Heater type hot air coming out of vents instead of cold air from air conditioning

Tiny
IFORMAN
  • 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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Friday, October 14th, 2011 AT 12:21 AM

6 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,398 POSTS

Is the AC compressor engaging?

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Friday, October 14th, 2011 AT 12:23 AM
Tiny
IFORMAN
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I really don't know, how do I check that?

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Friday, October 14th, 2011 AT 12:30 AM
Tiny
JACOBANDNICKOLAS
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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.

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Friday, October 14th, 2011 AT 1:01 AM
Tiny
IFORMAN
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I'll check it out tomorrow and get back to you, thanks

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Friday, October 14th, 2011 AT 1:14 AM
Tiny
JACOBANDNICKOLAS
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I'll look for your response.

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Friday, October 14th, 2011 AT 1:25 AM
Tiny
IFORMAN
  • MEMBER

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

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Friday, October 14th, 2011 AT 7:54 PM

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