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post #1 of 13 (permalink) Old 03-20-2017, 07:02 PM Thread Starter
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AC blowing warm while idling

Hi all!

My Tundra just recently started blowing warm/outside temp air while idling. When driving, the AC blows ice cold. I've checked the pressure and everything is within range. Any suggestions? I've seen everything from cleaning the compressor to the clutch fan going out.

2010 Tundra
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post #2 of 13 (permalink) Old 03-20-2017, 07:23 PM
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Have you Tried blowing compressed air through the condenser. Sounds like a lack of air flow


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post #3 of 13 (permalink) Old 03-20-2017, 07:47 PM Thread Starter
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Originally Posted by molunkus stream View Post
Have you Tried blowing compressed air through the condenser. Sounds like a lack of air flow


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I've thought about that or running water through it. Where is the condenser on a 2010? I've looked online but can't really get a good answer.
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post #4 of 13 (permalink) Old 03-20-2017, 10:28 PM
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Originally Posted by Speck2190 View Post
Hi all!

My Tundra just recently started blowing warm/outside temp air while idling. When driving, the AC blows ice cold. I've checked the pressure and everything is within range . Any suggestions? I've seen everything from cleaning the compressor to the clutch fan going out.

2010 Tundra

Obviously not

I'm not judging...I'm just sayin


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post #5 of 13 (permalink) Old 03-21-2017, 08:10 AM
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When mine blows warm at idle it's always low on Freon. I just put a can of AC Pro in it, I've been doing that every summer for the past 3 years. If you happen to over fill it the compressor will stop working and all you need to do is bleed some Freon off.
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post #6 of 13 (permalink) Old 03-21-2017, 01:17 PM
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Fan Clutch crapping out on you?

At idle, no air is moving across the condenser to exchange the heat causing the warm vent air. Once you get going, air is moving across the condenser exchanging heat causing cool vent air.

This of course assumes the refrigerant is properly charged.

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post #7 of 13 (permalink) Old 03-21-2017, 08:24 PM
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Had this issue on my highlander. Turned out it was a pin hole in the condenser that slowly leaked.
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post #8 of 13 (permalink) Old 03-21-2017, 09:50 PM
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The condenser may be incorporated with the radiator. There was a design change in the earlier years.

Follow the A/C pump hoses to the radiator/ condenser to see if you have the combination type( expensive) condenser/radiator.

If you have the conventional type of condensor(<$100),then look for oil stains on the fins. This will tell you if you have a leak.

Report back.

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post #9 of 13 (permalink) Old 03-22-2017, 10:00 AM
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Originally Posted by koditten View Post
The condenser may be incorporated with the radiator. There was a design change in the earlier years.

Follow the A/C pump hoses to the radiator/ condenser to see if you have the combination type( expensive) condenser/radiator.

If you have the conventional type of condensor(<$100),then look for oil stains on the fins. This will tell you if you have a leak.

Report back.

I believe that it was the trans cooler and ac condenser that were all in one and not the radiator and the condenser

I'm not judging...I'm just sayin


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post #10 of 13 (permalink) Old 03-22-2017, 10:19 AM
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Yep, you are correct. Got them mixed up.

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post #11 of 13 (permalink) Old 03-22-2017, 11:14 AM
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My fan clutch caused this in my old 4runner. New fan clutch, HUGE air change across condenser, and everything worked good after that.
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post #12 of 13 (permalink) Old 03-22-2017, 03:14 PM Thread Starter
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Originally Posted by Radial GT View Post
My fan clutch caused this in my old 4runner. New fan clutch, HUGE air change across condenser, and everything worked good after that.
I'm going to try this. I cleaned out the condenser and am still having the warm air at idle issue.
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post #13 of 13 (permalink) Old 03-22-2017, 03:25 PM
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Originally Posted by Speck2190 View Post
I'm going to try this. I cleaned out the condenser and am still having the warm air at idle issue.
One way to check it is you know the crazy wind sound it makes when you start the truck cold? It should make a similar sound when it is really hot too. You can rev it when hot and it should make a similar sound of moving air.
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