What are the reasons why the Buick Excelle suddenly cannot start?

What is the difference between S gear and L gear? How to use S gear and L gear?

Introduction to the differences between S gear and L gear: 1. Different nature: L gear is the low gear; S gear is the sport gear. 2. Different characteristics: In S gear sport mode, the gearbox delays the upshift timing, keeping the engine at high speed for a longer time, allowing the car to move at low gear and high speed for a longer time, thereby obtaining greater torque output and acceleration. When the user engages L gear, the car will not upshift and will continue to move forward at high speed and low gear, which can better pull cargo. 3. Different functions: L gear can be used to control speed, climb slopes with heavy loads, and increase traction when driving on muddy roads. S gear can be used for overtaking and acceleration, fully releasing the engine's power.

6

1

Share

How to Read the Refrigerant Pressure Gauge?

Introduction to reading the refrigerant pressure gauge: The automotive refrigerant pressure gauge typically has two dials, one blue and one red. The blue dial indicates low pressure, while the red dial indicates high pressure. Under normal operation of the air conditioning system, the low pressure should be between 1.0—2.5 bar, and the high pressure should be between 15—18 bar. If the low pressure is higher or lower than this range, it indicates abnormal expansion valve regulation or issues with the compressor's performance. Below are more details: 1. To measure the high and low pressure of the air conditioning system, the engine should be idling, and the measurement should be taken at an ambient temperature of 35℃, with the internal circulation air volume as the standard. 2. Normal high pressure: should be 1.3-1.7 MPa (13-17 kg/cm2 or 190-250 Lbf/in2). 3. Normal low pressure: should be between 0.20-0.25 MPa (2-2.5 kg/cm2 or 25-35 Lbf/in2), and must never exceed 0.25 MPa (approximately 2.5 kg/cm2).

4

Share

What are the speed limits for urban roads and highways with or without center lines?

For motor vehicles on roads without center lines, the speed limit is no more than 30km/h on urban roads and no more than 40km/h on highways. For motor vehicles on roads with center lines, the speed limit is no more than 50km/h on urban roads and no more than 70km/h on highways. Below is the relevant introduction: Reasons for speed limits on roads without center lines: Primarily for driving safety, these roads often have non-motorized vehicles present, so high-speed driving is not allowed. Especially on village or rural roads, extra caution is needed as there may be pedestrians crossing or animals appearing on the road. Driving too fast may result in insufficient time to avoid, leading to other traffic accidents. Moreover, these roads are generally narrow, and accidents often result in more severe consequences. Reasons for vehicle speed limits: Excessive vehicle speed can easily cause traffic accidents.

12

3

Share

Does a Matte Car Wrap Need to Be Registered at the DMV?

Matte car wraps need to be registered at the DMV. Transparent car wrap films do not require registration. According to current motor vehicle registration regulations: If the area of the changed body color does not exceed 30%, no vehicle modification registration is required. If the color change area exceeds 30%, it must be registered at the DMV. Unauthorized changes to the vehicle body color and other situations listed below will result in fines: 1. Heavy-duty and medium-duty trucks and their trailers that fail to display the enlarged license plate number as required or have unclear enlarged plate numbers on the body or rear of the compartment. 2. Motor vehicles with sprayed or pasted logos or body advertisements that affect safe driving. 3. Trucks and trailers that fail to install side and rear underrun protective devices or paste reflective body markings as required. 4. Motor vehicles that fail to undergo safety technical inspections within the specified period. 5. Changing the body color, replacing the engine, body, or frame without completing the modification registration within the time limit specified in Article 10 of these regulations. 6. After the ownership of a motor vehicle is transferred, the current owner fails to complete the transfer registration within the time limit specified in Article 18 of these regulations.

14

3

Share

What is a P-class driver's license?

P-class license allows driving trams. The regular family cars commonly seen on the road require either C1 or C2 license, which are not interchangeable with the P-class license. The P-class driver's license must be obtained from driving schools designated by the local urban public transport department, as it is specifically for operating trams. For application procedures, inquiries should be made at the local urban public transport department. Requirements for applying for a P-class license: 1. Age: Applicants must be between 20 and 50 years old; 2. Vision: Uncorrected or corrected visual acuity must reach 5.0 or above on the logarithmic visual acuity chart; 3. Color vision: No red-green color blindness; 4. Hearing: Ability to discern the direction of sound with each ear at 50 cm from a tuning fork; 5. Upper limbs: Both thumbs must be intact, with at least three fingers functional on each hand, and normal limb and finger movement; 6. Lower limbs: Both lower limbs must be intact with normal movement function, and length discrepancy should not exceed 5 cm; 7. Trunk and neck: No movement dysfunction.

17

4

Share

What is the solution for a tight right front wheel brake?

The solution for a tight right front wheel brake is: inspect and adjust the free travel of the brake master cylinder, clean the right brake wheel cylinder or replace it with a new one. Here are some precautions regarding braking: 1. Braking speed: For long-distance braking, release the accelerator first and then apply the brakes. When braking on long downhill slopes, use engine braking to slow down the descent. 2. Braking timing: When braking during sharp turns, reduce the vehicle speed in advance and take the turn slowly. On bumpy roads, drive slowly and apply the brakes gently. In rainy or snowy conditions, control the vehicle speed and be prepared to brake in advance.

2

Share

What are the reasons why the Buick Excelle suddenly cannot start?

What is the difference between S gear and L gear? How to use S gear and L gear?

How to Read the Refrigerant Pressure Gauge?

What are the speed limits for urban roads and highways with or without center lines?

Does a Matte Car Wrap Need to Be Registered at the DMV?

What is a P-class driver's license?

What is the solution for a tight right front wheel brake?

What is the logo of the Lvaida in Volkswagen?

What are the hazards of P130A cylinder compression ratio fault with misfire in cylinder 1?

What type of oil is used in rotary vane vacuum pumps?

What Are the Consequences of a 6-Point Deduction?