1st Gen Dakota Tech 1987 - 1996 Dodge Dakota Tech - The ultimate forum for technical help on the 1st Gen Dakota.

heater controls

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Old Nov 5, 2006 | 08:40 PM
  #1  
justin1635's Avatar
justin1635
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Joined: Oct 2005
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Default heater controls

in the last little while, my heater has been quirky. the defroster works fine. but if i set it to the front vents. it goes into like, half front vent and half floor. so basically i cant get full heat out of my front vents only. anyone help me?
 
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Old Nov 6, 2006 | 01:05 AM
  #2  
dodgerules86's Avatar
dodgerules86
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Joined: Dec 2003
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From: Sycamore, Illinois (displaced to Arkansas)
Default RE: heater controls

You probably either have a bad vacuum line, or one of the doors in the HVAC unit aren't engaging as they should.

[IMG]local://upfiles/948/6044D7E1F83E47D7B5247AACB86C5575.jpg[/IMG]

[IMG]local://upfiles/948/59892391E2B2455F9D62BB0C2A4487D4.jpg[/IMG]
 
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Old Nov 6, 2006 | 03:30 AM
  #3  
justin1635's Avatar
justin1635
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Default RE: heater controls

i know the location of my vaccuum line hookup. is there anyway i could possibly test each line to see if there is suction?
 
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Old Nov 6, 2006 | 03:48 AM
  #4  
Chump's Avatar
Chump
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Joined: Sep 2005
Posts: 550
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From: Colorado
Default RE: heater controls

The best tool to test HVAC vacuum circuits is the MityVac.
www.mityvac.com



 
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Old Nov 6, 2006 | 12:27 PM
  #5  
fishlessman's Avatar
fishlessman
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Default RE: heater controls

on my 89, i had to take the panel off around the controls and lubricate some of the pivot points were the grease had hardened up on them. worked on mine as you could feel some binding sliding the heater ***** and the vents wouldnt fully engage.
 
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