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520Talon · 12-02-2003

I would guess it would have to be the thermostat as well. At least one fan should come on with the AC or defrost though.

I say you should just hard wire them to a switch in the dash with a relay wired up to the ignition so you can't leave them on when the cars off.

As far as the 30 deg temp swing, I have the same thing on my GMC van when I sit a lights it will drop to 170-180. It sits at a solid 205 except towing up long grades, then it might creep. Maybe change out the termostat while your at it.

12-02-2003	#3
520Talon Join Date: Oct 2003 Posts: 350	I would guess it would have to be the thermostat as well. At least one fan should come on with the AC or defrost though. I say you should just hard wire them to a switch in the dash with a relay wired up to the ignition so you can't leave them on when the cars off. As far as the 30 deg temp swing, I have the same thing on my GMC van when I sit a lights it will drop to 170-180. It sits at a solid 205 except towing up long grades, then it might creep. Maybe change out the termostat while your at it.