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Home >> Chevrolet >> 2000 >> Metro Base, 2D Hatchback >> Repair and Diagnosis >> Engine Mechanical >> Cooling Fan >> Engine Cooling Fan System - Troubleshooting >> Electric Cooling Fan Circuit Diagnosis >> 2.2L & 2.4L Cavalier & SUNFIRE >> Cooling Fan Always On

Cooling Fan Always On

  1. If diagnostic system check has not been performed, see DIAGNOSTIC SYSTEM CHECK . If diagnostic system check has been performed, go to next step.
  2. Turn ignition on, engine off. If engine cooling fan runs all the time, go to next step. If engine cooling fan does not run all the time, problem is intermittent.
  3. Remove cooling fan relay. If cooling fan turned off, go to step  5. If cooling fan did not turn off, go to next step.
  4. Repair short to power in cooling fan motor supply voltage circuit (Light Blue wire). After repairs, go to step  7.
  5. Check cooling fan relay for poor connections. If problem was found, repair as necessary. After repairs, go to step  7. If problem was not found, go to next step.
  6. Replace cooling fan relay. After repairs, go to next step.
  7. Operate system to verify repair.
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