AC 103 Heavy Duty A C Training

[@chrisholmes4941]

Best Big Truck A/C information I have ever seen!!!!WoW

[@user-ff8pt2gh5m]

By far The best A/C instruction I have ever come across.

[@richardtaylor6242]

proper charge all new components,hi side won't go over 100psi compressor cycles quickly between 21psi and 41psi

[@angelovalentin4050]

If the pressure 35 low side and high side 300 psi it is normal while on high RPM