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 MANUALSRENAULT198318I 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETUNE-UPIGNITION SYSTEM - NON-TURBOTESTINGTESTING SYSTEM WHEN ENGINE WILL NOT STARTSPARKING TEST
1983 Renault 18i 4D Sedan, Automatic
Sparking Test
1983 Renault 18i 4D Sedan, AutomaticSECTION Sparking Test
- Turn ignition switch to "ON" position. Remove distributor cap. Disconnect the high tension coil wire from distributor and hold it approximately 1/4" from a good ground. Ground should be as far away as possible from the ignition coil and electronic control unit.
- Move a magnet in a spiral motion over impulse sender stud. A spark should jump from the gap to ground as magnet passes over coil.
- If spark occurs but engine will not start, problem is in distributor cap, rotor, spark plug wires or fuel system. If no spark occurs, proceed with component checks.
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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.