2003 RAM 2500 V8 5.7/ The a/c defrost will not work when I switch it to defrost and I have already tryed the control panel thats not it. If any one can help me please! or help dinose the problem Thanks! ~Mel~ [sm=feedback.gif] IF you have any thing or need more info e-mail is melissaworkspace@yahoo.com

 

what do you mean by it doesn't work?

 

Are you not getting air, or just not cold air?

 

Does the a/c work???????????? Need more details

 

ok so, you want the air/heat on and not the defrost but then when i turn the defrost on it wont switch over to defrost! its like stuck or some thing cause i replaced the control panel and the one i replaced it with still had the same problem do you think it is some thing to do with the wireing or what i dont really know but i do know one thing my warrenty is up

 

i am geting air but not defrost only some times the defrost works it like when it wnats to

 

yes a/c and heat work but defrost does what it wants
in the morring with frost or du on the window suck exp when it doesnt what to work

 

There's a TSB that covers this problem. What has happened, I think, is the same thing that happened to my '04; not once but twice. The blend door in the HVAC housing has broken. The TSB calls for replacing part of the HVAC housing, the blend door, and either one or two servo motors. The AC has to be discharged, the coolant drained, and the entire dash has to be removed. It's a big job, and extremely expensive if out of warranty.

Here's a link to the TSB:

http://dodgeram.info/tsb/2003/24-004-03.htm

 

A real cheesy way to do this is to pull the dash.I bet you the recirc door is broken and is laying on top of the blower motor fresh air inlet.you can cut out the grader on the top of the box,reach in and pull out the broken door. Remove the motor to it, and install the new door and motor. That way you don't have to remove the box completely out of the truck.

 

Thanks this weekend I'll see if thats the problem! I thank all of you for helpin out and if i dont fix it you will know!hehe