Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 428 (ENGINE MECHANICAL)REPAIR INSTRUCTIONSON-VEHICLE REPAIR INSTRUCTIONSOIL PUMP REPLACEMENTINSTALLATION PROCEDURE

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Installation Procedure

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Installation Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Important: Rotate the oil pump driveshaft as necessary in order to obtain the engagement with the oil pump drive.

Install the crankshaft oil deflector.
Install the crankshaft oil deflector nuts.
Tighten

Tighten the nuts to 25 N.m (18 lb ft).

Fig 1: Installing Crankshaft Oil Deflector - Oil Pump Replacement
Courtesy of GENERAL MOTORS CORP.
Install the oil pump and oil pump drive shaft.
Install the oil pump bolt.
Tighten

Tighten the oil pump bolt to 41 N.m (30 lb ft).
Install the oil pan. Refer to OIL PAN REPLACEMENT .

Fig 2: Installing Oil Pump And Oil Pump Drive Shaft
Courtesy of GENERAL MOTORS CORP.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.