How do you change the transmission fluid on a 1995 buick century?

Answer 1

Answer First, to drop the pan and refill after reinstallation does NOT change all of the fluid. The fluid in the torque converter, valve body, etc, remains. A partial change is better than nothing, but by no means complete. The filter can and should be changed while the pan is off, it's easy to do. inspect and clean the pan while it's off, looking for metallic debris in the pan, which is NOT a good thing. Means your tranny is in trouble! Fluid should be clean red. A burned smell, obviously, is bad. if it appears brown/milky looking, suspect water/coolant contamination from fluid cooler in the radiator. Don't drive it! Fluid contaminated this way will wreck the transmission fast. When installing the pan, there is a sequence in which the bolts must be tightened, and should be done with a torque wrench to avoid distorting the pan by over tightening. Tightening sequence and torque specs can be found in a shop manual for your car.