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Heat stuck on


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jtprice's Avatar
CF Beginner

Join Date: Jan 2011
Posts: 8
Iowa

May 21st, 2011, 7:19 PM   #1  
Heat stuck on

i have a 2000 Chevy Silverado 1500. having an issue that my air is constantly on HOT! thankfully i can shut off so i dont have hot air blowing @ all times, but regardless if i turn the a/c on, turn the fan on, or mess with the hot/cold gauge it just continues to blow supper hot air. the only way to stop is to turn the fan off. Any ideas on what might be going on?

 
zm1040's Avatar
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Join Date: Jun 2010
Posts: 64
Buda, Texas

May 22nd, 2011, 12:37 AM   #2  
Maybe you are in need of a recharge?
Not sure but I'd go to a place that will do a free check to see if it needs freon.

 
OLD WRENCH's Avatar
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Posts: 368

May 22nd, 2011, 10:28 AM   #3  
Sounds like a "mode door" actuator has gone bad. The mode door directs the incomming air either past the heater core or the AC evaporator. The control itself can also go bad,thus not telling the actuator to act.

 
jtprice's Avatar
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Iowa

May 23rd, 2011, 8:54 PM   #4  
thanks for the note. another wrinkle to the story is that i got back in the truck yesterday and everything works just fine. would this lead you to believe it might be the control for the mode actuator?

 
OLD WRENCH's Avatar
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May 24th, 2011, 10:54 AM   #5  
Yes. The actuators dont come and go.

 
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