Oil Pump Assembly Installation: Installation

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

Fig 1: Installing J 25025-1

Courtesy of GENERAL MOTORS CORP.

Install the J 25025-1 .

Fig 2: View Of 39855-2

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Remove the J 39855-2 which is part of kit J 39855 . See Special Tools .

Fig 3: View Of Pump To Drum Thrust Washer

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Install the pump to drum thrust washer (601).
Use J 36850 or equivalent to retain the washer to the pump. See Special Tools .

Fig 4: View Of Pump Cover, Case & Gasket

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Install the pump cover to case gasket (6).

IMPORTANT: The oil pump to case seal is installed after the oil pump assembly, during torque converter installation. Refer to Converter Housing Installation .

Install the oil pump assembly (4) into the case and align all holes properly.

Fig 5: View Of J 25025-1

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

IMPORTANT: The pump to case bolt O-ring seals (3) must be replaced.

Install the pump to case bolts (2) with new O-ring seals (3).
Tighten: Tighten the bolts to 29 N.m (21 lb ft).
Remove the J 25025-1 .

Fig 6: Locating Pump To Case Bolts & O-Ring Seals

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Install the remaining pump to case bolts (2) and O-ring seals (3), in the holes where the J 25025-1 were.
Tighten: Tighten the bolts to 29 N.m (21 lb ft).