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.
System Spark Test
- If starter turns but engine will not start or if engine fails to develop sufficient power), hold distributor end of coil wire about 3/8" (10 mm) from engine block. Crank engine. See Fig 1.
Do not use this test on Mercedes-Benz models.
- If spark jumps gap, check distributor cap, rotor, cables and spark plugs. Be sure ignition timing and fuel system are OK. If no sparks occur, perform the following tests.
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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