Mechanics

HEATER TYPE HOT AIR COMING OUT OF VENTS INSTEAD OF COLD AIR FROM AIR CONDITIONING

2008 Mercury Marquis • 40,000 miles

Hot air depending on the temp setting, very hot at 90 degree setting and medium hot as I lower the setting but NO COLD AIR. Blower blows OK. It appears the A/C settings are completely ignored.
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Iforman
October 14, 2011.



Is the AC compressor engaging?

I really don't know, how do I check that?

Tiny
Iforman
Oct 14, 2011.
When you turn the ac on, with the engine running, open the hood and watch the compressor clutch (on front of compressor pulley). You will hear a click and see the center of the clutch spin.

I'll check it out tomorrow and get back to you, thanks

Tiny
Iforman
Oct 14, 2011.
I'll look for your response.

Hi, I checked the compressor wheel and when I turn on the a/c the front compressor wheel does start to turn.

Tiny
Iforman
Oct 14, 2011.