Symptom Troubleshooting Index

TROUBLESHOOTING TABLE

Symptom	Diagnostic procedure	Also check for
Excessive engine oil consumption	Check for oil leaks. Check for worn valve guide(s) (see VALVE INSPECTION ) or worn valve stem seal(s) (see VALVE, SPRING, AND VALVE SEAL REMOVAL ). Check for damaged or worn piston ring(s) (see PISTON RING REPLACEMENT ). Check for damaged or worn engine internal parts (cylinder wall, pistons, etc.) (see BLOCK AND PISTON INSPECTION ).	Check the maintenance records as engine oil that is worn out burns off at a higher rate
Low oil pressure indicator does not come on with the ignition switch in ON (II)	Do the low oil pressure indicator circuit troubleshooting (Open) procedure (see LOW OIL PRESSURE INDICATOR CIRCUIT TROUBLESHOOTING (OPEN) ).	An open in the wire between the engine control module (ECM)/ powertrain control module (PCM) and the oil pressure switch
Low oil pressure indicator stays on	Check the engine oil level. Do the low oil pressure indicator circuit troubleshooting (Short) procedure (see LOW OIL PRESSURE INDICATOR CIRCUIT TROUBLESHOOTING (SHORT) ).	A wire shorted to ground between the engine control module (ECM)/ powertrain control module (PCM) and the oil pressure switch