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2003 ram a/c problem,blower,help

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Old 04-20-2009, 08:02 PM
bosanci28's Avatar
bosanci28 bosanci28 is offline
Join Date: Jun 2007
Vehicle: 1995 dodge ram 1500 5.2
Location: Rocklin,Ca (Sacramento)
Posts: 146
Default 2003 ram a/c problem,blower,help

i have my 2003 dodge ram 4 dr v8
and my a/c inside cab blower is not pushing air ,, at high spped,,
it works ,,,but not okay,,very litlle air is blowing inside,,

i go from the low to high it works ,,but the fans it looks that is going slow and then pickups litlle at high and that all

i have check the a/c and is filled full,,and the pipe is cold!,

and other thing,, when i put to max i can hear big wind noise under the dash at passager side,, the big black box under the dash ,,im thinking that something is not opening inside,maybe stock,,or broken,,

any advice on this will appreciate,,
1995 Dodge Ram 1500 - v8 5.2l 252k miles
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Old 04-20-2009, 09:22 PM
tafet's Avatar
tafet tafet is offline
Join Date: Feb 2007
Vehicle: 03 Ram 1500 4.7
Location: Scott AFB
Posts: 192

How does everything work if you run the vent or heat? Does the fan then work correctly?
I know that these trucks have known issues with the blend doors, but if that was the problem you would probably just have heat. I beleive there is another door for the ac somewhere by the heater core. I don't have my laptop with the manual for my truck or I'd try to look it up. Maybe someone else will chime in with the correct name. Could also be the blower motor going bad..
2003, 1500 4.7, CAI, detroit true track, 4.10 gears, HO cams, e-fan, jet scoop, 180 stat, TCI torque converter, 69mm fastman TB, 08 intake manifold, underdrive pullies, moes fan shroud delete, Gibson shorty headers, magna flow hi flow cat split to dual exhaust after the cat, superchips tune.
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Old 04-20-2009, 10:48 PM
MikeHTally's Avatar
MikeHTally MikeHTally is offline
Join Date: Aug 2007
Vehicle: 2003 1500 QCSB Hemi 4x2
Location: N. Florida
Posts: 4,621

Sounds like the resistor block, but could be the blend door. Can you hear the fan change speed through all four settings? Hope it's the resistor block -- easier to change and maybe cheaper, too.
2003 1500 QC Hemi

2006 Chrysler 300C 2008 1/2 Mazda Speed3
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Old 04-30-2009, 01:25 PM
jpk5930 jpk5930 is offline
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Join Date: Sep 2008
Vehicle: 2006 Dodge Ram 2500
Location: Harrison, AR
Posts: 8
Default Recirc door

In case it's relevant, I had all fan noise, not much air on my 2006. I took out the glove box to have a look-see (no tools required...BONUS!) and shined a light up to see through the plastic grating that I had no air recirc door. I commenced to break off the worthless grate and reached down to find it laying in the bottom of the box, preventing the fan from doing it's job. I pulled it out, and now have all kinds of air, just can't shut off outside air until I get a new door.

For you, maybe the problem can be found by going in like I did and making sure the door is in place, doesn't move when you press a pencil against it, etc.

Check out heatertreater.net for a video series that details all the various blend doors and troubleshooting. 3 vids, 6-7 mins each. Well worth the time!
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