10 common truck breakdowns

Trucks often experience minor malfunctions during use. If detected in a timely manner, it can avoid the need for replacement parts or even going to a repair shop. 

1. Engine oil level check

Park the vehicle on a level surface. Pull out the vernier scale to check the oil level, the oil is within the normal range if it is within the ( F) and (L) marks. If it is below the (L) level, then the specified type of oil should be added, and the level after refueling should not be higher than the ( F) level.

2. Engine coolant level check

When the engine is hot, never open the radiator cap to avoid being scalded by splashing coolant or high-temperature steam. Wait for the engine to cool down before checking the coolant level. Ensure that the coolant level is between the "full" and "low" marks. If necessary, add distilled water or purified water, but ensure that the liquid level does not exceed the "full" mark. If you notice a rapid decrease in coolant level within a short period, check the cooling system for leaks.

3. Brake fluid level check

If the brake fluid level is between the high and low marks, it indicates normal conditions. However, if the brake fluid level is close to or below the lower limit, it suggests a possible system leak or excessive wear of the brake pads. In such cases, it is important to promptly visit a repair station for inspection. When adding brake fluid, ensure that you use the same type of brake fluid.

4. Check clutch master cylinder fluid level

Clutch fluid level between the high and low fluid mark is normal, if it is below the standard line, it may be the main pump or sub-pump seals damage. It will be difficult or impossible to shift, please go to the nearest service station immediately for repair.

5. Maintenance and inspection of batteries

Check whether the battery is firmly fixed.

The electrolyte should be between the upper and lower markings, and when it is close to the lower line, the electrolyte or distilled water should be replenished to the high line in time.

Keep the positive and negative battery cables in good contact, and keep the battery clean and dry.

If the vehicle is not started for a long time, you need to take off the positive and negative battery cables and rewire them about half a month apart to start the engine for about 20 minutes, and then recharge the battery if it is significantly undercharged.

6. Inspection of tires

Tire air pressure should be checked at room temperature every month, and if it is lower than the normal standard, it should be replenished in time. The air pressure should not be too high or too low, otherwise it will affect the safety of driving. Check the surface condition of the tires, and replace the tires in time if there are safety hazards.

7. Inspection of belts

When starting or driving a vehicle, if the belt makes noise, there are two possibilities. One is that the belt has not been checked or adjusted for a long time, and it can be adjusted according to normal standards. The other possibility is that the belt is aging and needs to be replaced.

 8. Inspection of air filter

An excessively dirty air filter can cause poor engine performance, increased fuel consumption, and even engine damage. When inspecting the air filter, if you find a small amount of dust, you can use compressed air to blow it clean and continue using it. However, if the air filter is excessively dirty, it should be replaced promptly.

9. Inspection of spark plugs

The regular spark plug's insulating ceramic is intact, with no signs of cracking or leakage. The spark plug clearance is 0.8 +/- 0.0mm, and during discharge, the spark appears blue. If any anomalies are detected, adjustments to the clearance or replacement of the spark plug may be necessary.

10. Inspection of gasoline filters

If you find that the oil supply is not smooth, you should check whether the gasoline filter is clogged or not, if it is clogged, you should replace it in time.