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#3228583 - 12/26/13 06:54 PM '03 Dodge Ram HVAC issue
Colt45ws Offline


Registered: 08/15/06
Posts: 8757
Loc: Central Washington
My sister has a 2003 Dodge Ram 1500. It has no heat coming out of the driver side vents. It has great airflow but its ambient temperature. On the passenger side the vents have heat coming out just perfectly. Im scratching my head trying to figure out what would cause that. Any ideas?
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2002 Ford Crown Vic PI, 187k "Highwayman"
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#3228593 - 12/26/13 07:01 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
Chris142 Offline


Registered: 06/05/03
Posts: 13987
Loc: apple valley, ca
Blend door problem?
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#3228606 - 12/26/13 07:20 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
Colt45ws Offline


Registered: 08/15/06
Posts: 8757
Loc: Central Washington
Yeah, it looks like the dash has to come out so the HVAC box can come out. Probably a broken blend door from what Ive found. [censored].
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2002 Ford Crown Vic PI, 187k "Highwayman"
Ex-Kootenai County, ID Unit #42
Maxlife 5W20
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#3228633 - 12/26/13 07:57 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
yonyon Offline


Registered: 03/06/12
Posts: 3492
Loc: NJ, USA
If she can live with it until a warm day comes along it's really not that bad. It's about as easy as dashboards get. Take your time, note where everything goes, and you're looking at maybe 2 hours to yank the dash, 1 1/2 to put it in and if you vaccuum the carpet first you don't even have to get dirty.

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#3228649 - 12/26/13 08:13 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
Chris142 Offline


Registered: 06/05/03
Posts: 13987
Loc: apple valley, ca
You may have to buy the whole box. Often they dont offer just the doors
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Z400 Lucas 10w30
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#3228669 - 12/26/13 08:41 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
Jimmy9190 Offline


Registered: 02/17/07
Posts: 3299
Loc: Clermont, Florida
It might be a bad blend door actuator. If it is anything like a Dakota it will have 2 actuators on the outside of the hvac box and 2 on the inside of the hvac box. There may be a broken actuator on the outside of the box above the gas pedal. It's worth a look before pulling the dash.
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#3228832 - 12/27/13 12:57 AM Re: '03 Dodge Ram HVAC issue [Re: yonyon]
Colt45ws Offline


Registered: 08/15/06
Posts: 8757
Loc: Central Washington
Originally Posted By: yonyon
If she can live with it until a warm day comes along it's really not that bad. It's about as easy as dashboards get. Take your time, note where everything goes, and you're looking at maybe 2 hours to yank the dash, 1 1/2 to put it in and if you vaccuum the carpet first you don't even have to get dirty.

Yeah, shes out of town for a week, and Im only here (Im at my Dad's place in Las Vegas) through Sunday so Im trying to do as much as I can. I already did spark plugs (the old ones were wider than I could measure with a gapper!) and the downstream O2 sensor that was setting a P0037. O'Rilleys is supposed to get me the door Saturday morning, so I will probably do the tear down tomorrow (Friday) so its ready to go in as soon as I get it.

Originally Posted By: Chris142
You may have to buy the whole box. Often they dont offer just the doors

They do. I have a Dorman replacement on order. Must be pretty common problem if they are making them.

Originally Posted By: Jimmy9190
It might be a bad blend door actuator. If it is anything like a Dakota it will have 2 actuators on the outside of the hvac box and 2 on the inside of the hvac box. There may be a broken actuator on the outside of the box above the gas pedal. It's worth a look before pulling the dash.

I can see/hear the actuator moving so its fine, I guess they just break.
_________________________
-Colton
2002 Ford Crown Vic PI, 187k "Highwayman"
Ex-Kootenai County, ID Unit #42
Maxlife 5W20
Lubegard Bio/Tech oil treatment
Ultra XG2

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#3229239 - 12/27/13 03:32 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
Titan104 Offline


Registered: 08/15/06
Posts: 59
Loc: Tennessee
Heatertreater.net offers blend door replacements and instructions.

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#3230183 - 12/28/13 05:40 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
Colt45ws Offline


Registered: 08/15/06
Posts: 8757
Loc: Central Washington
So the blend door isnt the problem. I got the HVAC box cut open and everything is in one piece. I have no idea; it makes no sense. I threw in the towel. She'll just have to live with closing the driver vents when she wants heat.
_________________________
-Colton
2002 Ford Crown Vic PI, 187k "Highwayman"
Ex-Kootenai County, ID Unit #42
Maxlife 5W20
Lubegard Bio/Tech oil treatment
Ultra XG2

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#3231222 - 12/29/13 06:12 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
yonyon Offline


Registered: 03/06/12
Posts: 3492
Loc: NJ, USA
Ouch! That was kind of a lot of work to come up with nothing.

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#3231484 - 12/29/13 10:19 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
Colt45ws Offline


Registered: 08/15/06
Posts: 8757
Loc: Central Washington
Little bit, yeah.
_________________________
-Colton
2002 Ford Crown Vic PI, 187k "Highwayman"
Ex-Kootenai County, ID Unit #42
Maxlife 5W20
Lubegard Bio/Tech oil treatment
Ultra XG2

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#3234734 - 01/02/14 01:22 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
951Indy Offline


Registered: 10/09/09
Posts: 179
Loc: Indy
Did you pull the actuator off the shaft to verify the shaft was moving the door (internally)?

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#3234842 - 01/02/14 03:34 PM Re: '03 Dodge Ram HVAC issue [Re: Colt45ws]
Colt45ws Offline


Registered: 08/15/06
Posts: 8757
Loc: Central Washington
Yup. Both doors are moving.
_________________________
-Colton
2002 Ford Crown Vic PI, 187k "Highwayman"
Ex-Kootenai County, ID Unit #42
Maxlife 5W20
Lubegard Bio/Tech oil treatment
Ultra XG2

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