Ac blowing hot

Asked by Jun 14, 2016 at 05:59 PM about the 1998 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

My car 98 grand marquis is blowing hot air
even when it's put to cold . It use to blow cold if
battery was taken off but when switched to hot
air it won't switch back to cold ....could this be
the temperature switch or do I need a new
compressor n etc.

1 Answer

1,195

Is compressor turning? Look at clutch. Could be the pressure valve. Right out there when you can see it. Wires uplug, it unscrews. Also could be a a/c relay. Automatic climate control? or standard?

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