What Causes the Inability to Add Refrigerant to a Car's Air Conditioning System?

1 Answers
SamuelFitz
07/29/25 11:37am
Car air conditioning systems may fail to accept refrigerant primarily due to compressor malfunction or excessive internal pipeline pressure, preventing refrigerant injection. In such cases, it's necessary to visit a 4S dealership for diagnostics to pinpoint and repair the specific fault. Additional details regarding car AC refrigerant recharge are as follows: 1. Procedure for adding refrigerant: Begin with pressure testing, followed by pressure retention checks. Upon confirming no leaks and stable pressure, proceed with vacuum extraction before refrigerant charging. 2. Precautions during refrigerant charging: Always start the vehicle and activate the AC system before charging. Refrigerant should typically be introduced through the low-pressure port while ensuring the high-pressure gauge connection remains securely tightened.
Was this review help?
16
3
Share
More Forum Discussions

What is the actual displacement of the Django 150i in CC?

The actual displacement of the Django 150i is 149.6CC. The Django is equipped with Peugeot's latest 150CC WEP globally efficient sports engine, with a maximum power output of 8.3kw. Under the meticulous tuning of Peugeot's engine R&D center experts, the WEP engine delivers an exceptional driving experience in the Django, with continuous power output. The engine has undergone Peugeot's rigorous 700-hour forced durability test, showcasing outstanding quality and performance. Additionally, the Django is equipped with the Peugeot Citroën Group's MAP-FI electronic fuel injection system, featuring a built-in 64-bit processing chip for efficient automatic control of the fuel injection system. It precisely controls fuel injection volume, intake, and exhaust, and can intelligently regulate fuel supply based on road conditions, temperature, and other information.
20
0
Share

How to Release a Locked Brake on Wuling Hongguang?

To release a locked brake on a Wuling Hongguang, simply fasten your seatbelt inside the car, start the ignition, shift to D gear, and lightly press the accelerator. The handbrake will then automatically disengage. Wheel lock-up refers to the sudden locking of the wheels when braking, causing the vehicle to lose steering capability. This typically occurs in vehicles not equipped with an ABS (Anti-lock Braking System). In cars without ABS, if the brake pedal is pressed hard while driving, the wheel speed rapidly decreases. When the braking force exceeds the friction between the wheels and the ground, the wheels lock up. Fully locked wheels increase the friction between the tires and the ground, which, under significant inertia, may lead to skidding and loss of directional control. Wheel lock-up is caused by the strong braking force between the brake pads and the disc or drum. However, due to the vehicle's substantial inertia, the car continues to move forward, with the tires sliding rather than rolling, preventing the vehicle from changing direction and potentially causing accidents. Even with minimal inertia, on crowded or heavily trafficked roads, if following too closely, a sudden stop due to wheel lock-up can easily result in a rear-end collision. If the front wheels lock up before the rear wheels, the car loses its ability to steer, making it impossible to change direction. If the rear wheels lock up before the front wheels, it can cause the vehicle to skid sideways.
12
5
Share

Where is the car VIN located?

Vehicle VIN code can generally be seen under the front windshield on the driver's side. More related information is as follows: 1. Introduction: The frame number generally refers to the Vehicle Identification Number (VIN or chassis number), abbreviated as VIN. It is a unique set of seventeen letters or numbers used on automobiles to identify the manufacturer, engine, chassis serial number, and other performance data. 2. Note: To avoid confusion with the numbers 1, 0, and 9, the English letters 'I', 'O', and 'Q' are not used. The 10th digit representing the model year does not use 'I', 'O', 'Q', 'U', 'Z', or '0'.
20
3
Share

Can I charge my phone with the car engine off?

You can charge your phone with the car engine off, but it will drain the car battery. If there are other power-consuming devices, it is recommended to start the engine. Otherwise, keeping the battery at a low charge level for a long time can damage the battery, and if the battery charge is too low, the car may not start. Here is some additional information: 1. Charging with the engine off is generally fine: Generally, there is no problem charging your phone to full with the engine off. However, as long as the ignition is on, other electrical devices in the car will also be powered, and over time, this can easily lead to battery drain or even failure to start, as well as damage to the battery. 2. Automatic power cut-off: Some cars will automatically cut off all power a few minutes after the engine is turned off or the car is locked to protect the battery. Rather than risking not being able to start the car or damaging the car battery to charge your phone, it is better to prepare a power bank to keep in the car. The battery is simply "draining" when the engine is off, which is not worth the loss. 3. When the car battery is charging: The battery can be charged by the rotation of the engine. Open the engine hood, and you can see several belt-connected parts, one of which is the car's generator connected to the belt. As the engine runs, the belt drives the generator to produce an electric current, which flows through the vehicle's voltage regulator transformer. After filtering, part of the current is used for the vehicle's operation (such as lights, audio, ignition coil), and the excess part is used to charge the car battery.
4
2
Share

Which Vehicles Are Exempt from Inspection for Six Years?

Non-commercial vehicles with a rated seating capacity of 6 or fewer passengers are exempt from inspection for the first six years. The six-year exemption policy applies to non-commercial sedans (including large sedans), non-commercial small and mini passenger vehicles. There are three scenarios where vehicles are not exempt: 1. Vans and vehicles with 7 or more seats are not exempt. 2. Vehicles involved in accidents are not exempt: New vehicles within the six-year exemption period that have been involved in accidents causing casualties do not qualify for the exemption. 3. Vehicles not registered for a long time after purchase are not exempt: Vehicles that have not completed registration procedures for more than four years from the date of manufacture are not exempt. Commercial vehicles such as taxis and driving school vehicles still require annual inspection as per the original regulations.
13
4
Share

Precautions for the Break-in Period of an Automatic Transmission New Car

Precautions for the break-in period of an automatic transmission new car are as follows: 1. Avoid emergency braking: Emergency braking not only impacts the braking system during the break-in period but also increases the load on the chassis and engine. Therefore, it is best to avoid emergency braking within the first 300 kilometers of driving. 2. Do not overload: Running a new car at full load during the break-in period can damage the components. Hence, within the first 1,000 kilometers, the load should generally not exceed 75%-80% of the rated capacity. 3. Minimize long-distance driving: If a new car starts long-distance driving during the break-in period, the continuous working time of the engine increases, which can easily lead to component wear.
7
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.