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Coolant Fan 1990 Olds 88 Royale

Tiny
GRANDPRIXGUY
  • MEMBER
  • 1990 OLDSMOBILE
When the motor gets Hot the coolant fan is suppose to kick on to cool down the radiator correct?

Now my Fan does not come on at all. I have replaced the fuses and the relays and check the wiring also replaced upper and lower radiator hoses and radiator that were bad. Plus replaced thermostat. I also replace the fan itself. Now I thought I fixed the problem but nope fan still won't turn on to cool the radator.

But the Fan does kick on when I put on the A/C

Help me out here why does this Fan not come on when it gets HOT?

I am Confused here!
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Saturday, September 29th, 2007 AT 7:47 PM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Sorry to give you the bad news, but if you've changed all that the only 2 parts left are the electronic coolant temp sensor(ECT) and the computer(PCM)! Go with the ECT first. It's MUCH cheaper than PCM!
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Saturday, September 29th, 2007 AT 8:19 PM
Tiny
BIGDOGGTIM
  • MEMBER
  • 1 POST
I am having the same problem with a 1994 Saturn 1.9L 16V SC2.I want to know how to run some new wires so the fan will come on. Like to the positive on the battery or something.
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Saturday, September 29th, 2007 AT 8:27 PM

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