Sounds like the tech that changed your oil simply didnt reset the computer after the change. There should be instructions in your owners manual to do it yourself. Hope this helped, and good luck!
fuel filter location in 1990 buck lesabre
How do you replace fuel filter on 1993 Buick LeSabre, the replacement filter I bought appears to be a snap on. I have only replaced the screw on type.
Just squeez the white colored plastic pieces and pull the lines away from the filter. Warning Fuell will leak or spray from lines but, will stop shortly. than just sanp the lines onto the new filter
vehicle does not have a water filter
On my 98 buick LeSabre the fuel filter was under the car passenger side just in front of the rear tire.Good luck!
3387A
The oil filter location for the 2000 Buick LeSabre is on the front of the motor. Look just to the left of the fan belt near the left side of the motor.
The fuel filter is on the frame just forward of the gas tank.
In front of the left rear tire.
under hood left side
On the RF of the engine underneath.
Purchase a Purolator Cabin Filter. It comes with complete instructions.