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 MANUALSCHEVROLET1998EXPRESS 1 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMSPARK PLUGSERVICE AND REPAIRSPARK PLUG WIRE RESISTANCE
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN R
Spark Plug Wire Resistance
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN RSECTION Spark Plug Wire Resistance
TOOLS REQUIRED
J 39200 Digital Multimeter
1. Disconnect both ends of each spark plug wire YOU are testing.
Ensure that the wire terminals are clean before proceeding.
2. Use the J 39200
3. Connect an ohmmeter lead to each end of the wire.
4. Gently twist the wire while watching the ohmmeter reading.
5. It the ohmmeter reads above 30,000 ohms, no matter how long the wire is, or fluctuates from infinity to any value, replace the wire.
J 39200 Digital Multimeter
1. Disconnect both ends of each spark plug wire YOU are testing.
Ensure that the wire terminals are clean before proceeding.
2. Use the J 39200
3. Connect an ohmmeter lead to each end of the wire.
4. Gently twist the wire while watching the ohmmeter reading.
5. It the ohmmeter reads above 30,000 ohms, no matter how long the wire is, or fluctuates from infinity to any value, replace the wire.
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.