FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Refrigerant Pressure Inspection

1. Connect the manifold gauge set.
2. Operate the engine at 2,000 rpm and set the air conditioner to maximum cooling.





3. Measure the low - and high-pressure sides.

Normal pressure

Low-pressure side:
21-43 psi (147-294 kPa)

High-pressure side:
171-235 psi (1,177-1,619 kPa)