A/C blows no cold air?

No I haven't tryed that. I will as soon as I can.

I tryed to find the pressure switch but having difficuly locating it. Please give my an idea where it may be.

So I was driving on the interstate and suddenly, fog or something came through my vents and my air conditioner stopped working. However, when I turn the air conditioner on the clutch does seem to engage and I lose a little bit of power.

I tried to buy the manifold gauges to read the pressure but they were cheap (harbor freight) and just ended up emptying the system. And the clutch stopped kicking on after the 134 was evacuated.

I returned the gauge set as I went through two and they just emptied my system due to leaks in the high and low lines.

Should I just switch out the evaporator and thermo switch and I would have no question if it would work? Or could it be something else.

Thanks!