Why is Vehicle Modification Illegal?

What Does Fuel System Cleaning Include?

Automotive fuel system cleaning includes: water spraying, cleaning agent application, car body washing, rinsing, drying, and tire cleaning and waxing. Considering the quality of domestic fuel, it is recommended to clean the throttle body, fuel injectors, and fuel system every 20,000 kilometers. Fuel system cleaning already includes fuel injector cleaning, so it is also necessary to clean the intake tract, which is the section from the throttle body to the engine intake valve. This can be done using a no-disassembly cleaning method. Precautions for automotive fuel system cleaning: 1. Note one: The fuel pump draws fuel from the tank into the lines and maintains a pressure of about 2.5 kilograms. 2. Note two: The fuel filter is located between the fuel pump and the fuel pressure regulator, serving a filtering function to remove harmful particles and moisture from the fuel. 3. Note three: The fuel pressure regulator controls the pressure in the fuel lines, and the fuel is then sprayed as a mist through the fuel injectors, mixing with air before entering the cylinders (some engines use direct injection into the cylinders).

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Where Are the Car Drainage Outlets Located?

Depending on the vehicle model, the location of the sunroof drainage outlets may vary. Generally, however, the sunroof drainage holes are positioned at the A-pillar and C-pillar of the car. In addition, there are several other drainage outlets on a car, including the air conditioning drainage hole, engine compartment drainage hole, door drainage hole, fuel tank drainage hole, and exhaust pipe drainage hole. Below is a detailed introduction: 1. Air conditioning drainage hole: Typically located under the front passenger seat on the car chassis, it drains water from the air conditioning system through a hose. 2. Engine compartment drainage hole: Found on both sides of the windshield wipers, it channels rainwater out through the drainage grooves in the engine compartment. 3. Door drainage hole: Positioned at the bottom of the door panel, usually with two drainage holes per door to prevent rainwater accumulation if one gets clogged. 4. Fuel tank drainage hole: Located inside the fuel tank cap, it drains residual liquids from refueling. 5. Exhaust pipe drainage hole: Hidden beneath the exhaust pipe on the car chassis, it discharges condensed water from the exhaust gases.

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Why Does Water Enter the Passenger Side During Car Washing?

Excluding leaks from car doors, windows, or windshields, there are two main reasons for water accumulation under the passenger seat: First, the drainage outlets at both ends of the U-channel are blocked. During car washing, water sprayed onto the windshield flows down into the U-channel. The air intake for the external circulation mode is located on the right side of the channel, and accumulated water in the channel submerges the intake, allowing water to enter the air duct. Second, the drainage pipe (for air conditioning condensate) at the bottom of the air conditioning evaporator's drip pan is detached or clogged. If water accumulation under the passenger seat occurs only after rain or car washing, the first reason is more likely. If it happens after using the air conditioning without rain or car washing, the second reason is more probable. Solutions: For the first reason, open the U-channel cover, remove any debris or sludge inside, and clear the drainage outlets at both ends. For the second reason, locate the condensate drainage pipe exposed at the bottom outside the car, use an air pump to blow air into it to clear the pipe, and check the connection between the condensate drainage pipe inside the car and the evaporator's drip pan for detachment or aging and cracking of the pipe, and address as needed.

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Should the clutch be fully depressed during hill start?

When performing a hill start, the clutch must be fully depressed before starting to prevent stalling. Gradually release the clutch while holding the handbrake and being ready to start. Once the car shakes noticeably, slowly release the brake. When you feel the car shaking or hear gear engagement sounds, release the handbrake, and the car will move forward. Tips for hill start and positioning: 1. Turn right before entering the slope: Adjust the car to maintain a 30cm distance from the side line. Observe the highest point of the wiper or the one-third point of the car's front aligning with the right line, indicating a 30cm distance. While adjusting, check the rearview mirror to prevent the wheels from crossing the line. If unsure, older test tracks often have deep wheel marks—following them usually maintains the 30cm distance. 2. Watch for the stopping point while adjusting: Stop when the lower edge of the left rearview mirror aligns with the middle yellow solid line, pull the handbrake, and count to four silently to ensure the system detects the handbrake action to avoid penalties. 3. Gradually release the clutch: When the car shakes noticeably, slowly release the brake for a smooth start. If the car rolls back, quickly depress the clutch and brake, then restart slowly. If the car stalls, immediately shift to neutral and restart within 30 seconds. Failing to shift to neutral after stalling results in disqualification. 4. Control speed when descending: Fully release the clutch—pressing it further increases speed. Use the brake to control speed instead.

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What is the reason for the Buick Excelle's air conditioner having normal airflow in gears 1-3 but no airflow in gear 4?

The reason why the Buick Excelle's air conditioner has airflow in gears 1-3 but no airflow in gear 4: It could be due to an issue with the air conditioning switch or a damaged relay. Additional information: 1. Powertrain: High efficiency and low fuel consumption are key features of the new Excelle, equipped with an all-new 1.5L DVVT inline four-cylinder engine that balances high performance, low fuel consumption, low emissions, and low noise through multiple optimizations. In terms of performance, this engine can deliver a maximum power of 83kW/6000rpm and a maximum torque of 141Nm/4000rpm. 2. Interior: The Buick's classic wrap-around elegant cabin combines with a uniquely designed 27-degree inclined center console, aligning with the user's relaxed mood and fashionable taste. The dual-barrel blue-lit instrument panel highlights an extraordinary sporty feel, complemented by the driver information center display for a practical and aesthetically pleasing human-vehicle interface. The ergonomic perforated leather seats offer a soft touch while maintaining breathability, with a long seat cushion design providing better leg support and the main driver's lumbar adjustment function further enhancing seating comfort.

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What is the Difference Between Blind Spot Monitoring and 360-Degree Surround View?

The differences between blind spot monitoring and 360-degree surround view lie in their application scenarios, operating durations, and detection ranges. The specific distinctions are as follows: Different application scenarios: Blind spot monitoring is primarily used during driving to eliminate blind spots in rearview mirrors, assist with lane changes, and provide alerts for potential hazards during lane changes. On the other hand, 360-degree surround view utilizes monitoring cameras around the vehicle to display real-time images of the surroundings. Different operating durations: Blind spot monitoring automatically activates when the vehicle speed exceeds 20 km/h and continuously monitors the surroundings, providing real-time alerts about blind spots to enhance safety during lane changes. In contrast, 360-degree surround view is mainly used when navigating narrow alleys, passing through width-restricted areas, or during parking, resulting in relatively shorter operating durations. Different detection ranges: Blind spot monitoring typically detects objects within 10 meters behind the vehicle. Due to the larger blind spot areas of vehicles, radar detection technology is employed, offering a wide detection range. Meanwhile, 360-degree surround view focuses on measuring the distance between the vehicle and obstacles with high clarity and accuracy, requiring a detection range of approximately 60 centimeters around the vehicle body.

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Why is Vehicle Modification Illegal?

What Does Fuel System Cleaning Include?

Where Are the Car Drainage Outlets Located?

Why Does Water Enter the Passenger Side During Car Washing?

Should the clutch be fully depressed during hill start?

What is the reason for the Buick Excelle's air conditioner having normal airflow in gears 1-3 but no airflow in gear 4?

What is the Difference Between Blind Spot Monitoring and 360-Degree Surround View?

What is the function of the throttle?

What are the reasons for the malfunction indicator light in the Buick Excelle?

What Causes the Slight Steering Wheel Noise in a Corolla?

Is it okay to leave a car without power for a long time?