Automotive Air Conditioning Information Forum

I maintain a personal inventory of Evap Cores, Condensers, heater cores and A/C hoses for my hobby of collecting and maintaining older Dodge Grand Caravans.

Every time I get a new one I used to wonder if it's got any leaks (Oh, I worry about the AC equipment as well :-).

installing it immediately ...

If anyone ever wants to do this resto on their vehicle HVAC housing, I found a much better way via a smart guy who does this type of thing a lot. He suggested Mann Ease Release. It's sold on Amazon etc. It's a spray specifically made to spray on and release hardened epoxy resins.

This is gonna make ...

You might also want to check the lines running from front to back. They can become corroded, degraded, and can leak, especially if they run through a wheel well.

My co-worker had a Grand Caravan from that era. He had leakage of refrigerant on the lines going/coming from the rear unit, Dodge ...

Option 1: I've never tried either option, but how about spray-on foam-in-a-can, the inexpensive type from your local home center that's designed specifically for sealing around windows? Unlike expanding foam that will fill gaps one inch or wider, the window variety features minimal to no ...

Hi friends!

I'm working on a 1999 Dodge Grand Caravan which I love dearly and consider a family member. She's been with me a long time and brought me safely home many times from far away road trips.

So I'm in the process of changing out the Evaporator Core and while in there, I decided to pressure ...

To ensure a leak-free system, I use Nylog Blue on every o-ring, threaded connection, Schrader valve, Schrader valve cap seals, etc. "A little dab will do ya." :mrgreen:


Awesome!

Very helpful. If it's worked well for you then it most likely would work well for me.

I can see how it might be ...

Good post.
Did you ever apply heat to the bolt area?


Hi Tim!
Thank you! Just hoping to be helpful. Ya know, I have found my own posts come back and help me years later that I forgot about :-)

Heat? Yes sir. I did try that but it was not a valiant effort. I used a mini butane torch to heat the ...

A note to Cusser.......

When I looked closely at the tips of the two bolts that I could not remove, it seems that there was more deformation of the threads than corrosion on them. Obviously some rust revealed by the rust stains on the back side of the attaching plate. That rust made it impossible ...

So glad that you were finally able to remove the TXV--after days of work, I'm sure. Been there, done that...although not for this particular vehicle.

We're always interested in how our members solve MVAC problems, regardless of whether we have the same vehicle.

On to the next time consuming ...

Well that was not fun.

It took me quite a bit to get the heads drilled off clean enough to pull the valve out. It's very difficult to drill a concentric hole in that bolt, which is recessed and through the T-25 machined slot. Seems I went off center at some point and ended up drilling at an angle ...