96 Intrepid Air Conditioner Problems PLEASE HELP!!
 

Ok, i hoping not to make this post to long but it seems to be a long story!

About 2 months ago I bought my girlfriend a 96 Dodge Intrepid w/74,000 miles on it. We havent had any problems at all, short of the normal air filter, tune up things that i did myself.

We were on a trip about 4 hours, and half way through the air just stoped blowing cold, and blew a strange "fog" out of the vents that had no odor. When we got to where we were going, i stoped at the local autozone bought a little kit, and added about a 1/2 a can of combo 134a/oil/leak stop. The kit had a gauge, and i was carefull not to overfill the system. The kit worked great, the air was ICE cold and everyone was happy.(i felt like such a mechanic!).

So on the way home about an hour into the trip, once again i saw the fog, only it didnt get warm...it just eventually stoped, after turning it off and back on. This hasnt happened since, but im still wondering what it would be?

Ok, now we all know the background the true problem is: After running the air for a while it seems like the blower motor eventually, and incramentally slows untill it is bairly blowing at all, if you turn the a\c off and just use the vent, it eventually speeds back up...this has really got me confuced? I just cant imagine it being the blower motor, because it blows so strong after turning off the a\c.

It stays ICE cold the whole time....so i really just dont get it. I have very little experience with vehicle a\c, and about as little money to through at the problem! I do however have alot of experience with car repair, and am a quick learner

PLEASE HELP ME!!