Automotive Ac System Diagnosis

With the engine off for at least 30 minutes read the low and high pressure gauges. Start your ac pressure readings diagnostic by measuring the system s static pressure. If the clutch is not engaging use a voltmeter to check for voltage getting to the compressor.

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Attach to the hoses and gauge set to the high and low side ports of your ac system.

Automotive ac system diagnosis.

This series is divided into three parts. With the engine running turn the a c on max cool set fans high and make sure that the clutch is engaging on the. If the pressures do not change at all when the compressor engages then the compressor has failed or there is a problem with the metering device. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube.

When diagnosing an air conditioning issue it s easiest to begin at the compressor. Static pressure is the pressure with the system at rest compressor off for at least 30 mins. The ac system operation ac system service and the. The typical complaint for an ac problem is the ac blows warm air.

As the internal parts disperse the metallic debris ends up throughout the entire system. If the readings are very high then you may have a problem with air trapped in the system or an airflow problem with the condenser. Typically this results from a defective or failing compressor that breaks apart. Ac system diagnosis by symptom ac system diagnosis.

This condition has a few possible. In this situation you might need more than a condenser but also the tubes receiver dryer and compressor.

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