How to Properly Use the Pull Function on a Truck?

Should the internal circulation be turned on when AC is on?

After turning on the AC, if cooling is required, the internal circulation must be activated; otherwise, it would be ineffective. Below is an introduction to internal circulation: Function introduction: Internal circulation is a state of the car's air conditioning system. In this state, the air exchange channels between the inside and outside of the car are closed. When the fan is off, the air inside the car does not circulate; when the fan is on, the air drawn in comes only from inside the car, forming an internal air circulation. Principle: Car air conditioning systems generally have an electric or manual internal/external circulation switch. When external circulation is used, the air conditioning draws air from outside the car, while internal circulation reuses the air inside the car.

19

0

Share

What is the best mileage for the first maintenance of a new car?

Generally, the first maintenance for a new car is recommended at 5,000 kilometers. In most cases, it is advisable to visit the dealership for maintenance between 4,000 and 5,000 kilometers. Below is some extended information about car maintenance: 1. Car maintenance refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting, or replacing certain parts of the car, also known as car servicing. 2. Car maintenance mainly includes the maintenance of the engine system, transmission system, air conditioning system, cooling system, fuel system, power steering system, etc. 3. The purpose of car maintenance is to keep the car clean and tidy, maintain normal technical conditions, eliminate potential hazards, prevent faults, slow down the deterioration process, and extend the service life.

14

3

Share

What is the speed limit on curves?

When driving on sharp curves, the maximum speed should not exceed 30 kilometers per hour. Speeding poses risks, so safety must be prioritized while driving. Introduction to the risks of speeding: The dangers of speeding on curves are not limited to the increased likelihood of rollovers. More importantly, curves often have large blind spots, and if there is oncoming traffic, the probability of severe accidents resulting in fatalities is significantly higher. Driving precautions: Before entering a curve, honking can alert potential oncoming vehicles. It is crucial to control speed and maintain a safe distance while driving. Keeping a safe distance is essential, and drivers should also look ahead to assess road conditions and surroundings.

7

2

Share

Where is the suspension stiffness adjustment button for the Avalon?

The Avalon does not provide a button for suspension stiffness adjustment, as it employs an automatic suspension stiffness adjustment system. Below are the detailed specifications of the Avalon: 1. The Avalon features a sporty design overall and is classified as a mid-size sedan. 2. The Avalon offers two engine displacement options: 2.0L and 2.5L. The maximum horsepower is 178ps and 209ps, respectively; the maximum power output is 131kw and 154kw; and the maximum torque is 221N·m and 250N·m. 3. The fuel options include hybrid and gasoline, with the gasoline version requiring 92-octane fuel. The emission standards meet China 5 and China 6. The transmission options include E-CVT continuously variable transmission, CVT continuously variable transmission, and an 8-speed automatic transmission with manual mode.

11

4

Share

Is 90 Degrees Celsius Normal for Cummins Engine Coolant Temperature?

The normal operating temperature is around 90°C. Below are the common causes of overheating: Insufficient coolant: Coolant leakage can cause temperature rise. In this case, check for any signs of coolant leakage. If found, promptly repair the leaking pipes or components. If no leaks are detected, replenish with the same brand of coolant. Adding water is not recommended, especially in winter, as it can dilute the coolant even if it doesn't cause immediate malfunctions. Radiator fan malfunction: A faulty radiator fan may prevent proper heat dissipation during high-speed operation, causing heat to accumulate instead of transferring to the antifreeze. This leads to increased antifreeze temperature and potential boiling-over issues. If this occurs while driving, first reduce vehicle speed. Inspect whether the fan is functioning properly. If faulty, repair it immediately rather than waiting for the coolant to boil.

1

4

Share

What is the wading depth of new energy vehicles?

10CM. Currently, the only clearly defined standard for the wading depth of new energy vehicles is the national standard GB/T18383.3. This standard specifies that the wading depth for new energy vehicles should be 10CM, with a speed of 20KM/h, a travel distance of 500m, and a wading time of 1.5min. Below are the relevant details: Wading test standards: In fact, local regions also have their own wading test standards for new energy vehicles. For example, Shanghai's pure electric vehicle admission policy includes the mandatory DB31T634-2012 standard, which requires simulating the wading conditions during vehicle operation. Pure electric vehicles must drive through 15 centimeters of water at a speed of over 30km/h for a total wading time of 10 minutes. Then, in 30 centimeters of water, they must drive forward and backward at a speed of no less than 5km/h for a total wading time of 10 minutes. This test further ensures that new energy vehicles have sufficient safety for driving. Additionally, Beijing has its own local standard for electric vehicles, defining a wading depth of 20CM. Test methods: Furthermore, according to the "Safety Requirements and Test Methods for Power Batteries in Electric Vehicles" issued by the General Administration of Quality Supervision, Inspection and Quarantine, clear safety indicators and test methods are provided for individual power batteries and modules of new energy vehicles. Among these test methods, it is required that saltwater can easily corrode products. Battery cells, in a fully charged state, should be soaked in a 3.5% NaCL (sodium chloride, simulating seawater) solution for 2 hours without any incidents such as fire or explosion.

17

5

Share

How to Properly Use the Pull Function on a Truck?

Should the internal circulation be turned on when AC is on?

What is the best mileage for the first maintenance of a new car?

What is the speed limit on curves?

Where is the suspension stiffness adjustment button for the Avalon?

Is 90 Degrees Celsius Normal for Cummins Engine Coolant Temperature?

What is the wading depth of new energy vehicles?

How many cylinders does the Great Wall H4 engine have?

Is Semi-Clutch Start Unnecessary on Flat Roads?

Do All Four Ignition Coils Need to Be Replaced Together?

Can You Turn Right on a Straight Red Light?