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Summary

In this informative video, the host demonstrates how to detect and fix leaks in a car's AC system, using a Toyota Avanza as a practical example. The process includes checking the refrigerant level with a manifold gauge, searching for leaks using a soap solution, replacing a faulty compressor fitting, and vacuuming the system before recharging it with R134a refrigerant. Throughout, the host emphasizes careful techniques to avoid damaging the compressor and ensures the AC system is fully functional. The video offers valuable insights for car owners looking to maintain their vehicle's air conditioning system.

Takeaways

• 😀 The video is from a channel called 'Jeng AC Servis', focusing on car air conditioning repair.
• 😀 The main topic is how to detect leaks and diagnose when the freon in a car's air conditioning system is depleted.
• 😀 The demonstration uses a Toyota Avanza, and the presenter shows how to verify whether the AC system is running and if freon is present.
• 😀 The initial test involves checking the airflow from the car’s AC with tissue, confirming that the system is on and the blower is working.
• 😀 The freon pressure is tested using a single-gauge manifold, and the lack of movement indicates that there is no freon in the system.
• 😀 The presenter discusses how the car frequently loses freon within a week after a refill, prompting the need to search for leaks.
• 😀 To identify leaks, the presenter uses compressed air from a freezer machine to pressurize the system, and the manifold pressure begins to rise.
• 😀 Soap water is applied to connections and fittings to detect leaks, with bubbles forming where air escapes from the system.
• 😀 A leak was found at the 5/8 compressor fitting, which was fixed by replacing the faulty part after confirming the presence of bubbles.
• 😀 After fixing the leak, the air is evacuated from the system using the compressor again to remove all air before recharging with freon.
• 😀 The system is recharged with R134a freon, and the presenter emphasizes opening the valve slowly to preserve compressor life. The system reaches the desired low temperature and pressure after recharging.

Q & A

What is the purpose of this video?

The video demonstrates how to find leaks in a car's air conditioning (AC) system and how to recharge the AC with Freon after detecting and repairing leaks.

What car model is being used in this demonstration?

The demonstration is conducted using a Toyota Avanza.

How can you confirm that the AC system is running in the video?

The AC is confirmed to be running by checking the airflow using a tissue, which shows that air is coming out of the AC vents.

What does the manifold gauge indicate in this video?

The manifold gauge shows that there is no Freon in the AC system, as the needle on the gauge does not move or rise, indicating a lack of refrigerant.

How is air used to check for leaks in the system?

Air from a compressor is introduced into the AC system, and then the system is checked for leaks using soapy water. If there is a leak, bubbles will form at the site of the leak.

What tool is used to check for leaks in the AC system?

The video uses a soapy water solution to detect leaks. The soap will bubble if air is escaping from the system.

How is the leak fixed once it is found?

Once a leak is detected at the 5/8 compressor fitting, the fitting is removed and replaced with a new one, and the necessary seals are applied to ensure it is secure.

Why is it important to use the compressor air to remove the air from the system before refilling it with Freon?

Using the compressor to expel air helps to prepare the system for proper vacuuming and ensures that there is no air or moisture that could affect the Freon’s performance once added.

What is the purpose of vacuuming the AC system before recharging it with Freon?

Vacuuming the system removes air and moisture from the AC system, which ensures that the Freon can flow properly and the AC system will function efficiently.

How is the Freon added to the system, and what precaution is mentioned during the process?

Freon is added slowly to the system by gradually opening the valve to avoid overloading the compressor. It’s important to avoid opening the valve too quickly, as it could cause damage to the compressor.

How is the success of the Freon refill measured?

The success of the refill is measured by checking the pressure on the manifold gauge and ensuring the AC is cooling effectively, as indicated by a significant drop in temperature and the temperature gauge showing a lower reading.