Engine Oil Pressure Sensor/Switch B High

Common symptoms

What you'll notice

• Check the oil level and ensure it is at the recommended level.
• Inspect the engine oil pressure sensor/switch and replace if it is faulty.
• Verify the wiring and connectors connected to the sensor/switch for any damage or loose connections.
• Perform an engine oil pressure test to determine the actual oil pressure.

Common causes

Most likely first

1. Faulty engine oil pressure sensor/switch
2. Low engine oil level
3. Engine oil contamination
4. Engine oil pressure relief valve malfunction
5. Engine oil pump failure

How to diagnose & fix

Work through it in order

1. Engine oil pressure warning light illuminates on the dashboard
2. Engine oil pressure gauge shows low or no pressure
3. Engine may overheat or run hot
4. Loss of power or engine stall
5. Loud or abnormal engine noises