • micromaster
    micromaster Jul 29, 2008

    Very good possibility the EGR valve is stuck partially/completely open. This will not set a fault code as quickly as an engine coolant temp. sensor or IAC (idle air control), which are other possiblities but not as likely as an EGR.

  • micromaster
    micromaster Jul 29, 2008

    Hope this initial info/ideas can help you easily check the problem out there...



    Let me know, if you still need more assistance..



    thank you

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