What causes uneven cooling in Toyota Reiz's air conditioning system?

1 Answers
Myra
07/29/25 6:57pm
When a car's air conditioning system delivers cold air on one side and warm air on the other, it typically indicates insufficient refrigerant. With inadequate refrigerant, the evaporation and heat absorption process of liquid refrigerant entering the evaporator ends prematurely. This results in cooling only on the side where refrigerant flows into the evaporator, while the outflow side shows no cooling effect. Consequently, only a portion of the air blown by the fan gets cooled, creating temperature differences between the vents. Below are air conditioning maintenance tips: 1. Comprehensive system inspection: During first summer use, examine the AC system thoroughly - check refrigerant levels via the receiver-drier, inspect if the cabin filter is overly dirty, and ensure the condenser has no debris. 2. Regular cleaning: Replace cabin air filters periodically to prevent musty odors. Additionally, schedule condenser cleaning (requires radiator removal for thorough cleaning).
Was this review help?
7
4
Share
More Forum Discussions

Is There a Difference Between Mirror Memory and Automatic Mirror Tilt-Down in Reverse?

Mirror memory and automatic mirror tilt-down in reverse are the same. Mirror Definition: Automatic mirror tilt-down in reverse refers to the feature where the right-side mirror automatically adjusts its angle downward when the vehicle is shifted into R gear, helping the driver see the ground conditions. How to Use the Mirror: First, with the ignition on, shift into reverse (R) without starting the vehicle. The reverse camera will display. Then, operate the mirror adjustment lever, turning it from the 0 position to R (right). This requires some force—push the lever firmly to the right. If the lever doesn’t move to the R position, adjust the mirror’s tilt-down range. Once adjusted, keep the adjustment button in the R position (the right-side mirror adjustment position). Shift back to P gear. The next time you start the vehicle and shift into reverse, the mirror will automatically tilt down to the previously set position. Below is the view from the mirror when it doesn’t tilt down in a parking lot—only the rear vehicle is visible, not the ground beside the car body.
17
1
Share

What are the standards for licensing used cars in Dalian?

Dalian used car licensing requires compliance with the National IV emission standards. Licensing procedures: To license a used car at the municipal vehicle management office or the vehicle management offices stationed at various traffic police brigades, the following vehicle-related documents and procedures are required: vehicle certificate of conformity, purchase invoice, original file, inspection qualification materials, tax payment certificate, owner's ID card, and other relevant documents. Specific process: Staff will inspect the vehicle, take rubbings of the vehicle identification number, remove the license plate, and take photos. A fee for the rubbing is required. Collect vehicle photos and affix them to the inspection record form. Check for traffic violations. Once passed, proceed to the relevant window with the necessary documents, including the Motor Vehicle Registration, Transfer, Cancellation Form/Transfer Application Form and transfer invoice, to complete the process. Submit the original vehicle documents and license plate, select a new number, obtain a new vehicle license, tax registration certificate, and new license plate. Purchase relevant insurance as needed.
4
4
Share

How to Clean the Three-Way Catalytic Converter of a Sedan?

The cleaning methods for the three-way catalytic converter of a sedan are: 1. Use oxalic acid solution for cleaning, which has a very noticeable effect. However, this method requires disassembling the three-way catalytic converter, and there are certain requirements for the mixing ratio of the oxalic acid solution and the soaking time. Improper use may damage the internal structure. 2. No-disassembly cleaning, which involves using an IV drip or adding a cleaning agent to the fuel tank, but this method is not as effective as the first one and is suitable for minor blockages of the three-way catalytic converter. The three-way catalytic converter has a usage cycle, and the length of its service life is closely related to the quality of the fuel. If the fuel quality is poor and combustion is incomplete, many compounds will adhere to the surface of the three-way catalytic converter. Over time, this can cause the three-way catalytic converter to become poisoned and lose its purification function.
3
5
Share

What does 1.6L and 1.5T displacement mean?

1.6L and 1.5T displacement meanings are as follows: Meaning of 1.6L: The 'L' in 1.6L is a unit, which stands for liter. 1.6L represents the engine displacement of the car, indicating that the vehicle is equipped with a 1.6L naturally aspirated engine. The output horsepower of a 1.6L engine is 125. If you drive gently and are concerned about maintenance costs, choose 1.6L. Meaning of 1.5T: 1.5T refers to adding a turbocharger to a 1.5 naturally aspirated engine. Under the same conditions, its performance is equivalent to a 1.8L engine, while its fuel consumption is similar to a 1.6L engine. This means that for the same horsepower output, the 1.5T can save at least 1.2L per 100 kilometers compared to the 1.6L. If you prioritize driving experience, choose 1.5T.
3
0
Share

Is it troublesome to replace the car dashboard assembly?

Replacing the car dashboard assembly is not troublesome. Removing the center air vent: The decorative strips on both sides of this car's air vents are prone to paint peeling and leaving pry marks. When removing the center air vent, use gentle force to pull it outward. When removing the air conditioning control module from the small hole next to the air conditioning knob, be careful with the decorative strips on both sides to avoid causing dents or paint peeling. Protecting the gear shift decorative cover: The gear shift decorative cover is also an area prone to paint peeling and should be protected. Protecting the decorative strips on both sides: When installing the FlyAudio head unit, be cautious as the decorative strips on both sides are prone to leaving scratches. Pay attention to wiring: The space behind the head unit panel in this car is relatively open. Pay attention to the bundling and securing of the wiring behind the head unit to prevent vibrations and rattling noises. If the car owner requests to place the iPod cable and USB drive in the upper storage compartment, ensure the wiring does not interfere with the opening and closing function of the storage compartment.
5
5
Share

What are the causes of exhaust pipe blockage?

Exhaust pipe blockage can be attributed to the following reasons: Water dripping from the exhaust pipe: When gasoline is completely burned in a car, it produces carbon dioxide and water. At high temperatures, water turns into steam, which is colorless and transparent. However, when the temperature drops below 100 degrees, the steam condenses into water. If the condensed water droplets are very small and suspended in the air, the steam appears as white gas. In cold weather, white smoke from the exhaust pipe is actually steam. If the condensed water droplets accumulate, they turn into water. Foreign objects in the exhaust pipe: Backpressure caused by the exhaust system can be intuitively understood as excessive backpressure preventing smooth exhaust flow, leading to blockage in the passage or cylinder. When exhaust cannot be discharged smoothly, the piston needs to consume more energy to push it out, increasing the overall power consumption of the engine. Additionally, due to poor exhaust flow, more exhaust gas remains in the cylinder. This exhaust gas is at a high temperature and occupies a larger volume, reducing the space available for fresh air to enter the cylinder, thereby affecting combustion.
18
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.