Chevrolet Silverado / GMC Sierra. Service manual — part 644

Fig. 104: Determining Sealant Bead Dimensions
Courtesy of GENERAL MOTORS CORP.

1. Apply a 2-3 mm wide by 0.5-1.5 mm high bead of GM P/N 12378521 (Canadian P/N

88901148) sealant to the lower oil pan mating surface.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 105: View Of Lower Oil Pan & Bolts/Nuts
Courtesy of GENERAL MOTORS CORP.

2. Install the lower oil pan.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 106: Lower Oil Pan Bolts Tightening Sequence
Courtesy of GENERAL MOTORS CORP.

3. Install the lower oil pan bolts and nuts.

NOTE:

Refer to Fastener Notice

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Tighten: Tighten the lower oil pan bolts and nuts in sequence to 10 N.m (89 lb in).

Fig. 107: View Of Oil Level Sensor Electrical Connector
Courtesy of GENERAL MOTORS CORP.

4. Connect the oil level sensor.

EXHAUST PIPE INSTALLATION - LEFT SIDE

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado