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Toyota Highlander Heating Ventilation and Air Conditioning

107 messages,  Last post on Nov 16, 2009 at 5:13 PM

You are in the Toyota Highlander Forum. Your Hosts are steve_ & tidester

What is this discussion about? Toyota Highlander, SUV


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#55 of 107
Re: A/C problem [mikefm58] by kenlw
Sep 05, 2008 (4:45 pm)
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Replying to: mikefm58 (Sep 05, 2008 4:30 pm)

if the compressor isn't cycling on, the air won't be cool at all. And if the compressor won't come on, how do you tell if the freon pressure is good?
#56 of 107
Re: A/C problem [kenlw] by mikefm58
Sep 05, 2008 (6:51 pm)
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Replying to: kenlw (Sep 05, 2008 4:45 pm)

You're right about the compressor cycling, I must have not heard it correctly. I did notice the temp. control knob was quite loose as others have stated. I pulled the cover off and hand tightened the nut, seems much cooler now, but it's night time, still hot here in Florida but I'll know more tomorrow when it's hot.
#57 of 107
by djmetak
Sep 11, 2008 (11:18 pm)
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I had the same problem with airconditiong on my 2005 Highlander. When I would select either heat or cold, it would be changing on its own every couple of secs. And then I found this forum and read some of your comments. I took off the temp knob, and there was a little screw which I just tightened and now it works like it should. Before I found these forums I was thinking of taking the car to the dealer who would probably rip me off. Thank you guys a lot.
 
Since you helped me fix this problem, maybe you can this one also.
 
Couple of weeks ago somebody broke into my car. They broke the drivers window. I ordered a brand new window from the Toyota dealer and raplaced it myself. The window works fine up and down, closes, opens but the only problem is the "Auto up". When I pull the which all the way up for the window to automaticly close, it come all the way up, and then by itself opens (comes down) half way and stays like that. In order for me to close it without opening on its own, I have to close the window manualy, not pulling the swich all the way up for the "auto close". I was told that I need to reset the motor and for that the dealer wants 150 bucks. I just don't think that it is worth that much money and that there is a another way to solve this problem. Does anybody know how I can reset this window so my Auto works?
 
THank you in advance...
#58 of 107
Re: [djmetak] by wwest
Sep 12, 2008 (8:02 am)
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Replying to: djmetak (Sep 11, 2008 11:18 pm)

Try "normalizing" the window by holding the switch in the up position for about 20 seconds after the window is fully up.
#59 of 107
Recirculation stop and starts by AnthonyVWSmith
Feb 01, 2009 (2:01 pm)
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Highlander 01 with the Auto Climate controls. Recently had the engine replaced and the AC works fine except when I put on the recirculation button. If the weather is cold and I turn on the recirculation button, it remains on... but when the weather is warm it seems to reach a certain point and then the recirculations starts to turn itself off and on, off and on. Any ideas
#60 of 107
'04 Highlander evap core replacement by karen42
Mar 28, 2009 (6:56 pm)
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my '04 Highlander A/C started blowing warm air. A check at my repair shop showed no freon so they added some and checked for leaks. Had cool A/C about 24 hrs, then hot air again. Freon added again but no leak ever found and again had cool air for about a day. The condenser and clutch are fine so I was told the evap core is probably the problem Also, when I just have the vent control on and the temp know turned too the cool side, hot air will come out when I go around a curve or corner. Very weird. Any ideas? I was told replacing evap core was very labor intensive therefore big $$. I live in an area where I need the A/C in the warm months. Thanks for any help/suggestions.
#61 of 107
Re: '04 Highlander evap core replacement [karen42] by mikefm58
Mar 28, 2009 (7:48 pm)
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Replying to: karen42 (Mar 28, 2009 6:56 pm)

I had a wierd similar problem like you described, but I wasn't low on freon. The air temp. in my case would also go between hot and cold by itself. Grab a hold of the temp. control knob and shake it. It should be firm. If it's loose, pull it straight out and check the nut that tightens down on the bolt. Tighten it down and use some lock tite so it won't come loose again.
 
Good luck and let us know if this fixes it.
#62 of 107
Re: Recirculation stop and starts [AnthonyVWSmith] by wwest
Mar 29, 2009 (9:04 am)
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Replying to: AnthonyVWSmith (Feb 01, 2009 2:01 pm)

Many automatic systems will turn the system to fresh airflow within a few minutes if the A/C is not operating. Otherwise too much danger of moisture buildup in the cabin and the soon thereafter windshield fogging over.
#63 of 107
Re: '04 Highlander evap core replacement [mikefm58] by howza1
Apr 21, 2009 (7:16 pm)
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Replying to: mikefm58 (Mar 28, 2009 7:48 pm)

You Rock!
 
Just fixed my Highlander in two minutes by tighening the nut.
 
Car was blowing hot air even in the off position, and only hot with the AC on.
 
Now it works like new.
 
Thank You!!!!!
#64 of 107
Re: '04 Highlander evap core replacement [howza1] by mikefm58
Apr 22, 2009 (3:55 am)
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Replying to: howza1 (Apr 21, 2009 7:16 pm)

Cool, glad I could help, I've even heard from others that had taken their vehicle to their dealer and been given huge estimates to replace major components of their A/C or heater systems. I've got to believe there is a TSB from Toyota somewhere.

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