No hot air from heater??? - Ford Powerstroke Diesel Forum
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  #1  
Old 04-08-2012, 05:36 PM
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No hot air from heater???

Drove our truck about 90 miles to inlaws on Friday PM, heater was working fine. Over the weekend, I cleaned the battery terminals and topped off low cells on battery but didn't drive it.

Coming home tonight we noticed that we couldnt get hot air. Vent/heater/defrost positions all changed properly, hoses to and from heater core were hot.

I'm guessing the air isnt being direct to the heater core when I switch from cold to hot on the dial.


Any help is appreciated.


Thanks.
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  #2  
Old 04-08-2012, 08:33 PM
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In the F-150s and Rangers, it is a common problem for the blend door to break, causing a similar issue. Never heard of this being an issue on the Super Dutys, but its entirely possible...
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Old 04-09-2012, 04:49 AM
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I've been searching around for possibilities and "blend door" keeps coming up. Thanks.


Anyone know how hard it is to get at it and the blend door motor?
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Old 04-09-2012, 05:39 AM
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To replace the blend door, it's a biatch. The entire dash has to come out.
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Old 04-09-2012, 06:39 AM
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No heat

what year truck?
On 99, the blend air drive motor went out, just behind glove box, no reason to take out dash. Motor was less than $50 and 1/2 hour to replace.
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Old 04-09-2012, 07:25 AM
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Motors are easy. Doors are not. You can easily check to see if the motor is working or not... Just remove it, keep it plugged in, and change the temp
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Old 04-09-2012, 07:35 AM
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Quote:
Originally Posted by mburman View Post
what year truck?
On 99, the blend air drive motor went out, just behind glove box, no reason to take out dash. Motor was less than $50 and 1/2 hour to replace.

2000, hopefully same thing!
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Old 04-09-2012, 07:24 PM
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Well, I ordered a new blend door motor today, the wife and I drove the truck to costco and back and guess what....


Hot air!, Cold, it switched back and forth like new?????????????????


Where is the pull your hair out smilie?

I'll see how long it works considering it's not January. If it's a stepper motor maybe it wont lose it's location again.
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