Inspect coolant conditioner/filter assembly for leaks; inspect valves, lines, and fittings; replace as needed.
Inspect water pump and hoses; replace as needed.
Inspect, clean, and pressure test radiator, pressure cap, tank(s), and recovery systems; determine
Inspect thermostatic cooling fan system (hydraulic, pneumatic, and electronic) and fan shroud; replace as needed.
Air Induction, Exhaust Systems and Engine Brakes
Perform air intake system restriction and leakage tests; determine needed action.
Perform intake manifold pressure (boost) test; determine needed action.
Perform exhaust back pressure test; determine needed action.
Inspect turbocharger(s), wastegate, and piping systems; determine needed action.
Inspect and test turbocharger(s) (variable ratio/geometry VGT), pneumatic, hydraulic, electronic
controls, and actuators.
Check air induction system: piping , hoses, clamps, and mounting; service or replace air filter as needed.
Remove and reinstall turbocharger/wastegate assembly.
Inspect intake manifold, gaskets, and connections; replace as needed.
Inspect, clean, and test charge air cooler assemblies; inspect aftercooler assemblies; replace as
Inspect exhaust manifold, piping, mufflers, and mounting hardware; repair or replace as needed.
Inspect exhaust after treatment devices; determine necessary action.
Inspect and test preheater/inlet air heater, or glow plug system and controls; perform needed action.
Inspect and test exhaust gas recirculation (EGR) system including EGR valve, cooler, piping, filter,
electronic sensors, controls, and wiring; determine needed action.
Inspect and adjust engine compression/exhaust brakes; determine needed action.
Inspect, test, and adjust engine compression/exhaust brake control circuits, switches, and solenoids;
repair or replace as needed.
16. Inspect engine compression/exhaust brake housing, valves, seals, lines, and fittings; repair or replace as needed.
Fuel Supply System
Check fuel level, and condition; determine needed action.
Effective: January 2010