engine oil pressure water temp voltmeter gauge

• 2022-08-11

When the engine is operating, If the 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.

However, after the fuel gauge is installed, it can not be connected arbitrarily, that is, the upper terminal must be connected to the ignition switch, while the lower terminal can only be connected to the sensor. Otherwise, the pointer will always point to "0". Voltmeter: the so-called voltmeter, of course, is used to measure the voltage of the car battery. This meter is the simplest to install. Two power lines and two light bars. It is OK to connect the positive and negative poles of the power supply. Water temperature meter: when installing the water temperature meter, connect a ground wire from the screw on the water temperature tee to the body ground.

Dirty or viscous oil causes the oil pump not to effectively suck in and pump out the oil, resulting in low or no oil pressure. Solution: change the oil. Oil leakage from the oil pipe, damage to the oil pump or excessive wear of its parts and components will lead to the reduction of oil suction and pump output, or no oil at all, resulting in low or no oil pressure. Solution: overhaul. Low oil pressure due to faulty oil sensing plug, pressure gauge or circuit. Solution: replace and check.