Testing air conditioning - Ford Mustang Forum
 
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post #1 of 2 (permalink) Old 06-14-2010 Thread Starter
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Testing air conditioning

The A/C condenser was replaced on my '08 GT last fall after an impact with a tire carcass on the road. It seemed to only have bent fins, but the insurance company wanted to replace it in case it had been weakened or something...the A/C was working fine at the time. So, now we have 90+ humid days and, perhaps in paranoia, it doesn't "seem" to be a cooling as well as it was. The dealer checked it (put a thermometer in the center vent) and it was cooling 20 degrees below ambient. Is that the spec on these cars? I thought 30 degrees below was what you would expect.

=Vic=

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post #2 of 2 (permalink) Old 06-14-2010
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Quote:
Originally Posted by beargap View Post
The A/C condenser was replaced on my '08 GT last fall after an impact with a tire carcass on the road. It seemed to only have bent fins, but the insurance company wanted to replace it in case it had been weakened or something...the A/C was working fine at the time. So, now we have 90+ humid days and, perhaps in paranoia, it doesn't "seem" to be a cooling as well as it was. The dealer checked it (put a thermometer in the center vent) and it was cooling 20 degrees below ambient. Is that the spec on these cars? I thought 30 degrees below was what you would expect.

=Vic=
R134 is rated to cool up to 35 degrees below ambient max. A 20 degree drop is a little anemic. I would say you may have a leak in the system that has slowly released coolant over the winter months. Have it checked out. I bet you have a bad seal(s). Could just need a charge too considering I don't know who replaced your A/C unit.


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