Automotive Ac Diagnostics Operation And Repair Youtube In this video i am going to show you how an automotive ac system works, how you can diagnose issues with it using an ac manifold gauge set and how you can re. Learn about car air conditioning system diagnosis and service, including the use of r134a and r1234yf refrigerants. discover essential tools, step by step instructions for hooking up ac gauges, refrigerant charging, and system evacuation. ensure your car's ac operates efficiently and effectively with regular maintenance tips.
Car Air Conditioner Diagnostic Tools At Elaina Desjardins Blog Now the gold standard: troubleshoot your car’s ac by performing a heat load test the procedures for conducting heat load testing vary based on the type of expansion device your system uses. all ac systems work by metering high pressure liquid refrigerant into the evaporator coil. Step 4 — if the pressures are off, conduct a heat load test on your car’s ac. for an expansion valve system, conduct a superheat heat load test for orifice tube systems, conduct a maximum heat load test. step 5 — evacuate the system and make the repair based on the test results. rent or buy a vacuum pump and pull a vacuum on the system. See this post to learn what type of ac system is in your vehicle. low and high ac pressures are nearly the same. if the compressor is running (the center portion of the pulley is turning), it is spinning but not pumping, which indicates a bad compressor. if the center pulley isn’t turning, see this post for diagnostics. symptoms of a bad ac. Step 5: turn on the ac. turn the air conditioning on in the vehicle and see if that clutch that was previously stationary is now engaged. step 6: turn the fan to medium. if the compressor clutch engaged, return to the inside of your vehicle and turn the fan speed to medium. step 7: check the air temperature.
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