Cold Air only when moving

2005 MERCURY MONTEGO
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KENROSECAR
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Air Conditioning problem 6 cyl Front Wheel Drive Automatic 95,000 miles

Hi Boys,I maintain this car meticulously and drive it highway daily. Last week the battery died,got a jump and went to the dealer and they replaced the Battery. since then Ive noticed that when Im driving the auto temp is fine on the air conditioner but when I stop at a light it seems to blow warm air until I pick up speed again. No noises etc,just the AC isn't working properly when idle?
Oct 27, 2009 at 7:58 AM
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HMAC300
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It sounds like you have a low charge on the air conditioner, here are a couple of guides that will help you get the air conditioner working again.

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

and

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

and

https://www.2carpros.com/articles/how-a-car-air-conditioner-works

Please let us know what happens.

Cheers,
Dec 19, 2009 at 5:42 PM
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MERCURYMONTEGO2005
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During extreme heat ac will not get cold. It has the correct charge. Works great up to about 85 /90 degrees.
Apr 21, 2015 at 5:18 PM
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TYREE DESHAUNE SWEETS
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I'm having same problem but mine just started Yesterday help

Jul 30, 2017 at 1:57 PM
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STRAILER
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Hello,

It sounds like the ac compression has gone out or has weak seals. Here is a guide that will show you what you are in for when doing the job.

https://www.2carpros.com/articles/replace-air-conditioner-compressor

and

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Diagram (below)

Please let us know what happens.

Cheers, Ken
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Jul 31, 2017 at 12:31 PM