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2003 1500 with heater problem!

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Old 12-19-2013, 09:52 PM
Griffix Griffix is offline
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Default 2003 1500 with heater problem!

I have a 2003 1500 4.7 with a heater issue. When I turn the heat on full blast, the fan sounds like its full blast, but very little heat comes out. Its like its on low. Would this be those "doors" I've seen in other posts? Please help!!!
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Old 12-19-2013, 10:34 PM
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MikeHTally MikeHTally is offline
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Sounds like it. What do you have set for fresh/recirculate?
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Old 12-19-2013, 10:58 PM
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Originally Posted by MikeHTally View Post
Sounds like it. What do you have set for fresh/recirculate?
I leave it on fresh. Is there a site I can find those doors for sale and do it myself?
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Old 12-20-2013, 09:10 AM
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I believe most people use Heater Treater. Do a web search for that. At least should turn up some info for you to read and figure out what you need to do.
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Old 12-20-2013, 11:55 AM
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Sounds like your re-circulation door has dropped down on top of your airbox.
Pull the fan motor underneath the passenger side glove box. There's 3 screw/bolts that hold that thing up in place.
Pull it down and stick your hand up into the plenum chamber.
The re-circ door will most likely be fallen down across the blower fan hole.
You can pull this out and then go the Heater Treater route as I did for a full repair.
When I did this repair to my re-circ door, I managed to refit the new replacement door without having to chop/cut any of the HVAC box as Heater Treater suggested.
The repair looks all stock from the outside
Al
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Old 12-20-2013, 01:32 PM
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Thanks for the help guys! Cheers!

G.
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Old 12-20-2013, 06:46 PM
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yea and just to check if its still working you can pull it out
and hook it up to a battery charger.
most chances are your door fell downa nd its restricting air flow
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Old 12-20-2013, 06:46 PM
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