Lexus GX 2004-09 :: Hot Air Blowing In From Vents (AC Off)
Jan 7, 2011
I had my 2006 GX 470 in for 30k service last month. Cabin Filter was replaced.
Now with the temp set to 68 degrees, outside air on, the vent(AC off) blows hot air, usually when using the car first time in the day. Sometimes, after a while, cool air starts blowing in. I feel something changed after the service. If I set the temp to MAX Cold it blows cool air. I have had this car since 2006 and not seen this behavior.
Currently its cold in California so outside air should not be hot at all. I also experienced this when it was snowing outside, during our Reno trip.
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Yesterday I was driving with the AC on. I had it on the setting that blows out of all 4 dash vents (left, right, and two middle). I switched it to the option that should blow from the 4 dash vents and the vents in the floor/bottom. All of a sudden the two middle vents in the dash stopped blowing.
I have played with the settings - on, off, all the way hot, all the way cold - nothing from the two mid vents. The left and right vent blow with no problem. There is also cold air coming from the vent near the windshield - just the two middle dash vents are not functioning.
I found one thread that mentioned the problem may be with the "levers" or "actuators" that I have pictured here. I just replaced the 12v battery.
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I have an 06 Prius. I was driving my Prius today and I've noticed that my car has NO HOT AIR...
And this is Winter!! I was driving for about 20 mins and still...No Hot air...vents are blowing cold (cool) air.
I recently changed my condenser/radiator but I did NOT fill my condensor with the A/C gas yet. (could that be the problem?) But isn't the gas inside condenser is for A/C and not for the Hot air??
Any other stuff that I need to check to solve this problem?? (harness, fuse etc.?) It's cold outside and my car has NO HEAT!
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Nothing will blow out from vents, with heat or AC. I checked the fuse under the hood and that had continuity, I checked the 7.5 fuse under the dash and that was fine. I also replaced the blower motor resistor and the blower motor with brand new ones. Also used a test light to make sure power was getting to the resistor and motor and that is all good.
2004 Honda Accord EX Sedan .....
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My car: 2008 Prius (base)
Here is the problem: All of a sudden the two middle vents in the dash stopped blowing. I have played with the settings - on, off, all the way hot, all the way cold - nothing from the two mid vents. The left and right vent blow with no problem. There is also cold air coming from the vent near the windshield - just the two middle dash vents are not functioning.
What I have done so far: I had it looked at by a mechanic who I trust. He said there is a small motor (he called it a servo motor) that controls that middle vents (open/close). He said that had gone bad. He manipulated it so that the air blows out of the vents now and said not to change any settings until I am ready to replace the part.
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My problems in my ac begin last year around Summer. My ac was blowing hot and not cold and once it even blew some kind of smoke out of the vents. It only did that once and hasn't since. I went to good year and put some freon in the car. And it started to blow cold again and I was good for a while. Well I didn't need the cold air for the last few months till the heat started up again.
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The A/C on my 2004 Accord has started blowing warm air out of the 2 driver side vents, but still blows cold air out of the 2 passenger side vents. It also occasionally blows condensation out of the 2 cold passenger vents. When this same thing happened last summer, the condenser and compressor were replaced within 3 weeks of each other. It is less than a year later and the same problem is occurring. Even more odd; every once in a while the 2 driver side vents will blow cold for just a few minutes, then revert to blowing warm air. The car does not have dual climate controls.
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I've recently purchased a 2007 Prius and I just noticed few days go that A/C blows warm air (weather was fair when I bought it and I can't remember if it really worked or not then) and middle vents do not blow any air. I'm not sure if two problems are connected but I do want to get both fixed without spending $$$ at the dealership. Where can I start?
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I have a 2004 Chevy Venture and the blower (Vent, AC, Heater, doesn't matter) is only blowing air out of the left or driver side of the van, nothing on the passenger side vents. There aren't 2 blower motors, are there? Is a door shut that shouldn't be? This van doesn't have dual climate control like my GM cars do. The rear controls work fine for the 2nd row passengers. Again, not tied to any blower speed or heat vs. AC. Same regardless. Nothing on the passenger side.
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Why these air vents will not lock down. No matter how hard I push down, they will not lock. Check out the pictures, if this doesn't make sense. Notice the driver-side vent is perfect.
Stays elevated and won't click down.
Taking the air vent piece off.
Same thing with the windshield defroster.
Lifting up the defroster.
The driver-side.
