Loud knocking is expensive,light knocking is cheaper,knocking while going up hill is that you need higher grade of gas
Having owned and worked om a few Buick's , it is probably a Rod bearing . expensive job .
SOURCE: Where is the fuel filter located for Buick Century 2001
The fuel filter is located underneath the car in front of the gas tank.
You have release the fuel pressure. Remove the fuel filler cap, locate the fuel test port on the fuel rail on the passenger side on the end of the right real fuel rail for a 3.1L engine.
3.8L engine yhr test port is located at the pressure regulator under the trim cover.
SOURCE: Radiator Plug Location
It should be on the right lower side of the radiator when looking at the engine .
SOURCE: 2001 Buick Century shift solenoid
It is in the side cover on the valve body. The transmission needs to be removed to access the solenoids.
SOURCE: i have a 2001 buick century the odometer light is
its an led you have to pull the instrument panel and have it serviced
SOURCE: Service Vehicle, Trac Off, & ABS lights 2001 Buick Century.
I just put in new fron pads in my 2000 buick century and the track off and the anti lock brake light and the service engine soon stays on
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