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haf2race
 
  2004 no heat only blows cold air - Posted: 12-18-2010, 05:51 PM
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Post #1

Just started today, no heat. Is there a heater control valve? Is the heater core stopped up? Any ideas. I'll start working on it tomorrow morning. Thanks for help.
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PCP
 
 Posted: 12-18-2010, 08:43 PM
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Post #2

no heater control valve unless someone put one on.
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05DaytonaHemi
 
 Posted: 12-18-2010, 08:51 PM
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Post #3

1st Cheak the coolent level might be low, if it's full feel both heater core hoses to see if one is hotter than the other. Might be clogged.
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fannitti
 
 Posted: 12-19-2010, 07:52 AM
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Post #4

check ur t-stat
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clemsonteg
 
 Posted: 12-19-2010, 07:54 AM
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Post #5

My wifes dakota used to do that from time to time, I would also check the thermostat and pull off both hoses that go to the heater core ( not at the firewall but where ever the hose connected) and I would flush out the heater core. Top of the radiator and it would run you out of the truck by then.
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haf2race
 
 Posted: 12-19-2010, 08:42 AM
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Post #6

It full of antifreeze. I'm getting ready to flush heater core, hopefully that will fix it.
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Voodoo
 
 Posted: 12-19-2010, 08:46 AM
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Post #7

Is there no heat on both sides or just one ? If that's the case it could be the famous Door...
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haf2race
 
 Posted: 12-19-2010, 02:18 PM
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Post #8

flushed heater core and now heats good 120 degrees. I also did the wife's Durango which wasn't heating good either. Now her's is 134 degrees coming from the vents. Thanks for all your help.
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clemsonteg
 
 Posted: 12-19-2010, 05:24 PM
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Post #9

Quote:
Originally Posted by haf2race View Post
flushed heater core and now heats good 120 degrees. I also did the wife's Durango which wasn't heating good either. Now her's is 134 degrees coming from the vents. Thanks for all your help.
Im not sure what clogs them up like that, what scares me actually is that whatever sludge is in there could be in the rest of the engine as well.
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haf2race
 
 Posted: 12-19-2010, 07:41 PM
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Post #10

Just took it a second drive since flushing. It did it again, no heat. Turned the vent selector knob and it started heating again. I quess its the damn blend door. How much of a pain is it to pull dash?
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haf2race
 
 Posted: 12-20-2010, 11:27 AM
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Post #11

What parts do I need to fix the blend door? Is this something I have to get from dealer or can I rig something?
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weedahoe
 
 Posted: 12-20-2010, 01:16 PM
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Post #12

http://www.dieseltruckresource.com/d...d-t210483.html

http://www.turbodieselregister.com/f...-pictures.html
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Daking
 
 Posted: 12-20-2010, 08:13 PM
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Post #13

I think I have the same problem.

No heat.

I thought it may be because of my electric waterpump. I run no thermostat, so the pressure to the heater hose is not great. I did had a "****" blocker (restrictive plate) in the top hose.

My heater lines to get hot, so the core is getting hot.

On a recent off-road journey, The heat started working for no reason. Granted, we wore pointed to the sky, and pointing to the devil at times. I thought maybe the extream angles moved out any air bubbles.

But, now I have no heat again.

I just picked up an electric heater.. for now.
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haf2race
 
 Posted: 12-21-2010, 10:21 AM
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Post #14

has anyone used the heatertreater blend door fix?
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Daking
 
 Posted: 12-21-2010, 11:55 AM
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Post #15

What is it?
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haf2race
 
 Posted: 12-21-2010, 12:48 PM
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Post #16

www.heatertreater.net they've fixed the broken blend, mode and recirc doors when the factory junk breaks
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haf2race
 
 Posted: 12-22-2010, 04:05 PM
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Post #17

Just did the heatertreater blend door fix. Both my doors were broken. This job was very easy to do with minimal parts to be taken off. I highly recommend this to anyone with a blend, mode or recirculation door problem. Took at 3hrs to fix both doors. all for less the $200. Sure beats the $900 the stealership was going to charge and the kit has a steel parts, no more broken doors here. Thanks Chris, you are the man.
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99Slobra
 
 Posted: 12-22-2010, 08:29 PM
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Post #18

I get warmer out out of the passenger side of my dash than my driver side..

wtf..hahaha
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