Diesel Data: Automotive Repair

Low Oil Pressure Indicator Stays On




Low oil pressure indicator stays on

Check the engine oil level.

Do the low oil pressure indicator circuit troubleshooting (Open) procedure Low Oil Pressure Indicator Circuit Troubleshooting - Open.

Test the oil pressure switch Testing and Inspection.

Check the engine oil pressure Testing and Inspection.

Check the oil filter for clogging.

Check the oil strainer for clogging.

Check the relief valve Service and Repair.

Test the oil pump.

Also check for

An open in the wire between the PCM and the oil pressure switch