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I have a 2003 Passat 4Motion wagon with the 2.8 VR6 motor. I am currently having an issue with the air conditioning / climatronic unit. In the summer when the A/C is on, if the car is stopped hot air blows out of the vents. As soon as I start moving the air is ice cold. I have checked the compressor, had it recharged and everything on that end looks good.
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Air blowing out of only one of the 2 middle AC vents? Are there individual fans for each vent and maybe one is broken or something like that?
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My 2001 E350 van's factory rear A/C is not working. Front A/C and heat is fine. Regardless of front control position for rear, heater stays on all the time unless I turn it off with the rear control. No air is blowing from the rear A/C vents, only from the rear heater vent. This isn't a big problem right now, but will soon be an issue. I use this van for my sales route, carrying a lot of temperature sensitive snack products. I don't have an owners manual, and the Haynes manual has no info at all regarding the rear A/C.
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After long day/night on call, get into 2005 Camry XLE 2.4L and it is blowing hot air out of vents unless I select max AC where it blasts so much cold air I cant stand it. Brand new issue and had no other indications of any issues. No engine light on and vehicle appears to be operating normally.
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I recently purchased a 2010 Toyota Corolla. Over all good car and in pretty decent shape. The Only only issue I've found with it is the two center air vents are not blowing, nor does the a/c knob change the air flow. For example regardless of what air setting I have it on it's always the two foot vents and the outer door vents blowing. Granted the air temp is fine. It responds to whatever temp I want it and it gets plenty cold.
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I have a '06 Toyota Highlander that blows hot air from the vents when the controls are in the following positions:
- Temperature anywhere in the cool to cold range
- Fan on at any speed
- Diverter in any position
- A/C OFF.
The air comes out hot after I make a sharp turn in either direction. If I turn the fan off I get fresh, cool air from the vents regardless of the turns.
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I took my Enclave in to get the rack and pinion steering change out for a new one, which was about two weeks ago. I've had the car back for about a week, and the day before yesterday, the air stopped blowing out of my top vents, and only comes out of the bottom. Do you think this problem is related to the recent repair, or do you think it's completely unrelated. What the problem could be?
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There are bits of foam blowing out of the ac vents on my chevy pickup. Took it to the shop. They checked it over and said that the AC is functioning properly no problems with the system. The foam they state is coming from the doors inside of the ac system and suggested that I ignore it. I looked closer inside the vents with a flashlight and I do believe they are correct from what I saw. It is messy as it is greasy if squished. I am wondering if try to use an air compressor to blow out the vents and remove as much of that junk as possible and was it very successful?
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My mother's 2000 E150 van isn't blowing any air out of the vents. It doesn't work on high. I can detect a small amount of air coming out of the defrost vents and the floor vents when it is on high. I just replaced the resistor after finding that it had melted and still no air. My mother said that the a/c would go on and off when she hit bumps.
Do you think maybe the fan isn't grounded so the resistor overheated and caused melting in the resistor plug? The plug looks exactly like the one in the middle of this webpage. Same pin melting location also. Ford Blower Motor Resistor Pigtail Replacement...
I ran out of time to work on my moms van because I am in law school and live 2 hours away. Assuming ground, blower, and fuse are all good (I'm checking those friday), what else could be the problem?
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As the season has started to warm, I noticed when I have my air temp set to 60 and only using the vent and have not selected AC I have hot air coming out of my vents. After doing some research it appears that I may have a bad Air blend actuator, bad air door or something else. I took my truck to the dealer to get my fuel filter changed and asked if they could diagnose the hot air issue. Not being a mechanic I told the service mechanic the problem and he says the AC compressor always kicks in on fords even if the AC is not selected and maybe I have a leak and he seemed to think it more than likely was not the air blend actuator or blend door.
I told him I had no idea that the AC compressor always kicks in even with it not selected. I knew it kicked in for AC and for defrots but didn't think it did for anything else. He said since the 90's all fords did. Well I get a call that after diagnosing the system, they believe the freon is low. I just have my doubts and wonder now if I should've just tried to take the air door actuator off and test along with sticking something in the air blend door whole and verifying it was moving.
I was hoping someone that knows more than me can verify if the AC compressor kicks in even when it is not selected when I have the temp selector set to low 60 degrees. Does it make sense that I would have hot air blowing out of the vents with the temp set on low even when it is cool outside. All of my temp controls work moving from defrost, vent to heat as I can feel blowing out of the different zones.
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I just had a bunch of work done on the engine of my 96 f250 7.5 v8 460 and now whenever I'm going up hill, my air conditioner stops blowing from the vents and after I get back of a level ground it starts blowing again. What it could be?
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