Passat (B5) :: 2005 - AC Malfunction / Blow Hot Air And Sometimes Cold
May 4, 2009
2 weeks ago my ac on my 2005 passat started working on and off, sometimes it would blow hot air and sometimes it would blow cold air. I took it to an independent shop (which we trust, they been working on our cars for a long time and never been ripped off...but first time I've taken a Volkswagen to them) and they just did an AC diagnostic test and re-filled the Freon, replaced the filter...it worked for 1 hour and went back to blowing hot air again, so I took it back and they said a valve stem was loose, causing the AC to work sometimes and not others, so they replaced that with a new one, my AC worked for 4 days...than on the 5th day it blew hot air again.. What could possibly be causing this??? It is stressing me out, especially since I need AC in hot Houston summer weather.
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The a/c on my '05 Camry still puts out cool air, but not really cold anymore. I compare with my '08 Highlander that can still freeze your arms off in no time. We have had a warm spell lately, which is supposed to continue for another week, and while the Camry is putting out enough to eventually cool the air, it's just not up to it's usual standard. Are these a/c systems supposed to be sealed, and if so, is a leak the most likely reason ? I have not had it serviced in the past 3 years I've owned it. Is it worth it to try the "do-it-yourself" canned a/c service bottles or should I get the system pressure checked out first ?
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I'm at the end of my rope! My 2005 Ford Five Hundred Limited has a constant problem with the A/C system and overheating. In the last year I've replaced the compress, expansion valve, dryer FOUR times. They have replaced the condenser, blower motor, and added Freon, and checked for leaks. It will blow cold when running fast and then blow hot. They have replaced belts pulleys, They have replaced the thermostat, fans, coolant reservoir, hoses. and it still overheats. I've taken it to 4 difference mechanics including two dealerships. No one can seem to fix this problem.
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When I turn on the air conditioning, the driver's side works well, but the passenger's side vents blow warm air. What could this mean and could I fix it from home?
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So, my A/C in the 2005 doesn't blow cold. It blows, just not cold.
The dealer recommended doing an evac/recharge, which, from what i understand, is there way of finding out where I have a leak.
I took it to my local shop, since the dealer wanted a lot of cash to do this. After having my car in their lot all day, the local fellows called me to say that they couldn't do any recharging/service on my A/C since the coolant is something only the dealer can get (which is a special kind of coolant with special lube in it, right?).
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My 2005 ranger will blow hot air with the cab temperature control is on cold or hot. The A/C works only when it is on Max AC. What the problem may be.
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My a/c is not blowing cold. I checked the system and I went to the a/c shop, they recharged the system. Compressor starts and then it becomes tricky. On other Passat I checked, all a/c pipes get cold right away and stay cold as long as the a/c works. On this vehicle, all pipes become cold for 1-2 seconds after starting a/c. Then pipes shown in red gradually get back to room temperature, while only blue section remains VERY cold.
Apparently, the limit between hot and cold is, on the left pipe, the valve that is used to recharge the system.
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I've got a '06 passat. The a/c was working fine one day, and then the very next day it just stopped. the a/c light comes on when I push the button for it, but it won't blow cold air. I'm not sure if this is a common problem on passats or what's going on.
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I just replaced two bad sensors, (bank 2, both sensors). I went through three cold start ups, and the autozone codes still claim the sensors are rubbish.
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History - So my A/C was going out about 6 months ago. It would come in and out with cold air until eventually it just stopped all cold air and was only hot. Then the control knobs broke. I took it in and they told me I had to replace the control unit and that would fix all the issues. Well I got it back and the A/C was still blowing hot air (even though the knobs were now working).
So I took it back in and they said they couldn't find anything wrong and it must be this hairline crack that was leaking freon. they said they couldn't find the crack but loaded it up with freon and said i would have to 'wait it out' could be years could be a few weeks, they just didn't know. well, it worked for awhile but here i am in 102 degree heat and when I turn on the A/C in the really hot car the passenger side quickly blows cold air and the driver side takes about 20 minutes before it finally gets cold. What gives? I do not have dual temperature controls.
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I am having a slight issue with my car. When turning on the air conditioning, the car does not blow anything at all when at idle. You don't hear any fan, nothing. But when the car is moving, and the dial is in air conditioning mode, it does vent cold air. There is also a bit of a compromise and fluctuation in power when the dial for air conditioning is on. Other information related to the topic is that when I check outside my car, the fan for the car is running when I run the air conditioning, and it does leak just a little bit of water when the air conditioning is on too.
