What is the throttle brake?

What Causes Vehicle Pulling to One Side?

Here are the reasons for vehicle pulling to one side: 1. Incorrect wheel alignment. In most cases, this can be resolved by performing a wheel alignment. However, if the problem persists after alignment, it must be caused by other factors. 2. Different tread patterns or uneven tread depth on the left and right tires. It's best to use the same type of tires for the entire vehicle with identical tread depth. Tires exceeding the wear limit must be replaced. 3. Unequal tire pressure on both sides. Different tire pressures will cause tires to become uneven in size, inevitably leading to pulling when rolling. 4. Uneven spring deformation of front shock absorbers. The condition of shock absorber springs can be judged by pressing or comparing after removal. 5. Failed front shock absorbers. When front shock absorbers fail, the suspension becomes uneven during driving, causing uneven force distribution and resulting in pulling. 6. Excessive wear of vehicle chassis components causing abnormal gaps. Common parts prone to excessive gaps include steering linkage ball joints, control arm bushings, and stabilizer bar bushings. 7. Poor brake return or incomplete separation on one wheel. This is equivalent to applying partial braking on one side continuously, causing the vehicle to pull while driving. 8. Overall frame deformation. Excessive difference in wheelbase between both sides beyond the maximum allowable range.

14

5

Share

What are the reasons for compressor failure?

The reasons for automotive air conditioning compressor failure are: 1. Poor internal lubrication of the compressor; 2. Unclean air conditioning system; 3. Excessive refrigerant or lubricating oil in the system; 4. Slippage of the compressor's electromagnetic clutch causing excessive friction temperature; 5. Insufficient power configuration of the compressor. The methods to check for automotive air conditioning compressor failure are: 1. Check for oil stains at the connections and seams of each device; 2. Check whether the HVAC valve or thermal control damper is closed, and whether other damper adjustments are normal; 3. Check whether the condenser fan is operating properly; 4. Check whether the drive belt is broken or loose if the drive belt is too loose.

4

3

Share

What Causes Aging and Cracking in Car Tires?

Cracking, stickiness, hardening, softening, powdering, discoloration, and mold growth are all normal manifestations of aging in rubber products, and car tires are no exception. More details are as follows: 1. Starting with the material of the tire, the main component of a tire is rubber. The maximum storage and anti-aging time for rubber, from natural latex to ethylene-propylene and nitrile rubber, does not exceed 10 years. The average service life of various rubber products in use is 3-5 years. 2. Additionally, tires bear the weight of the entire vehicle, frequently serve to cushion impacts, and must also resist corrosive rainwater and car wash cleaning solutions. As a result, the aging of tires is significantly accelerated. 3. Generally, after 2-3 years of use, small cracks begin to appear on the sidewalls of tires. If a large number of fine cracks are observed on the sidewalls, the tires should be replaced. Typically, the wear lifespan of tires is around 30,000 to 50,000 kilometers. However, even if the tires have not reached the wear limit or mileage, if they have been in use for 5 years or show significant cracking on the sidewalls, they should be replaced.

2

3

Share

What is the shelf life of gasoline?

Gasoline has a shelf life of about three months, after which its quality may deteriorate. To assess gasoline quality: car owners can check the color, smell, and texture. Good gasoline should be transparent or semi-transparent light yellow; darker colors indicate higher sulfur content and other impurities. Strong gasoline odors, especially pungent smells when opening the bottle, indicate poor quality and excessive sulfur. Health hazards of gasoline: Exposure routes include inhalation, ingestion, and skin absorption. Acute poisoning: It has a narcotic effect on the central nervous system. Mild symptoms include dizziness, headache, nausea, vomiting, unsteady gait, and ataxia. High-concentration inhalation can lead to toxic encephalopathy. Extremely high concentrations can cause sudden loss of consciousness and reflexive respiratory arrest, possibly accompanied by toxic peripheral neuropathy and chemical pneumonia.

14

5

Share

Can a Lost ID Card Be Used to Log Driving School Hours for Subject 2?

Generally, driving schools issue a training hour card after enrollment, which is used to log hours instead of the ID card. It is recommended to consult the driving school staff or instructor. Subject 1: Requires a total of 12 training hours. This is theoretical training, mainly covering basic knowledge of motor vehicles and understanding traffic laws, regulations, and signal rules. Subject 2: Requires a total of 26 training hours. This includes 2 hours of theoretical knowledge and 24 hours of practical operation, with 8 hours dedicated to skills like reversing into a parking space, hill starts, parallel parking, curve driving, and right-angle turns. Subject 3: Requires a total of 40 training hours. "Road driving skills and safety awareness" accounts for 16 hours, while practical road driving skills require 24 hours.

9

1

Share

Will points be deducted for parking less than 30cm from the curb?

No. For the parking test in Subject 3, points are only deducted if the distance exceeds 30cm (10 points deducted), and 100 points are deducted if the vehicle exceeds the roadside. Below is relevant information: Subject 3: Also known as the road test, it is part of the motor vehicle driver's license examination, specifically referring to the road driving skills and safe civilized driving knowledge test. Test content includes: preparation before starting, light simulation test, starting, straight-line driving, gear shifting operations, lane changing, parking by the roadside, going straight through intersections, left turns at intersections, right turns at intersections, passing pedestrian crossings, passing school zones, passing bus stops, meeting vehicles, overtaking, making U-turns, and night driving.

18

3

Share

What is the throttle brake?

What Causes Vehicle Pulling to One Side?

What are the reasons for compressor failure?

What Causes Aging and Cracking in Car Tires?

What is the shelf life of gasoline?

Can a Lost ID Card Be Used to Log Driving School Hours for Subject 2?

Will points be deducted for parking less than 30cm from the curb?

How to Use Reference Points for Parallel Parking?

When to Use High Beams?

How many points deducted from the driver's license require retraining?

What Causes the Clicking Sound When Braking?