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.
Check Harness
With ignition off, disconnect glow plug connectors at glow plugs. Squeeze sides of glow plug module protective cover and remove cover. Using an ohmmeter or test light, check continuity between each glow plug lead and test terminal of glow plug module. See Figure. If all leads check okay, go to next test. If any lead has an open circuit or is shorted to ground, repair or replace lead as necessary then go to next test.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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