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 MANUALSCHEVROLET1995SPORTVAN G20, 6.5 PREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 34 (ENGINE CONTROLS - REMOVE/INSTALL/OVERHAUL)POWERTRAIN CONTROL MODULE (PCM)CONTROL UNITREMOVAL
1995 Chevrolet Sportvan G20, 6.5 P
Control Unit: Removal
1995 Chevrolet Sportvan G20, 6.5 PSECTION Removal
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1994 GMC Vandura Special, 1994 GMC Vandura, 1994 GMC Rally Camper Special, 1994 GMC Rally, and 1994 GMC Forward Control. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect negative battery cable. Unplug connectors from PCM. See Figure. Remove PCM from vehicle. Remove PROM and CALPAC (if equipped) or MEM-CAL from PCM. See CALPAC , MEM-CAL , or PROGRAMMABLE READ-ONLY MEMORY (PROM) .
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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.