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 CARSECTION 36 (ENGINE CONTROLS - BASIC DIAGNOSTIC PROCEDURES - 4.3L)C-4, BASIC IGNITION SYSTEM CHECKSHEI-EST DISTRIBUTORDISTRIBUTOR PICK-UP COIL SHORT & RESISTANCE CHECKS
1997 Chevrolet Chevy Express G3500, Van Cargo, 6.5 F
Distributor Pick-Up Coil Short & Resistance Checks
1997 Chevrolet Chevy Express G3500, Van Cargo, 6.5 FSECTION Distributor Pick-Up Coil Short & Resistance Checks
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 1996 Chevrolet Chevy Van, 1995 GMC Vandura, 1995 GMC Sonoma, 1995 GMC Safari, and 1995 GMC Rally. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect pick-up coil leads from module. Using ohmmeter, check pick-up coil resistance. Connect ohmmeter to distributor housing and either pick-up coil lead (step 1 in illustration). See Fig 1. Flex pick-up coil leads by hand to check fo r intermittent short to ground. If reading is not always infinite, replace pick-up coil.
- Connect ohmmeter between pick-up coil leads (step 2 in illustration). See Fig 1. Check for intermittent open by flexing wire s and connectors. If resistance is not 500-1500 ohms, replace pick-up coil.
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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.