What to Do When Car Tire Bolts Won't Loosen?

What Restrictions Do Not Apply to Sweeper Vehicles?

Road maintenance vehicles and engineering operation vehicles are not restricted by traffic signs and markings in terms of their driving routes and directions while performing tasks, provided that they do not affect the passage of other vehicles. Passing vehicles and pedestrians should yield the right of way. Water sprinklers, sweeper vehicles, and other motor vehicles should operate according to safety standards; they are not restricted by lane division regulations when not affecting other vehicles' passage, but they must not drive in the opposite direction. Fire Hazard Precautions: When maintaining road sweeper vehicles, flammable materials such as oils and cleaning agents are often used. It is essential to follow standard operating procedures and implement fire prevention measures, keeping a fire extinguisher on hand to prevent fires. Do not smoke or ignite flames near the fuel tank or battery, as flammable gases from the fuel tank and hydrogen from the battery can easily catch fire. Burn Hazard Precautions: After the vehicle has been in use for some time, components such as the radiator, exhaust pipes, power steering fluid reservoir, and spark plugs can become very hot. Avoid contact to prevent burns. Mechanical Injury Precautions: Before starting the vehicle, check the initial gear position to avoid collisions caused by excessive starting speed. When working under the engine hood, clear the cab to prevent accidental injury from sudden engine movement or others' operational errors. Avoid Damaging the Sweeper Vehicle: Take care not to damage the road sweeper vehicle, especially to prevent brake fluid leakage. Brake fluid can damage the vehicle's paint film and, if accidentally splashed into the eyes, can impair vision or even cause blindness. In case of accidental exposure, rinse immediately with clean water.

6

3

Share

Which is safer, automatic transmission or manual transmission?

Relatively speaking, automatic transmission is safer. Here are the specific details: 1. Firstly, automatic transmission has certain advantages, especially for those with poor driving skills. Manual transmission requires constant gear shifting, while automatic transmission eliminates this hassle. In cities with frequent traffic congestion, operations that only require the use of two feet are naturally easier than frequent gear shifting. 2. Automatic transmission is a foolproof operation, with commands issued by the computer. However, if the driver shifts gears while driving, the car might forcibly engage other gears, leading to conflicts and potential damage to the vehicle. 3. Whether to choose manual or automatic transmission depends entirely on personal preference. To ensure absolute driving safety in the true sense, it still depends on the driver themselves. When driving, one should be bold yet careful, calmly handling any situations that arise. Remember, it's better to be slower than to rush for speed.

12

2

Share

What Causes Abnormal Engine Noise During Cold Start?

Abnormal engine noise during cold start may be caused by issues such as a faulty carbon canister purge valve, secondary injection system malfunction, or electric vacuum pump failure. Engine noise can also result from excessive engine load intensity. The causes of abnormal engine noise are as follows: 1. If the noise occurs within half a minute after cold start and then disappears, it is mostly due to thermal expansion noise from the catalytic converter. 2. Loud noise during cold start is often caused by wear, elongation, or loosening of the timing belt/chain, or failure of the chain tensioner to maintain proper tension. 3. Air conditioning belt friction noise - if the noise only occurs when the AC is turned on, it may be caused by friction in the AC belt.

17

3

Share

What are the reasons for low brake fluid?

The reduction in brake fluid may be due to thinning brake discs or leakage into the vacuum booster pump. The reasons for low brake fluid are as follows: 1. Thinning of brake pads leads to fluid reduction. Generally, brake pads can last up to 80,000 kilometers. If the vehicle is used frequently and braking is more frequent, the brake pads experience more friction and wear out faster. If the vehicle is used less and the driver prefers to decelerate using the engine before applying the brakes, the brake pads wear out much slower. 2. As the brake pads wear down and become thinner, the piston inside the brake caliper gradually extends to adjust for the gap caused by wear. The piston is pushed by the pressure generated by the brake fluid when braking. The adjustment of the piston increases the internal space of the brake caliper, which is then filled by the brake fluid. This results in a noticeable reduction of brake fluid in the reservoir.

20

0

Share

What to Do When the Car's Windshield Doesn't Wipe Clean?

When the car's windshield doesn't wipe clean, it is usually due to the wiper blades not functioning properly. Detailed reasons and solutions for an unclean windshield are as follows: 1. Sometimes, even after replacing the wiper blades with new ones, there may still be a hazy feeling. This might not be an issue with the wiper blades but rather caused by the windshield itself being dirty. Solution: You can use dish soap and toothpaste to clean the windshield. 2. Additionally, if the rubber strips on the wiper blades are loosely attached, it can also make it difficult to wipe clean. Solution: If you notice looseness, you can use needle-nose pliers to tighten the gaps at each joint and where the rubber strips are clamped. This not only effectively reduces noise but also improves the wiping performance of the wiper blades.

14

5

Share

What is the function of a differential?

The differential enables the left and right (or front and rear) drive wheels to rotate at different speeds. The following are the functions of a differential: 1. When the car is turning or driving on uneven road surfaces, the left and right wheels roll at different speeds, ensuring that both drive wheels perform pure rolling motion. 2. The differential is designed to adjust the speed difference between the left and right wheels. 3. In four-wheel drive systems, to drive all four wheels, they must be connected. If all four wheels are mechanically connected together, the car cannot rotate at the same speed when driving on curves. To allow the car to maintain a relatively consistent rotational speed during curve driving, a center differential is added to adjust the speed difference between the front and rear wheels.

7

1

Share

What to Do When Car Tire Bolts Won't Loosen?

What Restrictions Do Not Apply to Sweeper Vehicles?

Which is safer, automatic transmission or manual transmission?

What Causes Abnormal Engine Noise During Cold Start?

What are the reasons for low brake fluid?

What to Do When the Car's Windshield Doesn't Wipe Clean?

What is the function of a differential?

Can traffic violation points be handled on a mobile phone?

How to clear the maintenance reminder on the new Focus?

What are the symptoms of a faulty ball joint in the control arm?

What is the bulb model for the Everest's headlights?