Touareg :: Air Conditioning Blows Hot Air When Outside Temp Above 88
Aug 28, 2007
The AC blows very cold as long as the outside temp is 88-87 and cooler. As soon as it goes over 89 or so, the air rapidly warms eventually blowing what feels like air HOTTER than the outside ambient. No matter if i shut it down or blow warm air it will not restart until the temperature outside drops below the magic mark (so i dont think the coil is freezing over)... and then it blows frigid air. I don't think it is low refrigerant because of the efficiency at cooler temps and the nearly exact outside temp it changes. It is as if a sensor is activated and nothing but a temperature drop changes its status. It is so predictable that to me it sounds like a sensor or kill switch that is activated. One fan was out. had it replaced and still have the problem. This has been going on all summer and VW stamps everything "could not replicate". 2004 touareg vs 80k miles (with plenty of troubles along the way)....
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The AC in my F-150 Super crew Lariat 5.4 was just charged and works fine until the temp reaches ninety degrees, then it blows hot. What this could be?
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My 05 V8 has developed a slight whistle when the air conditioning is turned on and the fan speed is high. This only seems to happen when the system is taking in outside air. If it is recirculate mode, the whistle goes away. It also goes away if you manually turn the fan speed down. My assumption is that something may be caught in the intake.
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I have no heat in the LS at no settings. The AC runs good but does not seem to be regulated as it blows cold at any temp setting. The fan responds to settings but i still get no heat even with the AC turned off. I would like to find a diagram that shows the locations of the bleed valves to start a coolant air bleed.
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i have a 2002 Honda Civic EX, 155,000 miles. I've been having this problem for quite some time and the mechanic has not been able to figure out what the problem is. He has changed the thermostat, pressure tested the coolant (or something along those lines) but the problem persists. The mechanic also pressure tested the radiator system and said there was no leak. He also told me the tank was overfilled with water, apparently I didn't need to be waiting for the car to cool down so I could add more water, so I've stopped doing that. I have NOT had the scheduled 150,000 maintenance done yet. The mechanic said it wasn't 'urgent' and if I wanted to wait I could. I was hoping to spend the money repairing this problem before doing that, which he said sounded OK to him. The timing belt was replaced in 2007 right before I moved across the country.
I'll try to be succinct, but the explanation is long. Overall: when driving the car to run errands around town the temp gauge used to quickly go all the way to HOT & the A/C starts blowing hot/humid air. When this happened I was pulling over, turning off A/C & radio & putting the car in neutral until the gauge goes back down, used to take only a few minutes but if driving in town (stop lights/traffic) i have to keep doing this b/c the needle returns to the top quickly. I also started trying putting the car in neutral while stopped at lights or in traffic & if i pushed on the gas pedal & kept the engine at 3K RPM the needle would go back down & A/C would start blowing cold when I started driving again.
The other part of this is if i change the A/C vent diverter from all vents blowing at upper body to vents blowing at face & feet or all vents blowing at feet the green 'recycled air' light goes out & the air starts blowing hot & humid, this persists even if I push the 'recycle' air button again.
Until yesterday this temp gauge & A/C issue has not been nearly as much of a problem when driving on the highway at a consistent speed, in other words when the car doesn't have to idle the problem didn't occur very often, the temp gauge may have moved towards 'HOT' but never got all the way up there. Until yesterday. I had to drive thru town with quite a bit of construction & resulting traffic as well as a few stop lights which sent the gauge go to HOT quickly. When I got on the highway I was expecting the gauge to go back down & the A/C to start blowing cold air.... alas, it did not. the gauge stayed very near HOT the whole time & the A/C never blew cold air. It was 106*F yesterday?
And yet another part of this problem, which the mechanics have told me is NOT related to this problem: in the winter time the heater took an extraordinarily long time to heat up and then would only blow warm air while the car was moving at a pretty high speed, under around 30 MPH and there was no heat, and definitely no heat when idling. I do not remember the temp gauge hanging out at HOT all the time but I do think it would go higher than the middle range.
The car has yet to actually overheat. Apparently the mechanic can't diagnose/repair the problem until the engine DOES overheat, at least this is what he has told me. I'm not feeling very confident in this mechanic, as clearly the problem is getting worse over time. And I don't believe it is OK to continue driving a car when the temp gauge is at HOT all the time, that doesn't seem smart at all. Sadly, the mechanic that used to work on my car & was able to diagnose & repair problems quickly & competently has gone to work somewhere else & is no longer working on cars. So, I have decided I cannot continue to use the current mechanic and am now faced with having to take it to the dealership, something I REALLY hate to do. I just don't know of any other reputable Honda repair folks in the area & am tired of being w/o my car for days at a time and still have to deal with the problem.
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Ford crown vic, 1999, 125k miles, no engine work has been done, did flush cooling system in spring of 2013 and put in a 50/50 mix of coolant and distilled water (from a jug). No problems for the summer of 2013, have been using heater with no problems until around Tuesday of this week.
Car runs fine, no leaks, coolant checks out good. BUT now.. My temperature gauge hardly moves (up) and the heater blows warm air only. If I am driving the gauge will not move, if the car sits running for awhile it will move up some and the heat will get warmer inside of the car. My guess maybe a stuck thermostat?
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As the weather here on the east coast is starting to warm I decided to run the A/C. Well low and behold it blows warm air, regardless of what I do. I put it to LO, nothing. I made sure to turn ECON off, nothing, I even tried to cycle the ECON button but it doesn't seem like the compressor is being turned on.
Will be calling the dealer tomorrow, it is well within warranty. Just sucks I have to deal with this, plus I see that there is a TSB out but it only lists codes as to why the compressor, if that is the problem, is not on.
What was done to resolve? The A/C last summer worked fabulously??? So I hope it is not a coolant leak or something like that, hope it is just a faulty sensor or switch.
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I have a dual zone climatronic in my 04, I just noticed it last night that regardless of what temperature setting the passenger side is in, it just blows cold air. Winter is fast approaching.
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Out of the blue, i hear a single chime (same as seatbelt chime) and at the bottom of the MFI I see what looks like a snowflake and 39* (where * = degrees) flashing. After about 30 seconds it stops flashing and goes away.
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As much as I love this vehicle, I'm starting to regret the purchase. After 8 years of a flawless Tahoe and 3 years with a flawless 528i, the Touareg is frustrating me.
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Within 160 miles of having the 40k service performed on our 2004 V6 Treg, the alternator light came on, then almost immediately the CEL light came on and engine temp skyrocketed. Immediately pulled over and shut car off. Found that serpentine belt had broken, but showed no signs of deterioration (dealer agrees with that observation). Now for the worst - at least one, possibly both heads have warped. VW says too bad, belt is normal wear item, need new engine at my expense.
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Just recently bought a 04 greg with 35000 on it one owner pretty much brand new. Its starting to get cold over here in va but I notice the temp gauge wasn't moving when warming truck up. After sitting for 25min it was still at 150 degrees. So I drove home about 10 mi away an when I got home it had just started to move up. This can't be normal.
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I have a Buick park avenue 1998, 3.8L V6 engine. the problem is: The ac vent on the driver's side blows cold air but on the passenger side blows EXTREMELY hot air. no matter how cold or hot you set the ac it blows at the same temperature on both sides. Florida heat is setting in and my passengers are melting. I am really hopping that is not something to bad and that I can fix it myself. Tip: this started happening after i had the alternator and the battery replaced.
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On longer trips, over 20+ minutes that the interior temp does not hold the current set climate control temp? If using sync on both sides, the temp in the cabin seems to creep down and you have to keep upping the setting and then reduce it because its too hot.
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