88. Oil Pan Installation

Oil Pan Installation

Tools Required

EN 46109 Guide Pins






Notice: Refer to Fastener Notice .

1. Install the oil level switch (1).

Tighten the oil level switch to 20 N.m (15 lb ft).






Important: Ensure components being sealed with room temperature vulcanizing (RTV) sealant are assembled within 20 minutes. Components assembled after the RTV sealant has skinned-over, approximately 20 minutes, will not seal properly.


2. Completely fill and slightly overfill the oil pan seal groove with a continuous bead of RTV sealant GM P/N 12378521 (Canadian P/N 88901148) or equivalent.
3. Ensure the RTV sealant GM P/N 12378521 (Canadian P/N 88901148) or equivalent bead is higher than the oil pan sealing surface (1) by 3 mm (0.118 in).




4. To prevent shifting of the oil pan, install one EN 46109 into a bolt hole in each side of the lower crankcase.




5. Position the oil pan onto the lower crankcase.




6. Loosely install several of the oil pan bolts.
7. Remove the EN 46109 .
8. Finish loosely installing the remaining oil pan bolts.




9. Tighten the oil pan bolts in the sequence shown.

1. Tighten the oil pan bolts a first pass to 8 N.m (71 lb in) in the sequence shown.
2. Tighten the oil pan bolts a final pass to 12 N.m (106 lb in) in the sequence shown.


10. Clean off any sealant that has protruded to the exterior of the engine.