Oil Pump Installation

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Oil Pump, Bolts & O-Ring

Courtesy of GENERAL MOTORS CORP.

Install a new O-ring to the engine block.
Lubricate the O-ring with engine oil.
Install the oil pump.

CAUTION: Refer to Fastener Caution .

Install the oil pump bolts and tighten to 21 N.m (15 lb ft).

Fig 2: View Of Oil Pump Drive Gear

Courtesy of GENERAL MOTORS CORP.

NOTE: Do not damage the crankshaft sensor reluctor teeth.

Install the oil pump drive gear and crank sensor reluctor assembly.

Fig 3: View Of Oil Pump Driven Gear

Courtesy of GENERAL MOTORS CORP.

Install the oil pump driven gear.

Fig 4: Removing/Installing Secondary Oil Pump Driven Gear

Courtesy of GENERAL MOTORS CORP.

CAUTION: Do not use an impact driver to remove or install the oil pump driven gear nut. Use of an impact driver may shear the oil pump drive gear pin in the crankshaft.

NOTE: Look for an "L" on the end of the oil pump shaft. If there is an "L" present, the nut and shaft have left hand threads. Service the nut accordingly.

While holding the secondary oil pump shaft with a hex driver, install the oil pump driven gear nut. Tighten the oil pump driven gear nut to 100 N.m (74 lb ft).