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ram cluster oil pressure gauge volt gauge fuel level go out then back on
The reason why Ram cluster oil pressure volt gauge fuel level go out then back on normally is that the sensor may be faulty and the circuit may be faulty. The oil light indicates insufficient oil pressure. If the oil light flashes or lights up during normal driving, you must stop immediately for rescue. Insufficient oil pressure is likely to cause serious engine failures such as engine overheating, cylinder scuffing, and cylinder holding. Common failure points of oil pressure lamps are: 1. Insufficient oil quantity leads to insufficient oil pressure; 2. The oil pressure sensor itself is faulty, causing the on-board computer to receive incorrect oil pressure data, so the oil pressure light is on; 3. There is a fault in the oil pressure sensor wiring harness, such as causing the oil pressure light to light up open circuit or short circuit.
Fault analysis of low oil pressure.The phenomenon of low oil pressure fault is that the engine oil pressure is lower than the specified value at normal operating temperature and speed. At this time, the engine oil pressure warning light is on or flashing.
The main causes of low oil pressure faults are as follows.
① The oil pressure gauge or oil pressure sensor is out of calibration, and the sensor circuit is faulty.
② The engine oil has deteriorated, the viscosity is too low, and gasoline and water are mixed in the engine oil The oil level is too low.
So, using the oil pressure detector VAG1342 to measure the oil pressure, the idle oil pressure was only 40kPa, and the oil pressure was significantly too low. Increasing the speed and oil pressure can continuously rising, but the pressure remains low. At 2000r/min, the pressure is only 160kPa. Normally, at 2000r/min and the oil temperature is 80 ℃, the oil pressure should be between 270-450kPa. Due to the long distance traveled after the oil alarm, the oil pan was removed to check the wear of all bearing shells and thrust washers, and there were no abnormalities. Remove the foreign object and check that the pressure limit wire is not stuck. After reinstallation, measure the oil pressure, with an idle oil pressure of 400kPa. Continue to run the engine until the fan is working, increase the speed to 2000r/min, and the oil pressure is 370kPa, which meets the range of 270-450kPa. There will be no more alarms and the fault will be resolved. The pressure limiting valve at the base of the oil filter was stuck by foreign matters, which led to untight closing, and the oil flowed into the oil pan through this point, resulting in low oil pressure. During the vehicle maintenance process, communication with the user is very important, and it is important to understand whether the vehicle is being repaired at a regular service station
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