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Discussion Starter #1 (Edited)
So looks like I'm not the only one with A/C issues.

This just started a couple of weeks ago when I started using the A/C a lot. It runs fine when I first start the truck. frequently though if I stop anywhere and turn the truck off, when I come back out to it and start the truck it blows out hot air and continues to blow hot air. It doesn't matter if its on defrost or A/C. If I turn the nob all the way to hot, then back to cold the A/C gets cold again and stays cold. I don't think its an A/C issue because when its working it blows Ice Cold!!! If I turn the nob even a little bit it starts to blow out warm/hot air and I have to start all over again. it also seems like it takes a long time at night when I run the vent for the air to cool down coming out the vents to night temps. Any Ideas would be appreciated.
 

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So it works after messing with the temp knob? Sounds like it could be the actuator I think that one is called the blend door actuator. Do you ever hear clicking coming from your dash?

Cause in most vehicles when you shut it off completely if you play close attention to sounds inside the dash you can actually hear the actuators moving to their default positions and when you start the vehicle back up they go back to setting they were set at. That's probably why you have problems only after you stop and then go again. most of the time it's usually the mode door actuator that controls where the air comes out that poops out. Sometimes if you shut your truck off completely and wait a couple minutes you might be able to hear the clicking if it is the actuator
 

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Discussion Starter #3
So it works after messing with the temp knob? Sounds like it could be the actuator I think that one is called the blend door actuator. Do you ever hear clicking coming from your dash?

Cause in most vehicles when you shut it off completely if you play close attention to sounds inside the dash you can actually hear the actuators moving to their default positions and when you start the vehicle back up they go back to setting they were set at. That's probably why you have problems only after you stop and then go again. most of the time it's usually the mode door actuator that controls where the air comes out that poops out. Sometimes if you shut your truck off completely and wait a couple minutes you might be able to hear the clicking if it is the actuator
I've always heard them return to default, but never the clicking as described on so many other posts. but I admit I usually don't stay in the truck all the time to hear them reset. I'll try to sit longer in the cab and see if I hear the clicking. I thought it could be the mixer. However I'm not really understanding why it blows such warm air after only moving the control knob one or two degrees when its on defrost.
 
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