1992 Pontiac Firebird cooling fan wont run

Tiny
BUCK31
  • MEMBER
  • 1992 PONTIAC FIREBIRD
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 133,000 MILES
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?
Friday, August 21st, 2009 AT 7:05 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
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.
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Saturday, August 22nd, 2009 AT 11:33 AM

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