Installation Procedure

WARNING: This page is about a different variant/trim than selected.

Install a NEW oil pump O-ring seal.
Install the oil pump.

Fig 1: View Of Oil Pump, O-Ring Seal & Bolt
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .
Install the oil pump bolts.
Tighten: Tighten the bolts to 21 N.m (15 lb ft).
Inspect the oil pump drive gear for wear.
Replace the oil pump drive gear pin if worn.
Install the oil pump drive gear and reluctor to the crankshaft.

Fig 2: View Of Oil Pump Drive Gear
Courtesy of GENERAL MOTORS CORP.
Install the oil pump driven gear.

Fig 3: View Of Oil Pump Driven Gear & Nut
Courtesy of GENERAL MOTORS CORP.
While holding the secondary oil pump shaft with a hex driver, install the oil pump driven gear nut.

Fig 4: Removing/Installing Secondary Oil Pump Driven Gear Nut While Holding Oil Pump Shaft
Courtesy of GENERAL MOTORS CORP.

Tighten: Tighten the nut to 100 N.m (74 lb ft).
Install a NEW oil pump screen gasket to the oil pump.
Install the oil pump screen.

Fig 5: View Of Oil Pump Pipe & Screen Assembly
Courtesy of GENERAL MOTORS CORP.
Install the oil pump screen bolts and nuts.
Tighten: Tighten the bolts/nuts to 25 N.m (18 lb ft).
Install the engine front cover. Refer to Engine Front Cover Replacement .
If the vehicle is a 2WD, install the flywheel housing. Refer to Engine Flywheel Replacement (Automatic Transmission) or Engine Flywheel Replacement (Manual Transmission) .
Install the upper oil pan. Refer to Oil Pan Replacement - Upper .