1992 Pontiac Firebird cooling fan wont run

1992 PONTIAC FIREBIRD
133,000 MILES • 6 CYL • 2WD • AUTOMATIC
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BUCK31
  • MEMBER
  • 1 POST
i was wondering why my cooling fan isnt running, when i turn ac on or when it hits a certain degrees? I switched the relay with the ac compressor relay to see if it will work and nothing happened to help it. But when i plug my actron scanner into the DLC the fan runs to preform the test it has to run, so i dont have an idea?
Aug 21, 2009 at 7:05 PM
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JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
Hello, were there any codes? If you unplug the coolant temp sensor and turn on the key, does the fan run? A faulty cts could cause an issue? I'd have to check the circuits going to the relay.
Aug 22, 2009 at 11:33 AM
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