low pressure valve

The A/C low pressure value is located in the line close to the firewall. On L4 it is easy to locate and work with; however, on V6's it is very close to the exhaust manifold so be careful. The high pressure valve located in the front of the emgine compartment. With car A/C's now charged with R-134a the high pressure valve is larger than the low pressure valve. Good Luck!