Installation Procedure

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

IMPORTANT: The crankshaft reluctor and the oil pump drive gear are timed at the factory. In order to re-establish proper timing, install knock pins in the oil pump drive gear if the crankshaft reluctor was removed from the oil pump drive gear. The knock pins are available through the parts department.

Fig 1: Identifying Proper Knock Pin Installation Position In Oil Pump Drive Gear

Courtesy of GENERAL MOTORS CORP.

Install the knock pins in the oil pump drive gear to a height of 4.5-5.5 mm (0.177-0.217 in)
Install the crankshaft reluctor on the oil pump drive gear. Ensure the reluctor is aligned on the knock pins.

Fig 2: View Of Crankshaft Reluctor & Oil Pump Drive Gear Bolts
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

Install the crankshaft reluctor bolts.
Tighten: Tighten the bolts to 8 N.m (71 lb in).

IMPORTANT: Do not damage the teeth on the crankshaft reluctor.

Fig 3: View Of Oil Pump Drive Gear

Courtesy of GENERAL MOTORS CORP.

Install the oil pump drive gear and reluctor to the crankshaft.
Install the oil pump driven gear.

Fig 4: View Of Oil Pump Driven Gear & Nut
Courtesy of GENERAL MOTORS CORP.

NOTE: 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.
While holding the secondary oil pump shaft with a hex driver, install the oil pump driven gear nut.
Tighten: Tighten the nut to 100 N.m (74 lb ft).
Install the upper oil pan. Refer to Oil Pan Replacement - Upper .
Install the engine front cover. Refer to Engine Front Cover Replacement .