1999 Oldsmobile Cutlass engine cooling fan

1999 OLDSMOBILE CUTLASS
135,000 MILES • 6 CYL • FWD • AUTOMATIC
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RICHARD FINDLEY
  • MEMBER
  • 1 POST
the fan does not kick on when it suppose to at all. the only way it will turn on is when i unplug the thermostat sensor.
i replace all the relays and the thermostat sensor and tested the fan motors.
what should i do?
Apr 23, 2010 at 8:44 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Check the PCM. The temp sensor sends a signal to it and then it goes to the relay and to the fan. Also, make sure there are no damaged wires.

Let me know what you find.
May 19, 2010 at 9:45 AM