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Old 09-30-2012, 01:31 PM   #4
GMCJOE
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Join Date: Aug 2012
Location: Junction City, KS
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Re: Fuel Gauge Help Needed (not typical problem)

Sounds to me like your sending unit isn't working properly since the gauge reads full grounding it out. Float might be sticking after a certain point. Might be some build up on the sending unit if it sat for a long time. Pull the sending unit out of the tank and see if your float is bad, why it isn't traveling any further than 1/4 of tank, or in general what the issue is.
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