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 MANUALSCHEVROLET1987CHEVY VAN G20, 6.2 C, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEADJUSTMENTTUNE-UP - V6ADJUSTMENTSIGNITION COIL
1987 Chevrolet Chevy Van G20, 6.2 C, Automatic
Ignition Coil
1987 Chevrolet Chevy Van G20, 6.2 C, AutomaticSECTION Ignition Coil
- Disconnect all electrical connections from coil. Connect an ohmmeter at connection A. See Fig 1 . Reading should be infinite. If reading is not infinite, replace coil.
- Connect an ohmmeter at connection B. See Fig 1 . Using low scale, reading should be very low or zero. If reading is not low or zero, replace coil.
- Connect an ohmmeter at connection C. See Fig 1 . Using high scale, meter should show continuity. If reading is infinite, replace coil. Connect all coil connections and ensure coil ground is clean.
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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.