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Heater is not blowing air out of the vents

Tiny
ATTICUS 2010
  • MEMBER
  • 2001 DODGE TRUCK
  • 5.9L
  • V8
  • 4WD
  • AUTOMATIC
  • 123,345 MILES
My truck's heater is not letting an air out of any of the vents. The vent doors actuators are not letting any of the doors open. What can I do? Help!
Wednesday, October 5th, 2016 AT 7:12 PM

20 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Have you checked under the hood at the firewall for a disconnected vacuum line?
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Wednesday, October 5th, 2016 AT 9:52 PM
Tiny
ATTICUS 2010
  • MEMBER
  • 9 POSTS
No, I have not, but thank you. I will look to see and let you now.
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Thursday, October 6th, 2016 AT 9:52 AM
Tiny
ATTICUS 2010
  • MEMBER
  • 9 POSTS
I checked the vacuum hoses and there was no leaks.
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Thursday, October 6th, 2016 AT 6:53 PM
Tiny
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So is it only blowing out on the windshield?
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Thursday, October 6th, 2016 AT 9:13 PM
Tiny
ATTICUS 2010
  • MEMBER
  • 9 POSTS
I get very little air coming out through the top vent and the middle and bottom. Also when I turn on the heater to hot or cold they are reversed.
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Thursday, October 6th, 2016 AT 9:53 PM
Tiny
SATURNTECH9
  • MECHANIC
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Is this auto climate control or manual controls?That is strange that the temp is backwards. When you move the knob to tell it to come out a different vent does any of the air flow out of any of the vents change?
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Friday, October 7th, 2016 AT 12:47 PM
Tiny
ATTICUS 2010
  • MEMBER
  • 9 POSTS
It's manual, No there is no change on the amount of air coming out.
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Friday, October 7th, 2016 AT 1:55 PM
Tiny
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Have you checked the control head itself?For bad connection etc?
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Saturday, October 8th, 2016 AT 12:36 PM
Tiny
ATTICUS 2010
  • MEMBER
  • 9 POSTS
How do you go about checking it?
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Saturday, October 8th, 2016 AT 3:24 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,323 POSTS
Hello,

this sounds like an actuator is not working or you have a bend door that is broken. Does your truck have a cabin air filter? here are a couple of guides to help you

https://www.2carpros.com/articles/how-to-change-an-air-cabin-filter

and

https://www.2carpros.com/articles/replace-blend-door-motor

Please let us know what you find so it will help others.

Best, Ken
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Monday, October 10th, 2016 AT 5:19 PM
Tiny
ATTICUS 2010
  • MEMBER
  • 9 POSTS
We found out that the Heater Blend Door Actuator is the problem, the only thing is that my truck is a 2001 1500 dodge and I can't find one. Would like some more help if you know where to get one.
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Monday, October 10th, 2016 AT 8:42 PM
Tiny
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The blend door controls the temperature do you mean the mode door?
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Monday, October 10th, 2016 AT 10:24 PM
Tiny
ATTICUS 2010
  • MEMBER
  • 9 POSTS
The part that is broken is the blend door actuator it is not opening that door that it's suppose to open.
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Monday, October 10th, 2016 AT 10:33 PM
Tiny
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The blend door controls the temperature to make it hotter or colder it doesn't control where the air flow comes out. The mode door controls the air flow.I wil help you find the blend door if that's the one you say is broken.
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Tuesday, October 11th, 2016 AT 8:49 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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I went to amazon they had this one is this what it looks like?

https://www.amazon.com/Dorman-604-207-Heater-Blend-Actuator/dp/B001C6L5GY/ref=sr_1_fkmr2_4?s=automotive&ie=UTF8&qid=1476201177&sr=1-4-fkmr2&keywords=2001+DODGE+TRUCK+blend+door+actuator

Best, Ken
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Tuesday, October 11th, 2016 AT 8:53 AM
Tiny
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That doesn't fit a 2001 dodge ram I used the application guide on the parts listing to check
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Tuesday, October 11th, 2016 AT 8:57 AM
Tiny
SATURNTECH9
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http://m.ebay.com/itm/331978834509?_mwBanner=1
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Tuesday, October 11th, 2016 AT 10:34 AM
Tiny
SATURNTECH9
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There is the blend door actuator if you search that part number on eBay Amazon etc you might be able to find it cheaper.
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Tuesday, October 11th, 2016 AT 10:35 AM
Tiny
ATTICUS 2010
  • MEMBER
  • 9 POSTS
Yes that is the part that is broken and not working. I also found it on E-bay for that price will check to see if I can find it for a little less then that. Thank you for all your help, you help me a lot.
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Tuesday, October 11th, 2016 AT 5:09 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Glad we could get it fixed please use 2CarPros. Com anytime we are here to help

Best, Ken
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Tuesday, October 11th, 2016 AT 6:53 PM

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