Symptom
Low oil pressure can cause any or all of the following:
• Red ENGINE lamp
• DTC 313 – Engine oil pressure below warning level
• DTC 314 – Engine oil pressure below critical level
• Engine knock
• Engine hard start or no start condition
• Engine loss of power
• DTC 335 – ICP unable to build pressure during cranking
• DTC 333 – Injection control pressure above/below desired level
Cause
• Instrument panel gauge error
• Low oil level: oil leak, oil consumption or incorrect servicing
• High oil level: incorrect servicing, fuel in oil or coolant in oil
• Incorrect oil viscosity
• Incorrect EOP sensor
• Stuck oil pressure regulator
• Scored/damaged oil pump
• EOP sensor biased
• Broken, missing or loose piston cooling tube(s)
• Missing, damaged or worn bearing inserts or camshaft bushings
• Aeration (cracked pickup tube or pickup tube gasket)
Tools
• EST with MasterDiagnostics® software
• EZ-Tech® interface cable
• Gauge bar tool
• Air Regulator
• Shut-off valve
