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 877 (ENGINE CONTROLS - 4.8L, 5.3L, AND 6.0L - REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSPOWERTRAIN CONTROL MODULE REPLACEMENTINSTALLATION PROCEDURE

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M

Installation Procedure

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Installation Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2001 GMC Yukon XL, 2001 GMC Yukon, 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, and 2001 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: PCM Mounting Hardware And Harness Connectors

Courtesy of GENERAL MOTORS COMPANY

Install the PCM (4) to the PCM mounting bracket (7) ensuring that the mounting tabs (3) are engaged.
Secure the spring latch (2) to the PCM.
Refer to FASTENER NOTICE in Cautions and Notices.
Connect the PCM connectors (6) to the PCM (4).

Tighten

Tighten the PCM connector end fasteners to 8 N.m (70 lb in).
Install the PCM cover (8) to the PCM mounting bracket (7), ensuring the mounting tabs on the PCM mounting bracket are engaged into the mounting holes in the PCM cover.
If a new PCM is being installed, program the PCM. Refer to Powertrain Control Module Programming (Offboard) , Powertrain Control Module Programming (Onboard) .

RENDER: 1.0x

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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.