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.Google+
Car Problem Reports
Cadillac Seville STS Fuel Level Sensor Failure
Cadillac Seville STS Problem
Average Mileage: 124,985 mi (70,000 mi - 208,857 mi)
Visitor, 2000 Cadillac Seville STS, 109,000 mi
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, 2003 Cadillac Seville STS, 79,000 mi
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, 1999 Cadillac Seville STS, 208,857 mi
I'm stuck on the side of the road right now waiting for my girl to give me a ride to the gas station. It's 28 degrees out and I love the car but this is a very fucked up thing to have go wrong with so many cars. My boy's 01 Park Ave had the exact same problem. I can hear the fuel pump come on but my car just stalled while going on MD 210 ( The most dangerous highway in the State of Maryland, the same hwy where 8 street racers were killed apprx 2 miles further) and I got cars wizzing past my ass at 90 mph. This pump is coming out first thing Monday morning.
Visitor, 2002 Cadillac Seville STS, 199,000 mi
Fuel tank level fluctuates up and down while driving
When level is quarter full readings are erratic,not reliable
Visitor, 1997 Cadillac Seville STS
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, 1990 Cadillac Seville STS, 70,000 mi
Fuel guage showed irradic readings. Replaced the sensor to resolve the issue.
Fuel level is always wrong. Sometimes it shoots to full, then immediately drops to E.