How to change the warm air box of Chevrolet Le Feng?

1) Drain the coolant from the cooling system.

2) Remove the control panel.

3) Separate the cable bracket on the left side of the heater and remove the screw on the terminal.

4) Unplug the wire connector behind the blower motor.

5) Disconnect the vacuum tube and lighting line behind the heater control device.

6) Place a container under the engine and under the water supply pipe of the heater behind the cylinder head.

7) Disconnect the heater water supply pipe behind the cylinder head.

Extended data:

Function:

1, which helps to prevent overheating of automobile engines, and has the functions of preventing boiling in summer, freezing in winter, corrosion prevention all year round, scale prevention, rust prevention and foam prevention.

2. It can protect cast iron, brass, copper, aluminum alloy, solder and rubber parts.

It is compatible with any antifreeze and cooling water. Take care of the water tank and all cooling system components all the year round to protect your travel. Suitable for all kinds of automobile, ship engine water tanks and various industrial cooling water circulation systems.

Precautions:

1, new fluid:

Add new water from the water pipe of the water tank (radiator), which is the way to make antifreeze flow into the water tank quickly. Then add a bucket of water tank to the antifreeze tank until the antifreeze tank is almost full, and take a taxi for about 10 minutes. At this time, the liquid level of the cooling system drops due to the exclusion of some air, and then antifreeze is added and filled to the highest mark of the storage tank.

2. Check:

Before replacing the antifreeze at the bottom, it is necessary to make a comprehensive inspection to see the traces of incorrect leakage in each pipeline. The key point is to check the five-way water pipe, which is named after the five interfaces connecting all parts. The water in the water tank is distributed to different parts of the car after passing through five water pipes. If this part leaks from the water tank, replace the water pipe or re-fix the interface according to the situation.

3, waterproof:

Empty the old water tank, and then clean the liquid channel with clean water. Add clean water to the water tank, then inject clean water into the tank to make the clean water continuously flow through the engine cooling system, and then idle for 3 to 5 minutes to make the water circulate. The water in the pitcher is a little pink at first. Continue to inject clean water until the water becomes clean.

Be careful not to forget to remove the heating water pipe and clean the water in the heating water tank.

References:

Baidu encyclopedia-water tank water