The cooling fans would only turn on when the fan switch is activated by the coolant temperature when the A/C is not used and this can take up 20 minutes of running time or more.
When A/C is turned on and the compressor does not engage, the cooling fans would not work as well.
You need to find out why the compressor is not engaging. It could be a blown fuse, low on refrigerant, faulty A/C switch, relay or PCM.
Try swapping the A/C clutch relay.
Saturday, September 18th, 2010 AT 1:15 PM