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2004 Dodge Ram 1500 Question: AC blowing cold air on driver side only

 

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Jeff B, 4.7L V8, Lady Lake, FL, February 27, 2009, 15:58
 Rookie

The AC is blowing cold air only on the driver's side. On the passenger side, the air is blowing out warm. Anyone know what might cause this or how to fix it? Thanks!

4 Answers
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  • Answer #1

    February 28, 2009, 12:15
     Master

    You don't mention if you have Dual Zone temp controls, but judging from your description I have to assume that your vehicle is equipped with Dual Zone. In this case the "Blend Air" doors in the heater housing are independent of each other and each have their own actuators allowing the individual adjustment of tempurature from right to left vents. In a single Zone system, the blend air door is one piece, thus the temp difference between right and left vent is not likely if the any of the components failed. The HVAC control head, wiring, actuators or blend air doors may have failed. A competent technician should be able to easily diagnose which component has failed.

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    Visitor, June 04, 2010, 22:48

    that was not much of an answer dude

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    Visitor, July 30, 2010, 09:37

    4real...what help

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  • Medium-star Best Answer
    Visitor, August 11, 2010, 19:52

    If you have a 02 to 06 dodge ram and the driverside is cold and the passenge side is warm. The fix is to charge your a/c system. Your low on refrigerant and the evaperator is not full.

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    Visitor, August 18, 2010, 04:07

    this is not true

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    Visitor, September 17, 2010, 19:03

    there is a tsb for a blower motor and a reflash on the cpu it needs to be done by the dodge dealership. the parts are around $250.

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    Visitor, July 09, 2011, 13:32

    this is very ture these systems shutdown the passinger side when low on refridgerant!!!!

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  • Answer #3

    Visitor, September 01, 2010, 08:00

    Very common problem, normally the door shaft is broken and the door remains in close positon. Read remainder of comments

    The most common problem is the HVAC box. Inside 4 moveable plastic panels control the air flow to different chambers. The common issue is the plastic shaft breaks. The only way to replace these panels requires a complete dash and HVAC removal, 6-8 hours of labor, AC coolant needs to be drained and later refilled. Mine broke twice, first one was the lower panel under warranty and the second had 2 broken panels. I did it myself and replace them with metal panel from "Heater Treater".

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  • Answer #4

    June 09, 2012, 08:23
     Rookie

    So whomever gave advice to charge the AC... Brilliant!
    I have a 2004 Dodge 1500 4 door with HemP power. AC was only blowing on drivers side and passenger's side was blowing warmish. Took advice to charge AC as follows:
    1. Go to your local auto store and buy the can of AC juice with the hose attachment and gauge built in.
    2. Go home or to somewhere you can work without being bothered
    3. Start your engine and turn the AC on Max
    4. Hooked up can of AC juice to the LOW side port (passenger side near the fire wall for HemP)
    5. Shook can well and hooked up can to AC port and read gauge... darn thing was low.
    6. Squeezed trigger on can and every 3-4 seconds turned upside down and back upright.
    7. Charged to where arrow said (accounting for the temperature was built into the gauge)
    8. Noticed AC system that was really noisy became much quieter as charge approached the green
    9. Disconnected can from AC port and replaced cap.
    10. Sat in truck and enjoyed the chilly cold that had replaced the weak a$$ AC I used to have.

    **Disclaimer: cannot guarantee you will get the same results but cold is now blowing out of both sides of the dash vents.

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    Gussy Ray, July 23, 2012, 15:29
     Rookie

    Well mechanic says I need to replace ac door under passenger side dash. Cost???????? He said most of the door section would have to be taken apart and a new door motor assembly installed. Several hours involved at $85.00 an hour. Well I took your advise and spent $30.00 at the parts store and bought a can of ac juice with a gauge included with the can. Followed directions and guess what!!!! I am now blowing cold on both sides!!! So whoever gave the advice gets my vote!!! Thanks!!!! 2004 Ram 2500 Diesel

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    anony, September 26, 2014, 06:26
     Rookie

    Exactly the issue! I did the same and my air is now working perfectly, mechanic told me it would need to be worked on.
    Apparently that is the stock answer. Its worth the $30 to give it a shot.

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