What brand of SUV is Forthing?

What is the reason for the loud exhaust sound of the Dayang ADV150?

The loud exhaust sound of the Dayang ADV150 is caused by a malfunction in the exhaust pipe muffler. Below is a detailed introduction to the internal structure of the exhaust pipe muffler: 1. Connecting sleeve: Equipped with an oil-soaked asbestos sealing ring to prevent air leakage at the interface between the exhaust pipe and the muffler tube. 2. Muffler tube: The muffler tube is welded with 7 partition plates, dividing it into 8 silencing chambers (seven expansion chambers and one resonance chamber). The tube core features inverted triangular flow guide grooves and numerous small holes. When the high-temperature exhaust gas from the engine enters the muffler at high speed through the exhaust pipe, the gradually increasing cross-sectional area of the muffler tube allows the gas to expand, reducing its velocity and attenuating the strong pulsating noise. As the gas continues to flow through each expansion chamber, it is forced to pass through the throttling holes on the partition plates and the tube core due to the obstruction of the plates. This causes the gas to be suddenly compressed, split into many fine streams, and then suddenly expand again. Such repeated abrupt changes greatly attenuate the sound energy, thereby reducing the exhaust noise.

19

1

Share

What causes the rattling noise in Volkswagen 1.4T engine?

Reasons for the rattling noise in Volkswagen 1.4T engine: 1. Cold start noise: Many car owners hear a "rattling" noise from the engine compartment during cold starts. This noise is actually caused by the fuel pump not fully establishing oil pressure during a cold start, resulting in insufficient lubrication for various components. Normally, the rattling noise will disappear after the engine runs for a while. 2. Charcoal canister solenoid valve operation noise: The function of the charcoal canister solenoid valve is to open the solenoid valve between the charcoal canister and the intake manifold after the engine starts, allowing the adsorbed gasoline vapor in the charcoal canister to enter the cylinder along with air for combustion. This not only reduces emissions but also lowers fuel consumption. This component may also produce a rattling noise during operation.

4

1

Share

Is a 30 cm distance mandatory for the oncoming vehicle test in Subject 3?

Subject 3 oncoming vehicle test requires a distance no greater than 30 cm. Below are detailed explanations regarding the oncoming vehicle test in Subject 3: 1. Reference point: Identify a reference point, such as a protruding point on the windshield wiper. When this point aligns with the solid line on the right side of the road, the vehicle's body is approximately 30 cm away. Alternatively, any prominent point on the vehicle can serve as a reference. Due to differences in height and viewing angles among drivers, reference points may vary. 2. Braking and deceleration: When performing the oncoming vehicle test, immediately apply the brakes to decelerate and shift to a lower gear in advance. During this test, attention is primarily focused on observing the distance and adjusting the direction. Most learners should avoid simultaneously steering and shifting gears while performing the oncoming vehicle test.

11

0

Share

How much horsepower does the Volkswagen CC 2.0T have?

As can be seen from the table above, the 2021 Volkswagen CC 330TSI Xuanmu Edition is equipped with a 2.0T turbocharged engine, with a maximum horsepower of 186Ps, a maximum power of 137kW, and a maximum torque of 320N·m, paired with a 7-speed dual-clutch transmission. Here is some relevant information about the Volkswagen CC 2.0T: 1. Design: The current CC model features Volkswagen's signature front face, with updated front and rear lights that look great. The space is neither overly spacious nor too cramped. 2. Reputation: It offers high value for money, has a good reputation, boasts an outstanding and stylish exterior, and comes with luxurious configurations, making it a top contender in its class in all aspects. 3. Design Aesthetics: The car has a sleek and elongated body with excellent aerodynamics. It combines the fashionable feel of a sedan with the dynamic lines of a sports car.

18

1

Share

What are the dimensions of the new Maxus V90 long-wheelbase medium-roof model?

Maxus V90 long-wheelbase high-roof model has external dimensions of 5545mm in length, 2110mm in width, and 2525mm in height, with an interior height of 1760mm and interior width of 1800mm. The depth varies between 2650-3410mm depending on the model. The vehicle offers seven body structure options to meet different customer needs. More details are as follows: 1. Exterior: The new model adopts the latest family design style, featuring an oversized chrome polygonal grille with four horizontal chrome bars inside. The L-shaped fog lamp area has a sporty look that appears very bold. The body and rear adopt common square designs but with smooth overall lines. Details like side windows, waistline, taillights, rear window, and tailgate are more stylish compared to the older model. 2. Interior: Equipped with a multifunction steering wheel, panoramic side windows, and flush sliding windows for a more comfortable ride. Users can also opt for a 10.1-inch HD central touchscreen and 4.2-inch LCD instrument cluster for a refined and premium driving experience. It features the Bosch ESP9.3 system, a new high-performance quad-core processor, and ADAS intelligent driving assistance system for richer smart connectivity.

20

3

Share

Is Engine Emission Failure Easy to Repair?

Engine emission failure is not easy to repair. Reasons for engine emission failure: Poor quality of car gasoline with inferior fuel may lead to abnormal mixing ratio, electronic equipment failure, and abnormal exhaust system; Faulty electronic components in the intake system, such as oxygen sensors, carbon canister solenoid valves, throttle valves, and engine carbon deposits; The engine control program needs to be updated or debugged. Solutions for engine emission failure: Check the spark plugs and cylinder wires; Conduct a fuel pressure system test; Inspect the injectors of each cylinder; Examine the fuel pump and its circuit; Additionally, check the cylinder pressure, intake and exhaust valve clearance, fuel vapor control solenoid valve, EGR valve cylinder operation, and whether the intake manifold leaks.

4

0

Share

What brand of SUV is Forthing?

What is the reason for the loud exhaust sound of the Dayang ADV150?

What causes the rattling noise in Volkswagen 1.4T engine?

Is a 30 cm distance mandatory for the oncoming vehicle test in Subject 3?

How much horsepower does the Volkswagen CC 2.0T have?

What are the dimensions of the new Maxus V90 long-wheelbase medium-roof model?

Is Engine Emission Failure Easy to Repair?

Is Geely's Engine Technology from Volvo?

What is the reason for the slow response of the Volkswagen CC's window when opening the door?

Why does the Buick ambient temperature always display -40 degrees?

Where is the oil pressure sensor located on the Volkswagen 1.4T engine?