Today I had the system evacuated and converted to 134. At first the compressor didn't kick on and the techs were thinking it was an electrical issue. Turns out, when the tech pulled it off of the lift and drove it a little, some divine intervention happened and it started to blow cold. I only have speeds 3 and 4 of the blower speeds working so tomorrow I will go to the junkyard and fetch a resistor from a previa. I noticed that the ac doesn't blow cold while at a stop, but when the engine becomes under load, i hear a click in the pass side dash area and then it starts to blow colder. Do you know what this is? Is something going bad? Also, my rear a/c isn't blowing and it seems that the slide knobs to turn the temp "blue"(left) doesn't want to go all the way...like maybe something is binding? I'm pretty sure it is happening to the other sliding knob too.