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 204 (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 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The following areas must be inspected before installing the PCM. Ensure there is no debris in the air filter/PCM housing assembly, or in the MAF/IAT sensor inlet screen that may distort the air flow. Ensure there are no signs of damage to the air filter/PCM housing assembly, or to the intake air duct. If a problem is found, replace the component as necessary.
- Install the PCM. Install the PCM connectors. Tighten the PCM connectors screws to specification. See TORQUE SPECIFICATIONS . Install the intake air duct, the MAF/IAT sensor, and the air filter/PCM housing cover to the throttle body. Tighten air filter/PCM housing cover screws to specification.
- Ensure the intake air duct is installed properly on the throttle body. An improperly installed or distorted damaged air filter, or intake air duct may cause a DTC to set. Align and engage the tabs on the air filter housing cover with the slots in the air filter/PCM housing.
- Tighten the air filter housing cover screws to specification. Tighten the intake air duct clamp at the throttle body. Reconnect the MAF/IAT sensor connector. Connect the negative battery cable. Install the rear seat cushion.
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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.