The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.Google+
Car Problem Reports
Chevrolet S10 Fuel Level Sensor Failure
Chevrolet S10 Problem
Average Mileage: 127,934 mi (75,000 mi - 177,238 mi)
Visitor, 1999 Chevrolet S10, 144,000 mi
Upon start-up fuel gauge goes to full then to correct level, then back to full, then bounce back and forth between proper reading and full. Then would read higher than normal unless made a somewhat sharp turn or over rough terrain then would make its way to proper level. Each day worse and worse.
Visitor, 2000 Chevrolet S10, 99,867 mi
Fuel gauge hasn't worked for years. I just keep track of my mileage.
The problem was somewhat fixed by replacement of the fuel injection system.
The gauge still isn't totally accurate. Also the low fuel lite comes on when parked in a downhill position.
Visitor, 1990 Chevrolet S10, 75,000 mi
gas gauge reads full all the time... just like my s10 pickup... hmmm
Visitor, 1997 Chevrolet S10, 123,500 mi
Level always reads high
Visitor, 1999 Chevrolet S10, 177,238 mi
Gauge reads full, then drops to empty, then back to full every 4 or 5 minutes when traveling. Doesn't matter whether there are 3 gallons of gas or a recently filled tank. Haven't found a solution yet.