Originally Posted by that_guy

No there shouldn't be any leaks or dye. When you say end caps are you talking about the connection between the a/c lines and compressor. If so there is an o-ring and gasket kit that you can replace there.

Originally Posted by thecaminokid

Ok everybody, I have fallen victim to the A/C problems of the Durango. I have a 2003 with front and rear A/C and heat and my problem is just like everyones else's, my A/C should be colder. I noticed that E-fan was not working so I replaced it and it helped a little but not as much as I would have thought. I put it into the shop to have it checked and they told me that the compressor was not cycling on and off but it was just staying on. They said I needed a new compressor, dryer, and expansion valve and it would be $x,xxx. I know that they checked the A/C charge to make sure it had the proper amount before they finished there diagnosis. I wound up replacing everything myself to save some money and took it back and had them evac and recharge the system with the proper amount(2.44lbs). The compressor still stays on and will not cycle. Out of frustation I added another pound and the compressor startd to cycle but was blowing hot air so I let some out and it continued to stay on. I took it back to the shop and they said they found nothing wrong but could see that the compressor would not cycle off still. I have swapped relays, checked fuses, and beat my head against the wall and nothing seems to work. I have installed a valve in the heater line and shut off the flow of coolant to the heater core and that did nothing for the A/C temp. On top of that the rear vents do not have the airflow that they should, I'm thinking that may be the fan getting weak(??). Anyone have any ideas?

Originally Posted by that_guy

Are any of the lines leaving the a/c compressor getting cold? If not that would mean that the compressor isn't cooling the refrigerant, which could be for a couple of reasons, but it would rule out the blend door.