Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

What is the reason why the car air conditioner only has wind in the 4th gear?

1 Answers

SanGraham

07/30/25 5:41am

The reason why the car air conditioner only has wind in the 4th gear is that the blower speed control resistor is burned out. Different resistance values are added to the blower to adjust its current and control the wind speed. If the resistor is damaged, the circuit will be cut off directly, and the blower will not rotate. The 4th gear is a direct gear that bypasses the blower resistor, so it remains unaffected even if the resistor is damaged. Components: The blower mainly consists of six parts: motor, air filter, blower body, air chamber, base (also serving as an oil tank), and oil drip nozzle. Vane-type blower: The blower operates with an eccentrically placed rotor inside the cylinder, and the volume between the blades in the rotor slots changes to suck in, compress, and discharge air. During operation, the pressure difference of the blower automatically delivers lubrication to the oil drip nozzle, which drips into the cylinder to reduce friction and noise while preventing gas backflow in the cylinder. This type of blower is called a vane-type blower.

Was this review help?

1

4

Share

More Forum Discussions

How to adjust the time on Audi A6L?

Audi A6L time adjustment method: 1. Click to enter the MMI display, there will be a settings option in the upper right corner; 2. Click the corresponding MMI control panel button to enter, then you can adjust the time; 3. After adjustment, exit to see the dashboard time change accordingly. The Audi A6L is a vehicle series developed by FAW-Volkswagen Audi based on the new German A6. Its body dimensions are 5050mm in length, 1886mm in width, and 1475mm in height, with a wheelbase of 3024mm. The top speed is 250km/h, and the body structure is a sedan.

How many colors does the Changan CS35 have?

Changan CS35 offers 6 color options, which are Dazzling Red, Deep Sea Blue, Crystal White, Pearl Black, Starry Silver Gray, and Golden Desert Sand. The dimensions of the Changan CS35 are 4160mm in length, 1810mm in width, and 1670mm in height, with a wheelbase of 2560mm, and it features front-wheel drive. The Changan CS35 is the first SUV independently developed by Changan Automobile, with a unibody structure. It is equipped with a 1.5T inline 4-cylinder turbocharged engine, delivering a maximum horsepower of 156ps, a maximum torque of 210nm, and a maximum power output of 115kw, paired with a 5-speed manual transmission.

What brand is the transmission of the Haval F7x?

Haval F7x is equipped with a 7-speed wet dual-clutch transmission from the Getrag brand. This dual-clutch transmission features fast shifting speed and high transmission efficiency, making it particularly suitable for pairing with small-displacement turbocharged engines. The Haval F7x is a new coupe SUV from the Haval F series, with body dimensions of 4620mm in length, 1846mm in width, and 1660mm in height, and a wheelbase of 2725mm. Its suspension system (front and rear) consists of MacPherson independent suspension and double-wishbone independent suspension, with a two-wheel drive configuration. The Haval F7x adopts a new family design language, incorporating elements of fashion, technology, sportiness, and aesthetics, available in various color styles such as Crystal Black, Mars Red, and Swarovski Blue.

What current should be used to charge a dead car battery?

When charging a dead car battery, use a current equal to one-tenth of the battery's capacity. Typically, the battery capacity of a household car is around 60Ah, so a 6A current is suitable for charging, which takes about 3 to 5 hours to fully charge. If using a lower current, it may take around 10 hours to fully charge. Precautions for charging a car battery include: 1. The car should not be completely powered off. Therefore, if using a charger, connect it directly to the battery without removing it, as this could lead to data loss requiring initialization, commonly known as decoding or code matching; 2. If the battery voltage is 10% lower than the rated voltage, there is a risk of battery depletion. It is recommended to fully charge the battery once a month.

How to Remove and Install the Headlight Switch of Volkswagen?

Method for removing and installing the headlight switch of Volkswagen: 1. Unplug the power connector of the bulb; 2. After unplugging the power connector, remove the waterproof cover behind the bulb; 3. Take out the bulb from the reflector, and pinch the wire clips on both sides with your fingers when removing the bulb; 4. Place the new bulb into the reflector, aligning it with the fixed position of the bulb; 5. When covering the waterproof cover, ensure that the edge of the waterproof cover is completely fitted with the fixed position, and then connect the headlight power connector. Volkswagen is an automobile manufacturing company headquartered in Wolfsburg, Germany. Its main models include sports cars, small family cars, EOS sports cars, Volkswagen CC, Volkswagen Phaeton, and Volkswagen Audi.

How long does it take to recharge a dead car battery by driving?

It takes about 4 hours of driving to recharge a dead car battery. The alternator in the car needs to operate at over 2000 RPM to reach full load capacity, at which point its power generation meets the standard value specified on the nameplate. However, it is not recommended to use the car's alternator to charge a completely dead battery. Car battery maintenance methods include: 1. Avoid parking the car in open parking lots for extended periods to prevent the battery from freezing and getting damaged; 2. In winter, when the car engine is harder to start, each attempt to start the car should not exceed 5 seconds, with an interval of at least 15 seconds between attempts; 3. Regularly charge the battery by starting the car periodically; 4. Clean the battery terminals periodically and apply special grease to protect the wiring; 5. Avoid using car electronics after the engine is turned off.

Trending Ranking

What Causes the Loud Noise When Releasing the Brake During Car Startup?

Does Revving in Neutral Gear Damage the Car?

How to Clean a Dirty Car Roof?

What Are the Reasons Why the Car Window Glass Cannot Be Rolled Down?

Can a Car Bought on Loan Be Sold?

What is the content of Driving Test Subject 4?

Why Does the Radiator Make Loud Noises?

How to Escape If a Car Falls into Water?

What is the purpose of automotive urea?

What Car Insurance Should You Buy?

More Forum Discussions

Why do newly replaced brake pads not brake effectively?

Can an automatic transmission vehicle be shifted to P gear after turning off the engine?

What is the top speed of the Kawasaki 636?

What kind of engine oil should be used for Jetta's first maintenance?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.