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oil pressure gauge and water temp gauge psi
When the engine is operating, If the psi oil pressure gauge pointer is "The outer side of position 0,. Does not move. This is generally caused by the open circuit of the wire from the ignition switch to the oil pressure gauge or the burning of the internal resistance coil of the sensor and the oil pressure gauge. The general red light is always on, the engine is turned off, the ignition lock is turned on, the wire on the sensor terminal is removed, and the light is still on, which indicates that there is a grounding point between the indicator lamp and the sensor. If the light is not on, it means that the bulb is burnt out or the sensor is faulty. The installation direction of the sensor is correct, and So as to prevent the hot gas flow of heating bimetal inside the sensor from directly radiating and heating other parts. After the oil pressure gauge or coolant temperature gauge is installed, the two terminals can be connected at will, that is, one is connected to the ignition switch and the other is connected to the sensor. No matter how connected, the current in the circuit will not change, so it will not affect its indication value.
Water temp gauge: when installing the water temperature gauge, connect a ground wire from the screw on the water temperature tee to the body grounding. Oil pressure gauge: after the oil temperature gauge or oil pressure gauge is installed, if the pointer cannot reach the top, it is also necessary to connect a ground wire on the sensor to the auto or marine body.
The water temperature gauge can be used to indicate whether the operating temperature of the cooling water in the engine water pump is normal. The function of the automobile or marine instrument is to help the driver master the working conditions of the main parts of the automobile at any time. The automobile repair shop shall be responsible for the maintenance, repair and use of new batteries. The heating and ventilation device, electric seat moving mechanism and generator are the power supply of the electric appliance. When the pointer of the oil pressure gauge indicates that the oil pressure is abnormal, it indicates that the engine components are faulty. If the pressure indicated by the pointer of the oil gauge is low or the indication of the pointer of the instrument fluctuates greatly, it may be caused by the large wear of the oil pump, the blockage of the filter by dirt, the exposed oil surface of the oil suction screen, the low oil level, the air mixed in the oil passage and the failure of the pressure gauge.
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