Maintenance of motor vehicle cooling system

Check whether the shutter blades are fully open, and whether the blades and the radiator have an angle of 90 degrees. If not, adjust the angle; check whether the blade connecting rod of the shutter is connected with the shaft hole of the tie rod and whether the fixing bolts are loosely deformed. There should be tightened or replaced. Inspect the pump housing for cracks and leaks and repair or replace if necessary. Check the cooling fan belt tension. The method is: apply about 4 kilograms of pressure on the connecting belt between the fan and the engine pulley. And the belt press distance should be maintained at about 15 mm. Check the thermostat's working condition. When the vehicle is started in the cold state, if the temperature of the cooling water rises slowly, the radiator cap needs to be opened to check the water temperature. If it is found that the water in the cylinder water jacket and the water in the radiator heat up at the same time, the section The heater is not working properly or has failed and should be repaired or replaced. Clean the cylinder water jacket and the scale in the tank.

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