Engine Lacks Power
Black Exhaust Smoke
Blue Exhaust Smoke
High Oil Consumption
Turbocharger Noisy
Engine Running Hot
Poor Transient Response
Smoke
Cyclic Sound from the Turbocharger
Oil Leak from Compressor Seal
Oil Leak from Turbine Seal
Dirty air cleaner
Clean or replace element according to manufacturer’s recommendations
Restricted compressor intake duct
Remove restriction or replace damaged parts as required
Restricted air duct from compressor to intake manifold
Remove restriction or replace damaged parts as required
Restricted intake manifold
Refer to engine manufacturer’s manual and remove restriction
Air leak in feed from air cleaner to compressor
Replace seals, gaskets or tighten fasteners as required
Air leak in feed from compressor to intake manifold
Replace seals, gaskets or tighten fasteners as required
Air leak between intake manifold and engine
Refer to engine manufacturer’s manual and replace gaskets or tighten fasteners as required
Foreign object in exhaust manifold (from engine)
Refer to engine manufacturer’s manual and remove obstruction
Restricted exhaust system
Remove restriction or replace damaged parts as required
Exhaust manifold cracked, gaskets blown or missing
Refer to engine manufacturer’s manual and replace gaskets or damaged parts as required
Gas leak at turbine inlet/exhaust manifold joint
Replace gasket or tighten fasteners as required
Gas leak in ducting after turbine outlet
Refer to engine manufacturer’s manual and repair leak
Restricted turbocharger oil drain line
Remove restriction or replace damaged parts as required
Restricted engine crankcase breather
Refer to engine manufacturer’s manual, clear restriction
Turbocharger bearing housing sludged or coked
Change engine oil and oil filter, overhaul or replace turbocharger as required
Fuel injection pump or fuel injectors incorrectly set
Refer to engine manufacturer’s manual and replace or adjust faulty components as required
Engine valve timing incorrect
Refer to engine manufacturer’s manual for correct settings and adjust as required
Worn engine piston rings or liners
Refer to engine manufacturer’s manual and repair as required
Burnt valves and/or pistons
Refer to engine manufacturer’s manual and repair as required
Excessive dirt build up on compressor wheel and/or diffuser vanes
Contact your local approved dealer
Turbocharger damaged
Find and correct cause of failure, or replace turbocharger as necessary
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