Erratic Fuel Gauge Operation on GMC Sierra 2500

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

RepairPal Verified
Average mileage: 111,990 (84,000–139,980)
Electrical & Lights affected: Gasoline
5 model years affected: 2000, 2001, 2002, 2003, more2004
7 people reported this problem
2 people shared problem details
mine is showing full all the time until i get to arounf halk tank-then staightens out. however i know i am about empty and needle is still pegged out full.
2000 GMC Sierra 2500139,980
almost always jumps from empty to 1/2 full. many issues with this truck and this is the most minor issue
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