I rarely use the A/C in my car, but I got caught in the rain yesterday and it was a must with our 95 degree weather. The A/C ran fine- cold as always.

Being supercharged, I often turn on the A/C after I arrive to my destination just to cool down the engine bay.

Upon arriving home last night, I switch the A/C on to do my usual 1-2 minute cool down and NOTHING. Neither fan switched on, and no cold air came out of the vents.

Here is what I have done so far:

-Checked, sanded, and tightened the ground
-Swapped relays
-Checked all fuses
-Jiggled all the wires, checking all the connections

Nothing has seemed to help. I kind of think it's the fan, but how can I safely check it? Also, if the system is low on refrigerant, will the A/C work properly? I recharged it after I finished rebuilding it.

Thanks.

 

take your DMM and test the fan plug underneath the pass dashboard.

 

Where under the dashboard? Is it labeled?

 

Thanks guys! It was just the low pressure sensor keeping the system from operating. It turns out that I have a slow leak.

 

Why would turning on the AC cool down your engine? It would do the opposite--heat up the engine as your engine has to drive another belt.

Turning on the heat full blast will help to cool down your engine as the heater uses engine coolant.

Am I missing something here?

 

fans would turn on with engine off , a/c's on to help cool down,