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Old 06-13-2013, 10:44 AM   #1
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I'm new on the forum and have some A/C questions

Symptoms when cool outside,mornings evenings cools very well,probe in vent reaches 42-46 degrees but if I speed up,tempature goes up and blower warmer air.At high speeds less cooling.
During 12-7Pm probe will not get below 54-64 and does best at slower speeds.
Air tempature fluxuates.

I had it sucked a refilled to proper specs.

I'm tempted to buy every major part for A/C and start with new components.

Dealer that sells many Focuses says it sounds like compressor,but if more air is going over condenser is causing temp to go up,could it be the culprit.

I could try one component at a time but it must be sucked,filled with oil,the refilled and there goes another day.
I'm at wits end and am thinking of just replacing compressor,Dryer,condenser and Expansion device.

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Old 06-13-2013, 03:42 PM   #2
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Have heard a lot of complaints from Mustang owners about this in recent years.

check over on Stangnet and do a search.
2009 Ford Focus Coupe SES -- What I don't know about modern cars would fill up a good sized country, but what I don't know about 50's and 60's Ford engines, would fill up a 4 oz glass.
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Old 06-13-2013, 07:10 PM   #3
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Funny I have same problem in my ford escape
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Old 06-14-2013, 05:36 AM   #4
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How about low refrigerant. Get some gauges. What's happening is that you are at say 35 psi on the low side at idle, but when you speed the engine and compressor up- it drops below 23 psi which cuts off the compressor to prevent ice from collecting on the evaporator. Then you get warm air until you slow down. You might not even feel the compressor kicking in and out while you're driving at higher speeds. If you get a full set of gauges, check the high side also (but not at the same time unless you have really expensive gauges) and see what pressure the compressor is pumping up to. If it's not over 200 psi, then yes, you might have a bad compressor.

Yeah, they'd like to blame it on the compressor and charge you $1500 for the repair. I know, I had a friend who took a Volvo in for AC repair- $1100 later it was fixed. It's a good thing he's a lawyer and can afford it.
Be eclectic.
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