Gmc :: Yukon AC Blowing Hot Air Instead Of Cold
Feb 17, 2014
My A/C wasn't working (blowing hot air instead of cold), so I had some repairs done. First I was told it was some sort of bracket, replaced that. Then the guy told me it was the compressor, replaced that. About $1K later, he returned the vehicle to me, and the A/C worked about one hour, and even then wasn't super cold. I have since had the freon level checked and there are no leaks, everything seems to be OK, it just doesn't cool.
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I have a 2005 Yukon XL. In Oct 2010, my front A/C started blowing hot air even though it was set to cold. Nothing has happened since then, except that about a month ago, the A/C in the front stopped working but the A/C in the back still works great. The one in the front works when it wants to (once or twice in a week) and when it does, there is cold air coming out of it. We live in FL so it is getting pretty hot to not have A/C and we are going on vacation soon. What can be causing my A/C to work like this?
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Every time I replace the fuse(under the hood) it blows almost immediately and no interior light work. When on all doors and overhead lights do work so I don't believe it's one of them shorting. Even tried bigger fuse.
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I have a 2000 yukon and the climate control stopped working. The defrost works just fine but the heater/ac stopped working nothing blows out from my vents when ac/heater setting is on. I checked all fuses and wires and everything is ok and connected. I just replaced my cd player and the next day climate control stopped working. I went back and checked the wireing of the cd player as well, everything is fine. Would i need a new climate control, or senser or is there a fuse on the heater itself.
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Set on 72 both sides, passenger cold, driver side hot ... 2007 Yukon Heat and Air on together ....
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I have a 2004 Passat 1.8T and I am having issues with my a/c. it isn't blowing cold air. The first time it happened, I paid to have it recharged and it worked for 2 weeks then it went on the fritz again. I had the gas pressure checked and it is at a regular level. The second cooling fan comes on when the a/c is turned on, the fuse and the relay are also good. I checked the a/c pressure sensor and it is also working properly. I suspect that there is a valve or sensor that has seized up (due to the temporary addition of refrigerant). I also scanned the HVAC for fault codes and the only fault is an air flap position motor.
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Was driving down today (4 hour trip) my AC is not blowing cold air at all... I had the temp set to 62 and fan speed all the way up and i can barely feel it with my hand... Feels like no air coming out of the vents but the air is set to the highest speed, i can definitely hear the fan blowing but no air (very weak air).
After park our car for about 2 hours, on our trip back the AC worked again... i was able to get nice cold air at fan speed 2... but it only lasted 2 hours, half way into the return trip... same thing happened!! Fan speed all the way up, temp set to LO and still very weak air and temp feels like 78.
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Over the past few days my A/C has gotten progressively warmer to the point it's not blowing cold at all. Early summer I checked the low side pressure and it was at around 30 while running. I added a can to bring it up to 35-40. Blew ice cold air all summer. Now when I check the low side pressure it's around 40 when off. When I run it, the compressor short cycles. When the compressor kicks on, the pressure drops real low (LOW on my guage). When the compressor kicks off, the pressure goes up to about 55-60 then drops back down low for the 2 or 3 seconds until it kicks off. Thought I might have a leak but after seeing the system pressurized like this, i don't think so.
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My car is blowing cold air but no heat at all. I checked the codes and it's throwing a B1 1-3-1. It's also throwing a A7 1-2-2. a buddy of mine is a mechanic but not too familiar with Volvo's. But he said that he thinks the B1 1-3-1 Driver's side air duct short is the problem. Is this the problem and how do I fix it?
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Today I got in the car and turned on the ac, got no air blowing. Turned the ac off and the heat up, still nothing. I assume the blower is shot or maybe the fuse? I could hear the vents switching from top to bottom as I changed it but no air coming out. Where would the fuse be? What to check? Engine cooling fans replaced last year and working.
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100 degrees in Florida a couple days ago and I pop the ol' AC and chilled seats on. It is like a blowdryer on my face. Uh-oh.
After pushing multiple buttons and settings, I can't get the air cold....except on the right side of the car.
The right/center vent and far right vent in the front, and the rear passenger right vent will blow cold, while the left/center, far left, and rear left vent blow warm-hot air. Tried everything from Low to 70 to 74....same results. The right side will adjust up to heat if I put it on hot air matching the left side.
