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    Warm ac

    Hello I own a 1997 Mercury Grand Marquis LS my AC has been blowing hot and cold intermittently and I've noticed that the cooling fan is not working when the AC is on I'm going to test the fan with straight 12 volts to see if the motor is good but is there a fan switch temperature sending unit that I can test on this car or is it possibly just a bad fan motor and or a relay any answers would be a help thank you for any replies

    #2
    Turns out the head unit was bad

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