Erratic Fuel Gauge Operation on GMC Sonoma

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 127,558 (75,000–192,000)
5 model years affected: 2000, 2001, 2002, 2003, more2004
18 people reported this problem
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Viewing 1 - 8 of 8 comments
Fuel gauge goes back and forth to empty to full
fuel guage not reading accurately
Appears to be only 1/8 tank left of fuel, but stop to re-fuel and the tank is full
eratic fuel gauge operation
Just bought a hi mile zr2,
Gas gauge either reads %100 full or jumps around after starting
The fuel gauge reads empty at all times, when the truck is on and off.
I haven't fixed it yet. I just keep my tank above 1/2 full
Truck takes a few times to turn over had the fuel filter changed already light stil on
SAME PROBLEM WITH ERRATIC FUEL LEVELS, SHUT TRUCK OFF AND RESTART, GUAGE REGISTERS A DIFFERENT LEVEL EACH TIME WHEN THERE IS ONE QUARTER OR LESS. MY SOLUTION IS KEEP IT HALF FULL EACH TIME AND GET OVER IT. 205.000KMS I WILL CHANGE ITHWEN THE PUMP GOES.