Chapter 42

The Air-Conditioning Service Process
Determining Refrigerant Type
Acid Tests
Air Conditioner Capacity
State of Charge
Diagnosis of Air-Conditioning Problems
Performance Testing
Inspecting the Condenser for Airflow Restrictions
Inspecting the Evaporator Housing Water Drain
Eliminating Air-Conditioning System Odors
Cabin Air Filter
Air-Conditioning System Conditions
Maintenance and Repair
Identifying the Refrigerant Type
Testing for Leaks Using a Sniffer
Testing for Leaks Using a Sniffer Device
Testing for Leaks Using Dye
Testing for Leaks Using Nitrogen
Reclaiming and Recovering the Air-Conditioning System
Recycling, Labeling, and Storing Refrigerant
Inspecting the Condition of Removed Refrigerant Oil
Air-Conditioning System Flush
Additional Air-Conditioning Filters
Inspecting and Replacing a Drive Belt
Replacing an Engine Drive Belt
Inspecting, Testing, and Replacing the Compressor Clutch
Removing, Inspecting, and Reinstalling the Compressor
Removing and Inspecting Air-Conditioning Mufflers, Hoses, Lines, and Fittings
Removing, Inspecting, and Reinstalling the Condenser
Removing, Inspecting, and Installing the Receiver/Drier or Accumulator
Removing, Inspecting, and Installing a TXV
Removing, Inspecting, and Installing an Orifice Tube
Removing, Inspecting, and Reinstalling the Evaporator
Evacuating the Air-Conditioning System
Evacuating the Air-Conditioning System Using a Micron Gauge
Determining Recommended Oil and Capacity
Charging the Air-Conditioning System
Refrigerant Equipment Maintenance
Inspecting and Testing the Heater Control Valves
Removing, Inspecting, and Reinstalling the Heater Core