Engine Surging

1985 Renault 18I/Sportwagon L4-2165cc 2.2LSECTION Engine Surging

1. Defective ignition system.
2. Mechanical defect in engine.
3. Air intake system leaking.
4. Defective pressure regulator.
5. Cold start injector leaking.
6. Defective airflow meter.
7. Defective injectors.
8. Bad connection in wiring harness or bad ground.
9. Defective electronic control unit.



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.