I think I figured out what was wrong with mine. After installing my A/C manifold guages on a 100 degree day with a/c full blast. High side pressure read 140psi and low side read 65psi. This in turn could only mean one thing to me and i was right. Freon was low. I added freon untill pressures ran 30 low side 195 high. A/C now cold. Wife and kids happy.All is good.