Will the Subject 4 Exam Indicate Single-Choice and Multiple-Choice Questions?

Can the DMV Check for Used Car Accidents?

The DMV can check vehicle violation information, while accident records can be obtained from insurance companies. Methods to check if a vehicle has been in an accident: Checking vehicle violation information: Visit the traffic department's violation processing center or specialized websites of online traffic management platforms to inquire. Used car accident records: To check accident information, the best approach is to contact the insurance company where the vehicle was insured. Inspecting the hood: Check the front beam and steering connections for cracks or welding marks. If there are signs of severe accidents, repairs would have been made. Inspecting the spare tire: Examine the spare tire compartment for cracks, welding traces, or obvious displacement. Test driving: Personally test drive the vehicle or ask an experienced friend with proficient driving skills to do so. Pay attention to any abnormalities during startup, power issues when accelerating, and steering wheel responsiveness—check if the force is consistent when turning left and right. When steering to extreme positions, watch for frequent tire rubbing against wheel liners, which could threaten driving safety. For manual transmission models, also verify if gear shifting is smooth.

7

0

Share

What Happens If You Continue Riding a Motorcycle Without Engine Oil?

Here are the consequences of continuing to ride a motorcycle without engine oil: 1. Mechanical wear: Lack of oil will cause wear on parts such as the piston, cylinder, crankshaft, rocker arm, camshaft, and more. In severe cases, it may even lead to seizure, resulting in engine failure. 2. Engine damage: Overheating can damage the engine and reduce its lifespan. 3. Crankshaft and cylinder damage: Without oil lubrication, the crankshaft and cylinder may be damaged. Below is additional information on the functions of motorcycle engine oil: 1. Lubrication and friction reduction: There is rapid relative sliding between the piston and cylinder, as well as between the main shaft and bearing shells. To prevent excessive wear, an oil film must be established between these sliding surfaces. A sufficiently thick oil film separates the sliding surfaces, thereby reducing wear. 2. Cooling: Engine oil carries heat back to the oil tank, where it is dissipated into the air, helping the radiator cool the engine. 3. Cleaning: High-quality engine oil can carry carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank through circulation. The flow of the oil cleans contaminants produced on the working surfaces of the components.

19

1

Share

Where is the Fiesta's Cabin Air Filter Located?

The Fiesta's cabin air filter is located under the front passenger seat on the left side, behind the glove compartment. You can access it by removing the glove compartment. Here are some details about the cabin air filter: 1. The replacement interval for a car's cabin air filter depends on usage conditions. 2. For typical urban family cars, it's recommended to replace it every six months or annually. The functions of the cabin air filter include: 1. Ensuring a tight seal with the housing to prevent unfiltered air from entering the cabin. 2. Filtering out solid impurities such as dust, pollen, and abrasive particles from the air. 3. Adsorbing moisture, soot, ozone, odors, carbon oxides, SO2, CO2 from the air, with strong and lasting moisture absorption capabilities. 4. Preventing windshield fogging to maintain clear visibility for safe driving; providing fresh air to the cabin to protect occupants from harmful gases; offering powerful antibacterial and deodorizing effects. 5. Maintaining clean cabin air to prevent bacterial growth and create a healthy environment; effectively separating solid impurities like dust, powder, and abrasive particles from the air; efficiently intercepting pollen to prevent allergic reactions that might affect driving safety.

16

4

Share

Why is the front brake of the motorcycle too hard to squeeze?

Here are the reasons why the front brake of the motorcycle is too hard to squeeze: 1. The first reason: Dirt accumulated over long-term use in the oil pump and oil pipe blocks the inside; there is a layer of dirt accumulated in the upper pump, even clogging the exhaust hole and oil supply hole, or the oil pipe is blocked at the downward passage or the oil pump oil path is obstructed. 2. The second reason: The piston in the upper pump does not rebound flexibly due to rust, or there is air in the oil pipe causing swelling, leading to poor flow. Here are extended solutions: 1. Check the exhaust hole: Check if there is oil overflowing from the exhaust hole below. Use a ten-sized open-end or socket wrench to loosen the exhaust valve below while simultaneously squeezing the brake lever by 1/5 with the other hand. Observe if oil flows out. If not, it indicates that the oil pipe or the oil hole of the exhaust valve is blocked. 2. Check the exhaust valve: Inspect if the hole of the exhaust valve is blocked. Spray rust remover from the other end of the hole to clear it, then reinstall it to the lower pump.

11

2

Share

What are the reasons for the car stalling immediately after starting?

Reasons for the car stalling immediately after starting: 1. Carbon deposits: During cold starts, the engine temperature is low, and fuel is difficult to evaporate or vaporize. If there is severe carbon buildup in the fuel lines or intake manifold, it can lead to an overly lean air-fuel mixture entering the combustion chamber, resulting in unstable idling or stalling immediately after ignition. 2. Fuel and air issues: A faulty fuel pump may suddenly jam or malfunction, causing the fuel pump to underperform or stop, leading to insufficient fuel supply and stalling. 3. Low fuel system pressure: Insufficient fuel supply due to low fuel pump pressure, fuel line leaks, low electrical current, or a damaged fuel pressure regulator. 4. Clogged or leaking fuel injectors, causing poor atomization and insufficient fuel supply, leading to stalling. Precautions for starting the car: 1. Avoid prolonged continuous use of the starter. 2. Avoid restarting the engine within less than 15 seconds and releasing the key immediately after starting the engine. 3. Avoid pressing the accelerator pedal too hard immediately after starting. 4. Avoid driving off immediately when the idle is unstable. 5. Avoid sudden starts without observing the surroundings. 6. For automatic transmission vehicles, avoid push-starting or towing to start, as it may damage the transmission.

1

Share

What areas do the letters on Chongqing license plates represent?

Chongqing license plate letters represent: 1. Yu A: Yuzhong District, Jiangbei District, Jiulongpo District, Dadukou District; 2. Yu B: Nan'an District, Shapingba District, Beibei District, Wansheng District, Shuangqiao District, Yubei District, Banan District, Changshou District; 3. Yu C: Yongchuan District, Jiangjin District, Hechuan District, Tongnan County, Tongliang County, Bishan County, Dazu County, Qijiang County, Rongchang County; 4. Yu F: Wanzhou District, Liangping County, Chengkou County, Wushan County, Wuxi County, Zhong County, Kai County, Fengjie County, Yunyang County; 5. Yu G: Fuling District, Nanchuan District, Dianjiang County, Fengdu County, Wulong County; 6. Yu H: Qianjiang District, Shizhu Tujia Autonomous County, Xiushan Tujia and Miao Autonomous County, Youyang Tujia and Miao Autonomous County, Pengshui Miao and Tujia Autonomous County.

6

0

Share

Will the Subject 4 Exam Indicate Single-Choice and Multiple-Choice Questions?

Can the DMV Check for Used Car Accidents?

What Happens If You Continue Riding a Motorcycle Without Engine Oil?

Where is the Fiesta's Cabin Air Filter Located?

Why is the front brake of the motorcycle too hard to squeeze?

What are the reasons for the car stalling immediately after starting?

What areas do the letters on Chongqing license plates represent?

Where is the license plate number Lu F from?

What is the Importance of Motorcycle Helmets?

What is the top speed of an underbone motorcycle?

What Causes the Clicking Sound While Driving?