Are there two compressors in the car? Is there a stuck vent? Fuse issue? Something more sinister?
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So it's finally been nice this week, only problem was it was Humid as it poured for more than 24 hrs the day before. I tried using my Ac but all it was doing was blowing warm air. I figured it was the car being hot since it it black and it was sunny & I did have the car running. I tried using the Ac yesterday and it was blowing slightly colder air but still warm. I don't know what the problem is and so I went to my moms elantra to compare since we have the exact car just different colors and her car was blowing air as if it was straight from the arctic.
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Heater is blowing cold air. What I have checked, coolant level, replaced water pump and thermostat, checked blend door, flushed heater core. When I checked the blend door via the heater treator method I was getting hot air coming off the core but also getting very cold air coming from the A/C evap in side the plenom box. I also pulled the fuse for the A/C clutch and I am still getting cold air. I am look at replacing the HVAC contol.
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Suddenly yesterday, my AC was blowing hot air on every setting except for Max AC. When on Max AC, then heater control valve closes but with just AC, it opens back up. for floor, defrost, etc. seems to work just fine, but it blows engine hot air at those places except for Max AC.
It seems as though the temperature control is stuck in hot or quit working all together, AND (I'm guessing here) that Max AC overrides the temperature control? That's the only thing that make sense to me.
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When i turn on the ac its cold for about a few mins and after it just starts to blow air and its not cold anymore, also it smells funny when i turn the fan on for a few seconds.
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I have a 2004 2nd generation Toyota Harrier (Lexus model RX330). The A/C blowing hot air if temperature is not set to Max Cold. This happened no matter whether turn on the A/C with Auto or Manual setting. This case also happen no matter whether setting the A/C system to Dual mode or not, no matter whether turn on or off the air intake control button.
As long as A/C on, cold air only come out when temperature set to Max Cold, even if set to 18 degree, full hot air come out. Another thing is, say I have the A/C on, set to max cold, cold air came out from the front vent, but after I try to increase the temperature to say 18 degree, the hot air flow will change to Floor/Windshield mode.
Could it because due to the change of the battery? Is there anything need to reset after replacing the battery?
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It seems my A/C isn't blowing cold air all the time. It's as if the compressor isn't kicking on or is intermittent. It eventually does, but it takes a long time to cool the vehicle. I've had it about 6 years and it has definitely changed. Vehicle is an '04 with 106K now.
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Right now it's 101 degrees outside and the A/C on my Prius just ain't gettin' the job done. It doesn't even feel like it's blowing cool air anymore, just lukewarm air. How can I cool down the cabin more? Temps like this only happen a couple times a year here. What do Prius owners do in places like Pheonix where 100+ temps are the norm?
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I had my A/C compressor unplugged over the winter, and now that I've plugged it back in, the A/C is not blowing cold. Is there some kind of programming reset that needs to be done?
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My 2013 Passat SEL TDI has 40,000 miles on the clock and in the past few months I've noticed it's taking longer to start blowing cold air. I've had several summers already so I'm already used to it's performance in the hot summer months but this summer has been different. The A/C will not blow any cold air at all before the car gets going under load (it didn't need engine load before) and sometimes it just won't blow cold at all but just barely "cool" air. I'll sometimes be driving for a half hour and never get the A/C to really blow cold.
Other times, it'll blow just fine. It's the hit and miss performance that has me confused. I then bought one of those refrigerant bottles from an auto parts store that comes with a gauge to see if maybe I have lost refrigerant or it's low but when I checked the gauge the pressure was exactly where it needed to be. I just came off that dreaded 40K service at the dealership and am trying to avoid going back there at all costs...
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I have a 2000 Jetta that doesn't blow cold AC. Here are the details:
- When the AC is turned on, air does blow through the vents. Each setting (1-4) does blow harder than the previous.
- Both front fans spin and are working
- The AC compressor clutch never engages
- All fuses (two inside the car and the one above the battery) have been replaced and test good.
- When the AC is on full blast, the voltage coming from the AC compressor wire shows ~9.3V for about 5 seconds, then jumps up to about ~11V for less than a second, this repeats over and over and the clutch never engages.
What the next logical troubleshooting step would be? I've read about this possibly being the fan control module (maybe) and also read about testing the AC compressor using an external 12V power supply, but am not sure where to go from here.
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