China Naming Network - Weather knowledge - Chevrolet Lefeng, the car's cooling fan didn't find a high gear. What happened? Under what circumstances will the high gear shift?
Chevrolet Lefeng, the car's cooling fan didn't find a high gear. What happened? Under what circumstances will the high gear shift?
There are two switches to control the high-speed rotation of the electronic fan.
(1) On the back of the cylinder head, under the ignition coil, there is a water temperature control electronic fan that rotates at high speed.
(2) There is a four-wire switch on the air-conditioning high-pressure pipe in front of the condenser, which is the air-conditioning pressure switch. When the air conditioning pressure reaches a certain level, the electronic fan is controlled to rotate at high speed.