Paragraph Feng Tianjia is beautiful 1992 3 cars, embarking 3VZ-FE engine. According to client report, after engine starts, radiator fan is blocked with high speed from beginning to end rotate, this breakdown has been in other repair plant maintenance to did not foster cordial relations between states for many times.
After receiving a car, open engine hatchcover above all, starting engine, radiator fan instantly high speed rotates. After engine works for some time, the conduit on radiator of the feeling that use a hand feels hot, the conduit below feeling feels not hot. Did radiator jam cause cooling fluid temperature exorbitant and make radiator fan high speed rotates? Enquire to be informed after the client, to remove trouble, this car just has cleaned radiator, and had undertaken radiator is replaced, but fluctuation conduit difference in temperature is bigger still. Since such, can eliminate radiator to have the possibility of the problem first. With infra-red the cooling fluid temperature that measures Wen Yi to measure engine, the author discovers water is warm not tall, and lukewarm table of client report water is in inferior position from beginning to end, then the author affirms is radiator fan from beginning to end high speed rotates cause thermostat to was not opened, so of radiator sail upstream to be in charge of and issue conduit difference in temperature bigger.
Will search the account that radiator fan high speed rotates below. Examine radiator fan to dominate systematic circuit picture, this engine was deployed by system of fan of radiator of computer pilot fluid pressure type. Engine drives hydraulic pump to rotate generation oil pressure, by hydraulic pressure oil electric machinery of hydraulic pressure of drive radiator fan rotates. The idle of sensor of position of door of the signal of engine rotate speed that radiator fan controls unit basis to input, solar term signal of signal of temperature of cooling fluid of fast signal, engine and air conditioning job, through hydraulic pressure oil discharge electromagnetism a powerful person controls hydraulic pressure oily discharge to realize the control of pair of cooling fan rotate speed. Be informed accordingly, the place that this car needs to check includes rotate speed of road of vitta of electric machinery of hydraulic pressure of fan of hydraulic pump, radiator, hydraulic pressure and radiator fan to control a system.
News source: Steam matchs author of news of business affairs network: This station reporter
