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post #1 of 8 (permalink) Old 09-21-11, 06:19 PM Thread Starter
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Cooling fan issue?

My tbird overheats while stationary, I have flushed the system,installed new rad, new thermostat, water pumP and reservoir cap, still overheating, my fan will not kick on by itself but when I turn my ac on it will run,, any help would be greatly appreciated

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post #2 of 8 (permalink) Old 09-22-11, 02:43 AM
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Re: Cooling fan issue?

Dont know if this might help you with wiring diagram etc.



1997 Ford Thunderbird Problem Cooling Fan
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post #3 of 8 (permalink) Old 10-11-12, 11:39 PM
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Re: Cooling fan issue?

Make sure the fan is getting power, if so the motor is probably bad. Mine went out and I was able to replace it with a new one from NAPA for right around $100 The one from NAPA includes the fan and motor, easy out and in.
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post #4 of 8 (permalink) Old 10-12-12, 03:18 PM
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Re: Cooling fan issue?

If it's kicking on with the AC, then the fan functions, but the PCM is not getting the temperature of the coolant. Try changing the coolant temperature sensor.

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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post #5 of 8 (permalink) Old 05-31-14, 08:40 AM
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Re: Cooling fan issue?

If I remove the wire from the coolant temp switch can I use a paper clip and jump the wire connections and make the fan come on? This should be a indication that I have the correct sensor and it is defective....correct? This is what I did and the fan did not come on. However it comes on when I turn on the AC. Can't find a fuse for it. None of my fuse boxes are marked and I have no manual.
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post #6 of 8 (permalink) Old 05-31-14, 07:13 PM
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Re: Cooling fan issue?

It's not a switch, it's a sensor, It sends a signal that is proportional to the actual temperature of the coolant. To check the fan operation, you'll have to jump across the normally open contacts in the relay socket, taking care that you don't jump out the the points for the coil in the relay.

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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post #7 of 8 (permalink) Old 06-01-14, 12:51 PM
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Re: Cooling fan issue?

Can you tell me where the relay is for the fan? I can't find any bad fuses. I can put a new relay in to see if that works but I need to know where it is. My dash temp gauge does work.
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post #8 of 8 (permalink) Old 06-01-14, 06:20 PM
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Re: Cooling fan issue?

Follow the link supplied by R.S.Logan, it tells you where to find the relays.

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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