FAULT FINDER
Engine lacks power
Dirty Air Cleaner
Clean or replace element according to manufacturer’s recommendations.
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 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
Black Exhaust Smoke
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
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
High Oil Consumption
Dirty Air Cleaner
Clean or replace element according to manufacturer’s recommendations
Restricted compressor intake duct
Remove restriction or replace damaged parts 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
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
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
Clean in accordance with details given in manufacturer’s manual
Turbocharger damaged
Find and correct cause of failure, repair or replace turbocharger as necessary
Turbocharger Noisy
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
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
Excessive dirt build up on compressor wheel and/or diffuser vanes
Clean in accordance with details given in manufacturer’s manual
Turbocharger damaged
Find and correct cause of failure, repair or replace turbocharger as necessary
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
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
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
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
Clean in accordance with details given in manufacturer’s manual
Turbocharger damaged
Find and correct cause of failure, repair or replace turbocharger as necessary
Cyclic sound from Turbocharger
Restricted compressor intake duct
Remove restriction or replace damaged parts as required
Excessive dirt build up on compressor wheel and/or diffuser vanes
Clean in accordance with details given in manufacturer’s manual
Oil leak from Compressor Seal
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
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
Clean in accordance with details given in manufacturer’s manual
Turbocharger damaged
Find and correct cause of failure, repair or replace turbocharger as necessary