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  1. How to
  2. Diagrams
  3. Typical Automotive A/C System
TYPICAL AUTOMOTIVE A/C SYSTEM DIAGRAM

*Automotive A/C systems may vary from one application to another. Consult the owner’s manual for system specific information.

Low-Side Service Port

The low pressure service port (low-side port) is located in the line that runs from the compressor through the evaporator (firewall) and up to the condensor on the low pressure (suction) side of the system. R-134a Recharge hoses will only fit on the low pressure service port on all R-134a vehicles.