Variable displacement compressors are new to me. Is the solenoid an intricate part of the compressor or can it be replaced separately. Last night about a 15 minute ride in the heat, then cool air. The car has never cooled like my 02 Chevy pickup.

My XC90 has started blowing hot air for some time after it has been running driven and then it will finally start blowing cold air. So far I have checked and re-charged the system to the proper level, it was actually where it belonged when I first checked it, made sure the clutch was engaged and tur...