OEM 2005 Chevrolet Colorado Oil Pan

2005 Chevrolet Colorado Oil Pan Parts and Q&A

• Q: How to replace the oil pan on 2005 Chevrolet Colorado?

  A: The oil level indicator and tube needs removal before you can proceed with taking out the engine protection shield. Clearing the Oil Pan requires draining the engine oil and taking out several components. For rwd, remove the crossmember; the differential carrier assembly requires stable pinion yoke maintenance and downward motion at this point so remove the front propeller shaft and differential carrier assembly bushing to frame bolts. Begin by removing three components: the service slot plug, the transmission fuel hose/pipe bracket securing nuts, and the four lower transmission mounting bolts from the Oil Pan. To access the power steering gear you must first remove the mounting bolts then pull it downward. First disconnect the engine wiring harness retainers from the Oil Pan followed by removing the Oil Pan bolts. Tighten two bolts into the threaded holes at the rear of the Oil Pan to operate as jack screws before removing both the Oil Pan and the two bolts from their positions. Check and clean both the Oil Pan and the engine block sealing contact surfaces. Use a 5.5 mm (0.22 inch) bead of sealer gm p/n 12378521 (Canadian P/N 88901148) in the marked areas of the Oil Pan while ensuring the sealer does not come into contact with the oil pump pipe and screen assembly. Place the Oil Pan on the engine block while making sure the rear Oil Pan surface matches the rear block surface. Tighten all side bolts of the Oil Pan to 25 nm (18 ft. Lbs.) while ending bolts require a torque of 10 nm (89 inch lbs.). Ensure Oil Pan alignment through transmission check. After mounting the power steering gear to the frame assembly you should install its mounting bolts. Complete the wiring harness retainers connection to the Oil Pan. Secure the four lower transmission mounting bolts with 50 nm torque settings before bolting the transmission fuel hose/pipe bracket to its position. Apply 20 nm torque settings for this bracket assembly also. The installation requires the service slot plug together with crossmember for rwd or differential carrier assembly positioning on the frame followed by frame bolt installation of the differential carrier assembly bushing. Torque all frame bolts to 152 nm (112 ft. Lbs.) prior to front propeller shaft mounting. Complete the installation by installing the shield, filling the engine with oil and adding the level indicator and its tube.