Thread: Tell me why ?
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Old 05-20-2020, 04:08 AM   #3
gmc684x4
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Join Date: Jul 2012
Location: Whitehorse yukon
Posts: 1,218
Re: Tell me why ?

I am going to suggest it was most likely coated in oil that broke the circuit
once the new sending unit got washed in gas it washed the oil off the level sensor and started to give feedback to the gauge

The purpose of the oil is most likely a rust preventive measure
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