I have a 2006 Ram 1500 Laramie 4x4 with a 5.7. I am having a problem with condensation on the evaporator case underneath the glove box. I have done extensive searching for a solution. I have cleaned the drain tube and extended it below the frame rail. I don't believe the coil is leaking (no antifreeze smell plus it cools fine) I feel I am just overlooking some thing.

 

You may have low refrigerant...? Have you checked that out...?

 

I had the refrigerant checked it was low so i had them fill it but I'm still having the same problem

 

Did your extensive searching show you this?

https://dodgeforum.com/forum/2nd-gen...rain-hose.html

 

I read through that already did what was suggested and am still having an issue.

 

http://lmgtfy.com/?q=Dodge+Ram+Conde...passenger+dash

 

I did Google that multiple times in multiple configurations before deciding to post on here. Maybe I'm wrong but I just figured that on a Forum dedicated to Dodge vehicles maybe I could find some help to fix a annoying problem on a otherwise great vehicle. I apologize Izero as you clearly believe that I posted a question solely to waste your time that was not the case but i am sorry none the less. If any one has any useful suggestions I would appreciate it

 

Not at all, but you said you did an "extensive search" but this is one of the most common issues for 2nd and early 3rd gen Rams, here are some links (some might not work b/c Dodge Forum blocks some links) took me all of 5 seconds to find.

And there were only very MINOR changes between 2nd and 3rd gen dodge ram HVAC systems. So replace the condensate drain tube and I bet that will solve your issue, if not then you have low refrigerant pressure. By best guess is that even though you extended the drain line you didn't look for cracks or damage, easiest way to find it all is to run the truck at idle with the A/C on full blast and get under there to look for leaks.

https://dodgeforum.com/forum/3rd-gen...oor-wet-2.html

http://townhall-talk.edmunds.com/direct/view/.f1de1fb

http://www.ramforumz.com/showthread.php?t=94896

http://www.cumminsforum.com/forum/94...floor-wet.html

http://www.pirate4x4.com/forum/tow-r...loorboard.html

http://www.dieseltruckresource.com/d...t-t270875.html

http://www.dieselbombers.com/12-valv...oor-board.html

 

Checked drain line no leaks still having problem the thing that gets me is that the refrigerant is good. And all the water is coming out of the tube I installed

 

Did you replace the existing tube or just extend the old tube?

If you just extended it then you didn't fix the issue.... should replace the entire tube and then extend it as instructed.

If that doesn't solve the problem then you might have a bad evaporator, or your compressor is not working correctly.

HVAC systems are very hard to troubleshoot without the proper tools.... are you able to vacuum down the whole system and see if it will hold at or below zero? If not then I think it might be time to let the dealership give it a shot....

If you are still going to troubleshoot yourself then what you might be experiencing is the coil freezing up which causes condensation to form on the case around the coils.

Air Conditioning Evaporator Coil Freeze-ups are caused by:
(1) Low or incomplete airflow over the evaporator coil
(2) Expansion Valve Problems <== What I expect might be your issue (except I think we have an Orifice Tube, which does the same thing basically)

(3) Low refrigerant charge


Make sure (1)and (2) are resolved before considering (3). (If you don't do this then you can easily overcharge the system which will cause damage, b/c when the coils are frozen both pressure gauges (high and low side) will read low and the first thing a lot of rookie HVAC techs do is grab the refridgerant bottle)



(1) Check for any reasons for low air flow. Check the condition of the belts, belt tension, dirty filters, dirty blower wheel fins, obstructed return-air duct or closed dampers.


(2) Check for proper operation of the expansion valve. (If applicable) Be sure that the expansion valve is not stuck open.


(3) Lastly, Check the refrigerant level. If it is low, start looking for the leak! (once the coil has thawed completely)


This thread might also help you:

https://dodgeforum.com/forum/1st-gen...solutions.html