The scorching summer heat is also a test for vehicle maintenance, especially for freight vehicles, which have more complex application conditions. The frequency of vehicle failures such as tire bursts, spontaneous combustion, water tank boiling, and aging wipers is also relatively high, and carelessness may pose a threat to driving safety.

As the saying goes, vehicles are "repaired in three parts and repaired in seven parts". Darong Car Bridge has compiled a comprehensive guide for summer car maintenance, which is simple and easy to use, so you no longer have to spend too much money on car maintenance.

1. Increase the frequency of tire pressure checks

Summer exposure to sunlight and high temperatures have a significant impact on tires. In order to ensure vehicle driving safety, it is necessary to regularly check tire pressure and control it within a reasonable range.

It is worth noting that high or low tire pressure can easily lead to a tire blowout. Therefore, before each trip, the owner should try to check the tire temperature, check the tire pressure, and adjust it appropriately according to the vehicle's load and road conditions.

If the temperature of the tire is too high, it is not advisable to pour cold water directly. Otherwise, it can easily lead to a sharp decrease in the external temperature of the tire while the internal temperature remains high, causing tire aging and internal structural damage, making it more prone to tire blowout.

2. Pay attention to the status of the coolant and monitor the temperature of the water tank

In summer, when the temperature is high, special attention should be paid to the water tank level and water temperature gauge. Once the temperature exceeds 95 ℃, it is necessary to stop the vehicle in a timely manner and open the engine hood for ventilation and heat dissipation. When the temperature of the water tank is too high, do not directly turn off the engine. Let the engine run at idle speed, and then choose to turn off the engine after cooling down.

Cooling fluid is also essential. Generally, the vehicle's coolant needs to be replaced once a year. If the owner finds that the coolant is insufficient, it is best to wait until the engine temperature drops before adding it to avoid burns. Some car owners like to add water to replace the coolant after discovering it is low. Do not do this because coolant can increase the boiling point and reduce the chance of the water tank boiling. Adding water alone cannot achieve this function.

3. Vehicle fluid inspection and replacement

As the temperature changes, the working environment of the oil on the vehicle will also change accordingly. Whether it is engine oil or lubricating oil, try to replace it with a viscosity suitable for summer use.

4. Pay attention to car paint maintenance

The summer weather is rainy, and rainwater flows down the car body, easily accumulating on the underside of the car body, causing rust. Therefore, it is best to clean the car body in a timely manner after heavy rain.

In addition, it is also important to pay attention to car washing in summer. Do not wash the car immediately when the body temperature is too high, as this can easily affect the adhesion of the paint surface. The frequency of body waxing should also be increased, which can add a protective film to the car paint to prevent rust on the paint surface.

5. Correct use of air conditioning in the car

Many car owners like to turn on the air conditioning for cooling as soon as they enter the car, which to some extent increases the workload of the engine and electrical system. It is recommended to first turn on the fan and windows to allow air circulation after entering the car, so that the air temperature inside and outside the car can be balanced. After five minutes, turning on the air conditioning will have a better cooling effect.

Similarly, after turning on the air conditioner, do not immediately close the windows. Wait until the temperature drops to a certain level before turning on the internal circulation. At the same time, it should be noted that the temperature inside the car should not be too low, otherwise it is not conducive to physical health.

6. Maintaining the ignition system

On rainy summer days, trucks may have a damp ignition system that makes it difficult to start the engine. If this situation occurs, you can first use a dry tissue or cloth to wipe the inside and outside of the power distribution panel, as well as the wires. Then, spray the desiccant on the cover of the power distribution panel, battery connectors, spark plugs, high-voltage wires, and ignition coils. After a while, you can start the engine.

7. Check if the wiper is aging

In summer, there is a lot of rain, and wipers are particularly important. If their adhesive strips age, they will not be able to completely remove rainwater from the windshield, affecting daily transportation. Therefore, car owners should also remember to check the windshield wipers and replace them promptly if they find that the rubber strips are aging.

8. Take cooling measures for the braking system

Especially for car owners who frequently walk on long downhill roads, it is necessary to take cooling measures for the braking system and promptly install auxiliary braking devices such as water spraying devices or hydraulic retarders. At the same time, try to choose low-speed gears and achieve slow downhill through engine torque and exhaust braking to reduce and avoid prolonged friction between the brake pads and brake drums, which can cause overheating and fire.

9. Pay attention to shaft head inspection and maintenance

It is recommended that car owners open all axle heads for inspection and maintenance during the shutdown period of the vehicle, such as the thickness of the brake pads, the degree of wear of the bearing balls, the status of the lubricating grease/oil, whether the brake components are rusted, whether the fasteners are loose, whether the gap between the camshaft and the bearing hole is too large, etc. After all, the structure of the wheel end axle head is complex, and any small link problem may cause irreversible consequences.