Question about Chevrolet Malibu

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Hi im a guru on this site and i have a problem with a 2007 malibu gaS gauge reads backwards its correct but full is empty new sending unit cluster checked by dealer to be good harness checks good any ideas considered ecm but to only read backwards dont really think it would be the ecm a little help

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The sender and the gauge need to be matched.You can:

You can swap gauges or turn the arm on the float around(if you can) so it moves the other way. or rewire the sender

Posted on Apr 07, 2011

  • david balderston Apr 08, 2011

    have you seen this problem before rewiring to sender should work but seems strange that this would be a solution is it possible the ecm is the problem i could see gauge flucuation or no reading but to be accurate only in the reverse order sounds really strange how do you match gauge to sender do you accomplish this with your scanner

  • Tim Whalen Apr 09, 2011

    you will need to ohm the sender and gauge:

    example sender: empty =10 ohms full=180 ohm

    example gauge: empty= 240 ohms full= 33 ohm

    results gauge reads backwards.... now if it is the correct gauge for the sender and the fuel gauge reads backwards, but accurate, the float arm has been installed from left to right
    into the pivot. Reinstall from right to left. I hope this helped Tim

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