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 MANUALSCHEVROLET1997CHEVY EXPRESS G3500, VAN CARGO, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 23 (ENGINE CONTROLS - REMOVAL, INSTALLATION & OVERHAUL - 5.7L (G SERIES))IGNITION SYSTEMPOWERTRAIN CONTROL MODULE (PCM)REMOVAL
1997 Chevrolet Chevy Express G3500, Van Cargo, 6.5 F
Powertrain Control Module (Pcm): Removal
1997 Chevrolet Chevy Express G3500, Van Cargo, 6.5 FSECTION Removal
WARNING: This page is about a different variant/trim than selected.
Ensure ignition switch is in OFF position. Disconnect negative battery cable. Unplug electrical connectors from PCM. Remove PCM from vehicle. Remove access cover and remove knock sensor module from PCM.
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.