I would appreciate any help I can get, I have two problems , lets start with the heat as we are comming into the cold weather, no air is blowing through the vents front or side at whatever speed i put the blower at. I can hear the blower going stronger on max setting but no air flow out the vents, only very slight out the side vents and it is hot. The rear seat center vent has great air flow but is comming out at regular outside temperature not hot. Guess I may have two seperate problems here.

Now for the AC I have tried the stop leak and it just blows through in 1/2 hour and holds nothing, I only tried the cheap stop leak a few times and many cans hope I didnt make the system worse. ANd can see no die where it is leaking, should I try the more expensive stop leak? Is it my evaporator, I have no idea if it has been replaced?

Appreciate any thoughts.