AC Takes forever to blow cold.

[Crowz]

Originally Posted by upallnight

I would have to disagree with this statement. The fact that the high side does not develop the pressure needed for the refrigerant to work as designed will lead someone familiar with mobile AC system to conclude that the variable compressor is not working.

Well the problem with that line of thought has to do with ALL of the compressors of this type making no meaningful pressure till the valve in the compressor kicks in. Were back to what I said from the start.

If it takes a long time to start cooling but works flawless eventually and continues to work flawless till its allowed to sit overnight then its the compressor. The gauges serve no real purpose since this symptom is unique to the variable compressor setup and is a guaranteed diagnoses in this situation.

The gauges will tell you the same thing that you find out when cold air comes out the vent in this situation.