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Old 12-28-2002, 23:43   #1 (permalink)
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Air conditoiner problems.

I dont know if my air condition is working properly in my XR8, yesterday I took the car out all day and had the air on it seemed to work alright then at about 2 o'clock the car sat in the sun for an hour ,back in the car driving again and took a while to cool down (all of this driving is HWY driving) then when I slowed to about 70 the air went to a nice chill, then stopped for an hour parked in the shade ,back on the road again and the air seemed to struggle it was like warm air blowing I thought that driving for 45 mins on the Hwy it would cool down but it was like warm outside air still. I have noticed this has happended a few times while driving .I have the fan switch on 4 and the vent switch on the symbol with circular arrows as the manual says the outside temp was about 36.the car is only one and a half years old.
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Old 12-28-2002, 23:59   #2 (permalink)
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We had the same problem with the AU2 Fairmont, one day it just wouldnt get cold no matter how hard we tried to make it. I dunno if its a problem or if it just a one off thing.
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Old 12-29-2002, 00:55   #3 (permalink)
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I have a similar problem in my AU2. Are you letting the heat out of your car?????????????? My car will sit for about 8 hours in the sun while i'm at work & even on a 40 DEG. day i'll drive the first 10mins (moving, not idle) with the windows down & the fan going to remove the heat from the car & in the dashboard. Then i put the windows up, the A/C on, the fan on 4 & vent on recirculate. After about 10 mins i'll put the fan on 2 because it's too cold. Try that.

Cheers, Adrian.
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Old 12-29-2002, 01:11   #4 (permalink)
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Thank's for your responses guy's and Adrain I did leave the windows down but not for that long ,I'll give it a go and see Thank's guys.
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Old 12-29-2002, 20:06   #5 (permalink)
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What you can do when it doesn't seem to be very cool is to stop and get out and look under the bonnet to check the compressor is actually working.To check this if you look at the front pulley on the compressor,the front centre section should be turning with the pulley section where the belt runs. If there is real high or low pressure in the a/c system the clutch won't engage...Also if the prob is intermittent it could be a fault in the TX valve which restricts the flow of refrigerant ,hence no cooling.A gentle tap on the tx valve if the air is not cool might show a prob there..
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Old 12-30-2002, 18:59   #6 (permalink)
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if its an AU, id put my money on the orifice valve being blocked.

The orifice replaces tx valve and is found on the low pressure pipe (suction) that goes through the firewall. Its the big pipe.

You have to let the gas out of the system, fit new valve, top up a.c oil, replace o-ring on fitting and regas system.

The au's have had a lot of trouble with these orifice valves blocking up. there is actually alloy getting into the system, which IMO is coming from the compressor not having enough oil and being overgassed at the factory, but thats just my opinion.
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Old 01-03-2003, 15:08   #7 (permalink)
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Do you hear the compressor "clicking" on ad off?
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Old 01-04-2003, 21:29   #8 (permalink)
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Guys I just took the car for a drive and it worked fine then on the way home it only blew warm air again.

I pulled over and had a look and seen that the front half of the compressor was not spinning. I then turned it off drove for a little while, turned it back on and had a look and the front half of the compressor was spinning, and the air conditioner was working.

Thanks gregaust, looks like you were right. Any idea's on how to fix this problem ?
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Old 01-04-2003, 22:01   #9 (permalink)
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Ok ,i would say you either have high or low pressure which is cutting out the compressor.Does your car have electric fans for the rad and do they come on with the a/c...If not it could be high pressure..Also if there is a prob with the tx or orifice valve as mentioned above depending on what type you have ,if this is faulty it would cause a restiction in the system and high pressure also..
Maybe time to get someone to hook up some a/c gauges and see whats happening exactly..
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Old 01-12-2003, 02:16   #10 (permalink)
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Well guy's took the car to Ford yesterday and all that seemed to be wrong was not enough gas or low presure, Topped up and took it for a little drive and so far so good it get's real cool straight away even if it's been in the sun for a while,I dont know wether it was not filled up enough from factory or not because the cars only 1.5 years old,but I'll keep an eye out and hope theres not a leak.
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