OEM Buick Rainier Oil Pan

Buick Rainier Oil Pan Parts Questions & Experts Answers

• Oil Pan
  12613437
  Q: How to replace the oil pan on Buick Rainier?

  A: To pull out the Oil Pan, the whole operation that has to be done is first jump off the negative Battery Cable. Unscrew the a/c bottom bolts and only partially release the top bolts (2, 3). Remove the oil level indicator and tube, as well as the stabilizer shaft. Remove the front Differential, attach it to the frame and take off the front drive axle intermediate shaft bearing assembly. Drain the engine oil and unbolt transmission cooler lines from the engine block. Take off the 4 transmission bell housing bolts that are attached to the Oil Pan and then remove the remaining bolts in the Oil Pan. Install 2 Oil Pan bolts into the jack screws on the Oil Pan and tighten them equally to loosen off the Oil Pan of the engine. Clean and check the Oil Pan and apply sealer of 3 mm (0.12 in) over the block. Mount the Oil Pan by making sure that it would clear the Oil Pump and screen assembly before installing the Oil Pan bolts. Check the alignment of the Oil Pan with the help of a straight edge at the back of the block and Oil Pan transmission with the mounting surface and tighten the Oil Pan side bolts to 25 n.m (18 lb ft) and the end bolts to 10 n.m (89 lb.in). Reinstall the 4 bell housing bolts of the 4transmission tightening to 47 n.m (35 lb ft) and with it clip back the transmission cooler lines to the engine block. Mount the front drive axle intermediate shaft bearing assembly, oil drain plug, and filter. Clamp on the front Differential, then stabilize with the shaft. Right replacement, the A/C Compressor bottom bolts and tighten all four bolts (2, 3, 4) to a 50 n.m (37 lb ft). Lastly, re-install the oil level indicator and tube, reattach the negative Battery Cable, check the engine for oil leakage, and top up the oil in the engine.