Oil Pan Installation

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

Apply a 3 mm (0.12 in) bead of sealer GM P/N United States 12378521, GM P/N Canada 88901148 to the block.

Fig 1: Applying Sealer To Block
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: The oil pan must be installed within 10 minutes from when the sealer was applied.
Install the oil pan.
Install the oil pan bolts.

Fig 2: Installing Oil Pan Bolts
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: When installing the oil pan, it could be shifted front or back a little which could cause a transmission alignment problem. The back of the oil pan needs to be flush with the block.
Check the oil pan alignment. Use a straight edge on the back of the block and oil pan (transmission mounting surface).

Fig 3: Checking Oil Pan Alignment

Courtesy of GENERAL MOTORS CORP.

Tighten the oil pan bolts.
NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Tighten
- Tighten the (side) oil pan bolts to 25 N.m (1 lb ft).
- Tighten the (end) oil pan bolts to 10 N.m (89 lb in).
Install the oil level sensor.
Install the oil level sensor bolt.
Tighten

Tighten the oil level sensor bolt to 10 N.m (89 lb in).