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1997 buick lesabre

05-14-2015, 07:05 PM
I am having problem with the gas gauge I have a full tank of gas but the gauge needle is stuck on E but when I unhook the battery and hook it back and start the car the gas gauge needle is on the full and its stays on full for like 3 days and then the gas gauge needle will drop back down to the E and stay there does this sound like something wrong in the fuel pump or do it sound like electrical problems??

Blue Bowtie
05-14-2015, 08:37 PM
Measure the resistance of the gauge sender in the wire harness on the green and black/white wires (A and B terminals - C terminal is a reference voltage). The instrument panel gauge is driven by the PCM, which receives its signal from the sender.

Tech II
05-14-2015, 10:01 PM
Just disconnect the harness at the fuel tank.......turn key on.....if it goes full, it's the fuel level sender.......

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