1. Low Oil Level: Check the oil level using the dipstick to ensure that it is between the "Add" and "Full" marks on the dipstick. If the oil level is low, add the recommended oil as specified in your owner's manual.
2. Faulty Oil Pressure Sensor: If the oil pressure sensor is malfunctioning, it may provide incorrect readings to the instrument panel, causing the oil indicator to swing back and forth. Consider having the sensor checked or replaced if the issue persists.
3. Electrical Connection Issues: Check the electrical connections related to the oil pressure sensor and the instrument panel. Loose or damaged connections can affect the accuracy of the oil indicator readings.
4. Defective Oil Indicator: In some cases, the oil indicator itself may be faulty, causing the erratic behavior. Consider having the indicator assembly checked or replaced if necessary.
5. Oil Pump Problems: If the oil pump is not functioning properly, it might cause fluctuations in oil pressure, resulting in the swinging indicator.
6. Engine Issues: In rare cases, underlying engine problems can lead to oil pressure irregularities. If you experience other symptoms like unusual noises or performance issues, it's best to have your vehicle inspected by a qualified mechanic for proper diagnosis and repair.
Since this issue started after an oil change, I recommend verifying the oil level and condition first. If the oil level is correct, it's a good idea to have a professional mechanic inspect the vehicle to identify the exact cause of the swinging oil indicator and address the problem appropriately.
