Question about 2000 GMC Jimmy

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2000 GMC Jimmy looses power (blacks-out) completely

I own a 2000 GMC Jimmy for which recently have been experiencing some strange behavior from it. Specifically there will be times when I put the key in the ignition, turn to auxilary, and it completely looses power. I have to place a tiny screw driver under the steering column (there is an access hole that allows you to insert a small screw driver in order to depress the key release) to remove the key. I also have to disconnect the battery, then reconnect it and I regain full power. It is bizarre, and does not happen all the time.

The issue is clearly electrical, but that of course is a broad spectrum. Any "like" issues and/or knowledgable feedback will be greatly appreciated.

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  • jthomason411 Jul 28, 2009

    The battery is 3+ years old. The battery cables are original (I purchased the vehicle brand new in 2000). The vehicle now has 103,000 miles.

    In addition I have been experiencing starting issues not related to my posting. Just had the fuel pump replaced yesterday and all was fine for about 4 starts, and then it won't turn over. Perhaps is related???

  • jthomason411 Jul 28, 2009

    Thank you Rob! Your advice is much appreciated. I'm going to start with replacing the battery and cables (since it does need it), then work my way backwards to the ignition... Thanks again..


  • Dennis Gentz
    Dennis Gentz May 11, 2010

    what is the age of the battery? what condition are the battery cables in?



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  • 850 Answers

Ignition barrel needs replacing!
Cheers Rob.

Posted on Jul 28, 2009

  • ROB Jul 28, 2009

    id say it is related but get that battery checked under load conditions! as its getting too old to be reliable anyway!

    Cheers rob.

  • ROB Jul 28, 2009

    keep me posted jim ok

    Cheers rob.



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