Cadillac Seville STS Problem Report
Cadillac Seville STS Erratic Fuel Gauge Operation
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.
When the actual fuel level is just below 1/4 tank the guage will float to full and stay until the car is shut off. - Visitor
When the fuel level gets low, such as quarter tank, it jumps around and goes to three quarters not reliable have to keep full - Visitor
Fuel guage showed irradic readings. Replaced the sensor to resolve the issue. - Visitor
1/4 tank and it goes nuts so I keep track of gallons used - Visitor
Gas gauge reads full even when it is almost empty. Once I fill the the tank the gauge is up and down until it settles to full. - Visitor
Gauage goes up and down, then flat empty. Had to call AAA for gas! - Visitor
Fuel tank level fluctuates up and down while driving - Visitor
When level is quarter full readings are erratic,not reliable - longnaso
engine shut down, reads full, towed to shop. Low pressure, added gas. pressure up & started right up, bad fule sensor. replaced complete fule pump modual to fix. - Visitor
Fuel level is always wrong. Sometimes it shoots to full, then immediately drops to E. - harmony129
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Check Oil Level message appears constantly. I've drained the oil, replaced the sensor and adde...
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I replaced the fuel pump when it failed. Car drove fine after that, however, the gas gauge stil...
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