Cause • Cold engine • No Intake Air Heater (IAH) operation • Poor quality fuel • EGR stuck open on startup • EGR cooler leaking…

Cause • Air intake or exhaust restriction • Turbocharger failure, turbocharger blade damage or turbocharger wheel stuck • Loose or failed injector • Altitude (black…

Two types of smoke conditions can occur, black and white. Dark-gray smoke is considered black smoke. Light-blue smoke is considered white smoke. Refer to the…

Cause • Engine oil (aerated, incorrect grade, low oil level, extended drain interval) • Poor fuel quality • Low fuel pressure • Aerated fuel •…

CAUTION: Do not add fuel to the fuel filter header. This can add contaminates to the fuel. Tools • Fuel Pressure Gauge • Fuel pressure…

1. Remove the front cover assembly (front half) from the engine following the procedure in the Engine Service               …

1. Remove and inspect the lube oil pump as described in the Engine Service Manual. • Inspect the lube oil pump housing and plate for…

1. Drain oil from engine. Inspect oil drain plug magnet, drained oil and oil filter for foreign debris. • An oil sample should be taken…

1.Remove and inspect oil pressure regulator as described in the Engine Service Manual. • The oil pressure regulator piston should move freely in its bore.…

1. Park vehicle on level ground. 2. Check oil level with oil level gauge. NOTE: Never check the oil level when the engine is running…