Erratic Fuel Gauge Operation on Cadillac DeVille

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: 122,399 (12,600–260,000)
14 model years affected: 1990, 1991, 1992, 1994, more1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
211 people reported this problem
Viewing 1 - 20 of 90 comments
Fuel sensor seems to report accurate from full tank to just under half a tank. Then it starts going up towards full again as the tank further empties.
Fuel gauge does not work properly shows full most of the time can't afford to have fuel pump to be pulled out of the gas tank
Gas gauge reads full when empty and shoots back and forth.never know how much fuel is really in there
guage reads true (I think)when I turn key on but when the car starts the guage will read full and not move till car is turned off-hv not been able to fix or hv fixed-any ideas ? loumenn
that fuel gauge reads anywhere from 6 gallons to F then back to E no matter what, but still tells flashes E multiple times when I really am out of gas
Fuel Level doesn't show correct amount of fuel. We just use the single trip gage and on the information panel we also use 'fuel used' and reset it when we fill up the car. Works for us!
Problem just started all of a sudden last June. Fuel gauge shows full when filled, then drops to 1/2 tank as it is used, then starts to go back up to full as the tank gets low. Have been setting trip button every time I fill up and add more fuel when I have gone about 250 miles. Plan to replace the fuel filter.