Why is the water temperature of Ruifeng car 90 degrees and the warm air not hot?

In fact, the structure of the warm air water tank is a simplified version of the radiator of the engine water tank, and there are many small cooling pipes in it, which are as easy to block as the radiator of the water tank. After the coolant flowing through the hot air tank is blocked internally, the speed becomes slower, the flow becomes smaller, and the heat is insufficient.

Second, only the automobile coolant can be replaced, and the replacement method is as follows:

1. Before changing the coolant, you must wait 10 minutes after the vehicle is turned off. After driving, the coolant temperature is very high and it is easy to burn.

2. Conduct an all-round inspection of the vehicle: check the pipeline for signs of leakage and cracks, and check the five-way water pipe. If this part of the coolant leaks, replace the water pipe or re-fix the connection according to the situation.

3. Lift the vehicle with a jack.

4. Tighten the screws of the bottom shell of the water tank with a wrench, and connect the old liquid with the waste basin.

5. Cover the expansion box cover with a thick towel, slowly loosen it until the air pressure is exhausted, and then completely remove the box cover. Pressurize the water inlet of expansion tank with compressed air spray gun or thick towel;

6. Add softened water and idle for 5 minutes, so that the inside of the cooling circulation system can be fully cleaned.

7. Add new antifreeze to the upper limit of water level.

8. Run at idle speed for 5 minutes, then observe the scale line of antifreeze tank and fill it up.