If you are having a problem with your door, you should take it to a dealer. Look up a local Buick dealership and call them to schedule your appointment for service.
Yes, This is the system it has. DELCO POWERMASTER 3 ABS (4-wheel, Integral) 1989 to 1991 Buick Regal
The sending unit is likely faulty
I need a new battery for my 89 buick century 4 door 6 cyl. Does anyone know the battery size?
You have to buy the retrofit kit from an auto parts store. Comes with the correct valves, freon and instructions. Runs about $50.
you have to remove the housing nuts from the inside the trunk; it is very akward getting to them; then you should be able to get at it from there or from lifting the unit out from the inside of your car.
89 Buick Century uses a timing Chain. Not a belt.
Several years ago, I replaced the fuel filter on my mother's 89 Buick Regal 3.1. I don't remember exactly whether it was underneath the car near drivers door or passenger door. But once you jack the vehicle up, you should be able to see it. Don't forget the system is pressurized and fuel will spray out after a minute or so, once you loosen line, make sure you install new filter the right way, indicated by stamped arrow on filter. I hope this will help, sorry couldn't give you exact location, been too many years but it's in that area.
how much does a 89 buick riviera weight
how do i tighten the steering column on a 89 buick park avenue electra
The Question Is To Vague
89 Buick park ave install a heater coil
check your cam shaft sensor