How To Check Ac Compressor Pressure. It will look something like this. During operation refrigerant is returning to the compressor from the cooling evaporator coil in this line.
I was originally told it was the evaporator that needed to be replaced. In most cases dirty coils are the reason for the AC compressor failure. Now Im wondering if the compressor was bad in the first place.
System Pressure Chart Get a quick look at what an average AC system looks like along with the compressor manufacturer and what the specific R-134a requirements are for your car.
Step 4 Examine no ground at the relay coil. Expansive valve open or leak. You will notice that with the car running and the AC off the pulley ran by the belt will be spinning but the front hub will be stationary. The compressor will have two metal tubes coming out of the back or sidetop of unit.
