i checked under hood after no cold air blowing from vents.....i found 2 metal pipes going toward the fire wall, a small one with a cap and a larger one......the smaller pipe was cold and condensation was forming on the pipe, the larger pipe was warm,,,,from what i have read it should be the other way around.....what might cause this?
Definitely sounds like a restriction in the high side (small line). Have you had work done or an accident hit a small animal? A kink in the line will cause a psi drop also. If all looks good I would go with the dryer if its an expansion valve system. If its an orifice system. The dryer is in the low side line and shouldn't cause that issue.