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 G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 205 (ENGINE CONTROLS - REMOVAL & INSTALLATION)COMPUTERIZED ENGINE CONTROLSPOWERTRAIN CONTROL MODULEINSTALLATION
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F
Powertrain Control Module: Installation
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Installation
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.
- Install the connectors to the PCM. Tighten the PCM connector screws to specification. See TORQUE SPECIFICATIONS . Install the PCM into the air cleaner assembly.
- Install the air cleaner assembly cover. Tighten the air cleaner assembly cover retainers. Position the front fender diagonal brace to the radiator support and to the inner fender. Install the bolts to the front fender diagonal brace at the radiator support. Tighten the front fender diagonal brace-to-radiator support bolts to specification.
- Install the bolts to the front fender diagonal brace at the inner fender. Tighten the front fender diagonal brace-to-the inner fender bolts to specification. Reposition the underhood wiring junction block to the front fender diagonal brace. Connect the negative battery cable.
- If a new PCM is being installed, program the EEPROM. See POWERTRAIN CONTROL MODULE under PROGRAMMING.
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.