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Thread: Moving Gauges With Truck Off

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  1. #1
    Join Date
    Jul 2008
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    Racoon Twp., PA
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    Moving Gauges With Truck Off

    Having a few of the gauges move after the truck is shut off.
    2002 Silverado 4.8 w/5.3 swap, tuned, and driving daily

    If i turn the truck off and leave the key in the ignition all the gauges will drop down like they should. But after a few seconds the Temp gauge will go to 210, and the Fuel gauge will go to 3/4 tank regardless how much is actually in there.

    I also noticed the same thing when i merely put the key in the ignition and wait a few seconds.

    Any thoughts?
    2013 CC 5.3
    81 C10 LS1 project

  2. #2
    Join Date
    Jan 2009
    Location
    Round Rock, Texas
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    1,699
    Torch it! Those clusters have some issues. The fuel sending unit is causing the gas guage to move, my buddy's truck did the same thing until we replaced the fuel pump and sending unit. Not sure about the temp gauge playing ping pong.
    cjriojas:if you're weather man is a 5 gallon bucket, YOUUUUUUUUUUU might be a redneck
    danger_ranger83: I see now why it cost so much to get a harness made... FML
    2boostedSilverado: I like Casey's rear end, I want to chat with him about it

  3. #3
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    Jul 2008
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    Gas gauge works fine. This is with the truck off and the key off but still in the ignition.
    2013 CC 5.3
    81 C10 LS1 project

  4. #4
    Join Date
    Feb 2007
    Location
    Sallisaw OK
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    could it be that the residual power is holding the gauges to 0 and as the voltage drops to nothing they go to a position where they would be if they were completely disconnected?
    1996 gmc ext cab short bed
    6.6L 4l80e
    MY GARAGE

  5. #5
    Join Date
    Jul 2008
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    It does this when the security light is NOT blinking, truck is off, and key out of ignition.

    If you turn teh volume up you will hear a click before the gauges move.

    Last edited by tanz45; 11-19-2010 at 02:13 PM.
    2013 CC 5.3
    81 C10 LS1 project

  6. #6
    Join Date
    Nov 2009
    Location
    chicago, il
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    Great oil pressure at ''off'' . I'm leaning towards you needing a new instrument cluster. Seeing as you have an '04, you're prolly gonna need to go to a dealership and have install one. You have to do this because, they need to be programmed '03 and up.
    GET OUT OF HERE WITH THAT RICER MATH!

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    If you aren't living on the edge, you're taking up too much space.

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