Troubleshooting the engine lubrication system (Opel Corsa C)

28. The indicator lamp does not light when the key is turned to position "I"

1. The oil pressure sensor is faulty. Turn on the ignition, disconnect the wire from the sensor and short it to ground - if the lamp lights up, replace the sensor.

2. There is no voltage supplied to the sensor, the contacts are corroded - check the condition of the corresponding electrical wiring.

3. The control lamp is faulty.

4. The instrument cluster is faulty.

29. The indicator lamp is activated after the engine is started

1. The oil level has dropped.

2. There is a short circuit in the oil level sensor wiring.

3. The sensor is faulty.

30. Too low oil pressure at all speeds

1. The oil level has dropped.

2. The mesh filter of the oil intake in the oil pan is clogged.

3. The oil pump is worn out.

4. The crankshaft bearings are damaged.

31. Too low oil pressure at low speeds

1. The crankshaft bearings are worn out.

2. Low viscosity of engine oil, dilution of oil due to strong heating, natural dilution of oil during operation or ingress of coolant into it. Check the condition of the oil immediately!

(The article was published on the website: OpelBook.ru)

3. Low engine oil level.

32. Too high oil pressure at engine speeds above 2000 rpm

Note: Oil pressure is measured using a special device, usually during maintenance work.

1. The system is filled with high viscosity oil.

2. The pressure reducing valve is faulty/dirty.