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 PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 939 (ENGINE CONTROLS - 6.6L - REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSFUEL INJECTION PUMP REPLACEMENTPREPARING FUEL PUMP
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Preparing Fuel Pump
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Preparing Fuel Pump
WARNING: This page is about a different car, the 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, 2001 Chevrolet Silverado, and 2001 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Hold the fuel pump by the drive gear in a vice with copper jaw liners.
- Loosen the gear nut until the nut is even with the end of the gear shaft.
- Remove the gear from the tapered shaft of the pump.
- Separate the pump and adapter by removing the three bolts and spacers.
- Inspect the O-ring for damage on pump adapter and replace, if necessary. Lubricate the O-ring with clean engine oil.
- Clean all mating surfaces.
- Install the adapter on the pump.
- Refer to FASTENER NOTICE
in Cautions and Notices.
Using the three bolts and spacers, reassemble the pump.
Tighten
Tighten the bolts to 20 N.m (15 lb ft).
- Install the gear and nut.
Tighten
Tighten nut to 70 N.m (52 lb ft).
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.