Oil Pan Installation (C/K/G/C3500HD)

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Important: The oil pan must be installed within five minutes of the sealer being applied or the sealer will begin to cure, causing an inadequate seal.

Apply sealant GM P/N United States 12346286, GM P/N Canada 10953472, to the side of the front cover (1) and rear (2) crankshaft bearing cap, on both the left and right sides (four locations total).

Fig 1: Front Cover & Crankshaft Bearing Cap Sealant Locations (C/K/G/C3500HD)
Courtesy of GENERAL MOTORS CORP.
Install the new oil pan gasket (2) into the oil pan groove.
Install the oil pan (1).

Fig 2: Oil Pan & Gasket (C/K/G/C3500HD)
Courtesy of GENERAL MOTORS CORP.
Install the oil pan bolts.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Tighten the oil pan bolts in sequence.
Tighten
- Tighten the oil pan bolts in sequence to 10 N.m (88 lb in) in a first pass.
- Tighten the oil pan bolts in sequence to 25 N.m (18 lb ft) in a second pass.
Fig 3: Oil Pan Bolt Tightening Sequence (C/K/G/C3500HD)
Courtesy of GENERAL MOTORS CORP.
Install the oil pan drain plug.
Tighten

Tighten the oil pan drain plug to 28 N.m (21 lb ft).
Install the oil level switch, if applicable.
Tighten

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

Fig 4: Oil Pan & Bolts (C/K/G/C3500HD)
Courtesy of GENERAL MOTORS CORP.