You probably need to have the transmission rebuilt. I just had mine done. It started shifting hard when it got warmed up. I took it to a transmission shop and they hooked a computer to it and got a 1811 code which they said meens internal damage and needs to be rebuilt. I just picked it up this morning so I hope it will be ok now, since it cost me $1700 bucks.
Loose battery or alterator connections
Where is the lowside service port on a 2000 buick century?
yes
i have a 2000 buick century and the evap comes on where and what could be setten off the evap ?
2000 Buick century gap for spark plug 3.1l
I have a 2000 Buick Century costom and I replaced it but it leaks what could be wrong
No
Underneath the right headlight
On the bottom of trans. You are going to have drop one of your motor mounts 6 to 8 inches. They will tell u that they have to go inside the trans but they dont.
Low Traction
Throttle body
The low pressure AC port on a 2000 Buick Century is located on the accumulator. It is used to fill the system with refrigerant and to check pressure levels.