Anybody Use Auto HVAC Leak Sealant?

Dave, Definitely do the heater core at the same time, they have about the same lifespan, and you don't want to do the labor twice. My son and his friend did most of it. I helped with the AC connections (you need a specialty tool to disassemble, but it is inexpensive) and I did the trouble shooting of the vacuum connections when the climate controls only blew to defrost when they were "done" The work is not that hard, just labled and take photos. we had a few screws left in a bucket when it was done. we had about 24 boy hours (different from man hours) into the project.

Guys....thanks for the input.

Pete....Yes, I meant the evaporator coil. I am in agreement to go with the real deal, instead of the snake oil.

I priced indivdual parts out. For the evap coil, Ford want's $575. My parts guy, "Fast Eddie", wants $140 for the same coil. But, he readily admits that his part is from China. I have to put another "Ford only" line in as well that will cost $230.

Parts are one thing, but, the majority of the price is obviuosly taking the dash apart to get to everything.

Did any of you guys take the dash apart yourselves to put the coil(s) in? Dave...It looks like maybe you did your own?!?

We did The coil in our Dakota two summers ago. Had to remove three layers of dashboard to get it out. There has to be a better way they could put them in because they are only good for about 120,000 miles.

Thanks Peter! I have been doing some reading on this stuff, and some opinions are that can possibly gunk up your system. A part guys told me today it works primarily by swelling neoprene o-rings. So, that goes along with what you indicate.

Thought I would throw this question out to you guys. Our 2003 Mercury Mountaineer has A/C problems. I sure wished we actually needed it right now, but still using the heater here in the Midwest. But, it will go from winter to summer overnight, and I am trying to decide what to do with this thing.

The Ford dealership wants $1800 to put in a new condenser coil, and line to solve some leaking issues. Not sure I really want to put that kind of money into a 10 year old car with 140K miles on it.

Has anybody used any of the A/C leak sealants on the market? Any suggestions as to which are the best?

I have been told you can use them with no issue, and I have also been told that they will cause problems.