OEM 2005 Buick Century Transmission Pan

2005 Buick Century Parts Questions & Experts Answers

• Q: How to replace the transmission pan on 2005 Buick Century?

  A: Before replacing the Oil Pan begin by raising and supporting your vehicle with a drain pan positioned under the transaxle Oil Pan. Start by unscrewing the bolts on the transaxle Oil Pan from the front and sides before you detach the rear bolts. Prior to separation use a rubber mallet or screwdriver for light prying action that will protect the Oil Pan and case mating areas. Complete drainage of fluid must occur before you take out all bolts and the Oil Pan. During the inspection you should remove the Oil Pan gasket to check the Oil Pan and filter for impurities that could include metal particles along with clutch facing material and rubber particles along with engine coolant to identify the source of contamination. You should replace the Oil Pan if it shows bending or distortion in the Oil Pan flange because attempts to straighten this part should be avoided. To remove bottom oil the washers on Oil Pan bolts should be examined for inverted position leading to new washer installation. Refine the Oil Pan and case flanges using solvent until all oil film disappears before allowing them to air dry. Wipe down both surfaces of the Oil Pan gasket before eliminating all remaining old gasket material from the surfaces. Begin by installing the new Oil Pan gasket and then carefully put the Oil Pan into its correct position. The install procedure for Oil Pan bolts includes tightening them to 14 nm (10 ft. Lbs.). Free the rear of the vehicle and proceed to add dextron(R) iii fluid while keeping the gear selector in park position. Begin engine operation at low speed without excessive acceleration before checking fluid level while examining the system for any leakage points.