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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1998ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISSTARTING AND CHARGINGTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSCOMPONENT TESTING - IGNITION SYSTEMSPARK PLUG WIRE RESISTANCE CHECK
1998 Chevrolet Astro Van 2WD V6-4.3L VIN W
Spark Plug Wire Resistance Check
1998 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION Spark Plug Wire Resistance Check
TOOLS REQUIRED
J 39200 Digital Multimeter
1. Inspect the routing of the wires. Improper routing can cause crossfiring.
2. Inspect each wire for any signs of
^ cracks
^ burns
^ damage
^ splits in the wire
3. Inspect each boot for signs of
^ tears
^ piercing
^ arc through
^ carbon tracking
4. If the boot needs to be replaced, twist the boot a half turn in either direction in order to break the seal before pulling on the boot in order to remove the wire.
5. With the engine ON, inspect for any arcing to ground or other components.
6. Connect an ohmmeter to the end of each suspect wire. If the meter reads over 30,000 Ohms, replace the wire.
J 39200 Digital Multimeter
1. Inspect the routing of the wires. Improper routing can cause crossfiring.
2. Inspect each wire for any signs of
^ cracks
^ burns
^ damage
^ splits in the wire
3. Inspect each boot for signs of
^ tears
^ piercing
^ arc through
^ carbon tracking
4. If the boot needs to be replaced, twist the boot a half turn in either direction in order to break the seal before pulling on the boot in order to remove the wire.
5. With the engine ON, inspect for any arcing to ground or other components.
6. Connect an ohmmeter to the end of each suspect wire. If the meter reads over 30,000 Ohms, replace the wire.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.