As per any vehicle, there are many factors that determine MPG. Wheel alignment, proper tune-up, tire inflation etc. Speed travelled is also a factor as well as engine size.
No
Illustrate how to jump start a 2004 buick lesabre
118 ft lbs 1997-2004 Buick LeSabre
Hire a mechanic!
Inside the fuel tank
To repair a seat heater on a 2004 Buick LeSabre, disconnect the connector and check for voltage. If there is no voltage, replace the switch. If there is voltage, check for an open circuit.
Sensor is likely bad
Yes with a 4 inch lift
In the fuel tank.In the fuel tank.
It is in the fuel tank.It is in the fuel tank.
Try under vehicle follow the fuel line from the tank
5 to 7 for a fluid change Add 3 to 5 for a rebuild.