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Climate Control Problems (Air Conditioning, Heat) - All Cars

791 messages, Last post on Aug 12, 2009 at 12:55 PM
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Replying to: rockindubya (Jun 13, 2009 8:53 am) |
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Replying to: rockindubya (Jun 13, 2009 8:53 am) |
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| The A/C blows out of the defrost vent only even though I select the front vents. why is this happening | |
| Ok, hear goes.. I am not vehicle inclined at all. But I can give good discriptions on what is going on. My a/c was working great, then one day when I turned it to high #5 it would be off, then when I turned it to #1 it was high. They were VISSA VERSA Backwards( It has #s' Off & then 1-5) When I would turn it to off it would not turn off. Now around the 2nd or 3rd day, it all just stopped working. The light is lit wear it says air, and It is NOT blowing though. When I turn on differant #'s low to high I do not hear it change over, but when I turn the vents to come out on top, or the front vents, or the floor, I can hear the engine like change over.( Not sure if that is what I call it Sorry but like it wants to work, no loud noises regular noises) But get this, when I try to turn it to heat, the heat is NOT even coming on. This is strange, It was never ever making noices like a motor was going out or anything. I need air.. It is so hot. Thanks anyone who has any ideas.. | |
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I have a 1997 Chrysler Cirrus. a/c has worked fine all these years and has never had any service. This year I notice that it is not blowing as cool as before. It takes 10 miles or 20 minutes before the car feels like it is getting cooler. I'm thinking that it needs a recharge since it does cool to some extent. If the compressor was shot it would not cool at all. Also, if I had a major leak in the system all the r-134 would leak out and I would not have any cooling either. Any opinions?
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Replying to: oldfarmer50 (Jul 12, 2009 3:33 pm) My 1998 car got light on cooling a couple summers back. If the heat load wasn't great, it seemed to cool okay; but as the heat load increased during the day, it just felt insufficient. I added freon up to the max based on the colors on the gauge--still within the green, e.g. Put a fan in front of the radiator and run the motor at about 1500 and just start adding. |
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Replying to: oldfarmer50 (Jul 12, 2009 3:33 pm) You could buy a couple of cans of R-134a at Checkers along with a refill valve. Just make sure you connect it to the low pressure side. I've seen people do this indefinitely until a catastrophic failure occurs either by corrosion on the evaporator core or disintegration of the compressor causing it to lock up. Since this is a 1997 vehicle and it still cools, I'd say you got your value out of the A/C and only you know if it would be worth repairing. A local shop could test for the R134a with a sensor that detects leaks and if its microscopic they can always use a can of R134a with dye in it. I'd bet you've got a small leak in the evaporator core since back in the 90s Amercian cars didn't come with those cab filters and the evaporator core gets trashed.
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Replying to: obyone (Jul 13, 2009 1:14 am) BTW, I called the coolant r-134. Is that the old Freon coolant? My owners manual says I have the newer non-Freon system. Am I using the wrong terms?
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Replying to: oldfarmer50 (Jul 13, 2009 2:40 am)
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Replying to: obyone (Jul 13, 2009 3:16 am) I've got a 12 oz can of R12 in the garage. I'm waiting for it to go high enough to fund my kid's college education. The R134a was only needed because the patent for DuPont ran out on R12. The idea that it was ruining the environment is not correct. Same with claritin being replaced by clarinex by the drug company; the patent was running out and now you can buy claritin over the counter. A little R134a will almost certainly be cheaper than replacing a larger item in the AC system. While the environment folks had us worrying about R12 and feeling guilty, the rest of the world was/is releasing R12. So I'd have the shop check for a noticeable leak (not likely or you'd be empty) and refill occasionally. If it were my GM I'd say it seeps around the compressor seals and 10 years was needed to drop enough to be noticed. |
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