2003 dodge cluster prndl oil pressure volt gauge fuel level go out then back on

2022-05-13

If the engine oil indicator lights up when the car is started and goes out after a while, it indicates that it is the self-test process of the car. If the engine oil lamp is on during driving, you need to stop and ask for rescue. If the engine oil light doesn't light up after the car is restarted, . The automobile oil pressure is detected by the automobile oil pressure sensor. The data detected by the sensor can help control the normal operation of the automobile engine and eliminate potential safety hazards in time.

When the car is working, the working environment is very bad, so the requirements for oil pressure sensor are relatively strict. When selecting the oil sensor used in automobile, it is necessary to select the pressure measuring device with high temperature and corrosion resistance, and take anti-interference measures in the circuit design. The reliability of the oil pressure sensor can be improved. The oil pressure sensor is mainly installed on the main oil passage of the engine to convert the pressure signal into an electrical signal and send it to the signal processing circuit.

The oil pressure light is on. Common fault points are:

1. Insufficient oil volume leads to insufficient oil pressure.
The amount of oil pumped by the oil pump decreases, so the oil pressure decreases and the oil pressure light is on. It is necessary to check whether the engine has leakage points or oil burning faults.

2. The oil pressure sensor itself has a fault, which leads to the incorrect oil pressure data received by the on-board computer, so the oil pressure light is on.

3. There is a fault in the harness of oil pressure sensor, such as open circuit or short circuit, which causes the oil pressure lamp to light up.

4. There is a fault in the oil pressure lamp inside the instrument panel, which causes the oil pressure lamp to be common (generally, the possibility of this fault is very small).

5. The oil pump itself has failed. Internal wear of oil pump.

6. The oil pipeline inside the engine is blocked, resulting in the oil pressure light on.