Lower Oil Pan Installation

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Determining Sealant Bead Dimensions

Courtesy of GENERAL MOTORS CORP.

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.

Fig 2: View Of Lower Oil Pan & Bolts/Nuts

Courtesy of GENERAL MOTORS CORP.

Install the lower oil pan.

Fig 3: Lower Oil Pan Bolts Tightening Sequence

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice

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

Fig 4: View Of Oil Level Sensor Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Connect the oil level sensor.