Sounds like maybe a ground issue on the instrument cluster. Do you have a good ground from the battery to the cab? Is the ground for the instrument cluster in good shape? It could just be a bad gauge.
Sounds like maybe a ground issue on the instrument cluster. Do you have a good ground from the battery to the cab? Is the ground for the instrument cluster in good shape? It could just be a bad gauge.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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