I am wondering if it needs a recharge, or a new condenser / compressor. I may post a video of the problem as early as tomorrow.
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I have a 94 ford Taurus all of a sudden my ac doesn't blow cold and my heat doesn't blow hot. Also every now and again I hear a sound like an alarm clock coming from passenger side??
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I have a '97 Honda Civic w/ about 168k miles, am hoping to get at least another year or two out of it before I go looking for a used Honda Fit or something similarly budget-minded to replace it. I just ran the A/C on cold for the first time this season (I realize I was running it all winter when I defrosted the windows), and it was clearly not working, just blowing hot air. Now, the last time I had anything done with the A/C was in 2005, when I was in a minor accident and the very nice mechanic flushed it and replaced the freon (if I have that right) for no extra charge in the course of uncrumpling the front of the car for me.
Which brings up two issues:
1) I no longer have a trustworthy mechanic where I live, and have had much difficulty finding one, and
2) the car already has a salvage title so is worth about $500 max.
Now, obviously it is worth more than that to me, since it will still be cheaper to fix than get anything else, but I have the impression that A/C repair could get quite expensive, and it is enough to make me wonder if I could afford the monthly payment and insurance increase on that used Honda Fit..
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My 2005 Prius is having a problem with the AC. It will only blow cold air if the temp is set at MAX COLD. Any other temp setting and it will blow hot air. Really hot air. It makes no difference what the outside or inside temps are. Is there a simple fix for this? I can control the AC by setting it on Max Cold and changing the fan speed, but I would like for it to work on the auto setting the way it is supposed to.
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I can't seem to get the engine temp to middle range on the marker, but yet my heater blows "to me" hot air. Even while sitting in idle for extended amounts of time I cannot get it to "operating" temperature. I would think if my thermostat was stuck open my heater would blow either cold or slightly warm air. I have the 5.4L engine with knn air filter and no cats.
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I have a manually operated air conditioner. On cool days it seems to be working, but on hot days, after sitting for a while it can take 15-20 minutes for my air to come on after starting the car. It then stays cool for about 10 minutes and slowly transitions to warmer air and sometimes back to cool. I've had the freon checked and topped off, but that has not solved the issue.
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The A/C hasn't been working for a month now, won't blow cold air. Took it to the shop and they put 1.5 pounds of freon in it. But it still won't blow cold. I'm taking a 1200 mile trip in it soon and the shop isn't an option. There's no leak as of now. What to do?
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A few weeks ago, I bought a new condenser, compressor, evaporator, expansion valve, ac line for my 2010, 200000 mile Prius and had them installed by a dealership. They weren't too happy about my independent purchase of parts , but they did the job.. After a few days, there was no longer cold air. The dealership is 1000 miles from where I live. They are willing to start over again, for free, and see where the leak is but I can't travel to there for awhile, and, already the heat is oppressive in the middle of the day. I asked the local dealership if they would run a test of the system which will be a bit expensive, and they agreed. But, they cannot guarantee that the test will be conclusive. After almost 3000 dollars spent on this, I really do not know where to go from here.
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I have a 2007 Ford Freestyle and last summer the A/C would only blow cold air when you would accelerate. If you were idling like at a stoplight it would blow warm air. I bought one of those freon refill kits and added freon but it said I was already over pressurized. So now that winter has passed I bought an AC manifold gauge kit and emptied the system and tried starting over. When I add freon the low pressure side goes up way too much and the high pressure side doesnt go up enough. So the low pressure side is over the recommended pressure and the high side is under the recommended pressure. Do I need to replace the compressor or is it something else? (I can also hear the compressor kick in when I put on the A/C)
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I just got a 96 Grand Am for second vehicle, but it won't blow any air (hot or cold), I checked fuses they all look good. I'm thinking possibly blower motor, but wanted to get some feedback before I start plugging away.
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My 2005 Prius is having a problem with the AC. It will only blow cold air if the temp is set at MAX COLD. Any other temp setting and it will blow hot air. Really hot air. It makes no difference what the outside or inside temps are. Is there a simple fix for this?I can control the AC by setting it on Max Cold and changing the fan speed, but I would like for it to work on the auto setting the way it is supposed to.
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