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Jumping Fuel Guage????????

This is a discussion on Jumping Fuel Guage???????? within the Camaro / SS forums, part of the Vehicle Specific category; I have a 98 z28 and a few months back I noticed it was idling a bit rough. I put ...

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    I lika da Chevy's LETHALxLS1's Avatar
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    Angry Jumping Fuel Guage????????

    I have a 98 z28 and a few months back I noticed it was idling a bit rough. I put plugs,wires,fuel filter and cleaned MAF. It still idled a bit rough and I was told it was motor mounts(which I dont bellieve). Today I noticed the fuel gauge jumps up and down in perfect time as it surges/idles rough(when i feel it jump or miss the gauge jumps). It jumps back and forth within a qaurter of a tank. What could this be??? Could the fuel pump be going out?? The car seems to run ok when I am driving. I am lost. Any help would be great. Thanks fellas----mike

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    Member Mjolnir's Avatar
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    Something electrical. Get the alternator checked.

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    Member Mjolnir's Avatar
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    Get a voltage meter and use it to test it. see if it spikes.

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    Quote Originally Posted by Mjolnir View Post
    Get a voltage meter and use it to test it. see if it spikes.
    Do you think whatever is doing this could make it surge at idle???thanks

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    Ricekiller z28punk's Avatar
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    sometimes the resistor grid on the fuel pump gets coroded, but it sounds like u got other issues

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    Ok check this out!!!! when i gas it hard the radio turns itself up!!!!
    WTF!!!!!!!!!!!!!!!!!!!!!!! I dont understand!!! It has done this several times.
    Today i started my car up and the fuel guage jumped but not near as bad.
    I guess I gotta take it to the shop cause my back is screwed and I cant bend down to test my alternator. I hope this isnt something crazy that is impossible to fix. Call me old fashioned but I think there is way to many sensors and bs on these cars. I mean its all good till some crazy shit starts like this.

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