Troubleshooting
Please Click your symptom from the list and find out for possible solutions.
Click here for Consolidated Trouble Shooting Guide.
Engine lacks power
| Possible Problems |
Solutions |
| Clogged air filter element | Replace elements according to engine manufacturers recommendations |
| Obstructed air outlet duct from compressor to intake manifold | Remove obstruction or replace damaged parts as required |
| Air leak in duct from compressor to intake manifold | Correct leak by replacing seals or tightening fasteners as required |
| Air leak at intake manifold to engine joint | Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
| Obstruction in exhaust manifold | Refer to engine manufacturers manual and remove obstruction |
| Obstruction in muffler or exhaust stack | Remove obstruction or replace faulty components as required |
| Gas leak in exhaust manifold to engine joint | Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
| Gas leak in turbine inlet to exhaust manifold joint | Replace gaskets or tighten fasteners as required |
| Fuel injection pump or fuel injectors incorrectly adjusted | Refer to engine manufacturers manual - replace or adjust faulty component(s) as required |
| Engine camshaft timing incorrect | Refer to engine manufacturers manual and replace worn parts |
| Worn engine piston rings or liners (blowby) | Refer to engine manufacturers manual and repair engine as required |
| Internal engine problem (valves, pistons) | Refer to engine manufacturers manual and repair engine as required |
| Dirt caked on compressor wheel and/or diffuser vanes | Clean using a Non-Caustic cleaner and soft brush. Find and correct source of unfiltered air and change engine oil and oil filter |
| Damaged turbocharger | Analyze failed turbocharger, find and correct cause of failure, overhaul or replace turbocharger as required |
Black exhaust smoke
| Possible Problems |
Solutions |
| Clogged air filter element | Replace elements according to engine manufacturers recommendations |
| Obstructed air intake duct to turbo compressor | Remove obstruction or replace damaged parts as required |
| Obstructed air outlet duct from compressor to intake manifold | Remove obstruction or replace damaged parts as required |
| Air leak in duct from compressor to intake manifold | Correct leak by replacing seals or tightening fasteners as required |
| Air leak at intake manifold to engine joint | Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
| Obstruction in exhaust manifold | Refer to engine manufacturers manual and remove obstruction |
| Obstruction in muffler or exhaust stack | Remove obstruction or replace faulty components as required |
| Gas leak in exhaust manifold to engine joint | Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
| Gas leak in turbine inlet to exhaust manifold joint | Replace gaskets or tighten fasteners as required |
| Fuel injection pump or fuel injectors incorrectly adjusted | Refer to engine manufacturers manual - replace or adjust faulty component(s) as required |
| Engine camshaft timing incorrect | Refer to engine manufacturers manual and replace worn parts |
| Worn engine piston rings or liners (blowby) | Refer to engine manufacturers manual and repair engine as required |
| Internal engine problem (valves, pistons) | Refer to engine manufacturers manual and repair engine as required |
| Dirt caked on compressor wheel and/or diffuser vanes | Clean using a Non-Caustic cleaner and soft brush. Find and correct source of unfiltered air and change engine oil and oil filter |
| Damaged turbocharger | Analyze failed turbocharger, find and correct cause of failure, overhaul or replace turbocharger as required |
Excessive engine oil usage
| Possible Problems |
Solutions |
| Clogged air filter element | Replace elements according to engine manufacturers recommendations |
| Obstructed air intake duct to turbo compressor | Remove obstruction or replace damaged parts as required |
| Air leak in duct from compressor to intake manifold | Correct leak by replacing seals or tightening fasteners as required |
| Air leak at intake manifold to engine joint | Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
| Obstruction in exhaust manifold | Refer to engine manufacturers manual and remove obstruction |
| Obstructed turbocharger oil drain line | Remove obstruction or replace line as required |
| Obstructed engine crankcase vent | Refer to engine manufacturers manual, clear obstruction |
| Turbocharger center housing sludged or coked | Change engine oil and oil filter, overhaul or replace turbo as required |
| Worn engine piston rings or liners (blowby) | Refer to engine manufacturers manual and repair engine as required |
| Internal engine problem (valves, pistons) | Refer to engine manufacturers manual and repair engine as required |
| Dirt caked on compressor wheel and/or diffuser vanes | Clean using a Non-Caustic cleaner and soft brush. Find and correct source of unfiltered air and change engine oil and oil filter |
| Damaged turbocharger | Analyze failed turbocharger, find and correct cause of failure, overhaul or replace turbocharger as required |
Blue exhaust smoke
| Possible Problems |
Solutions |
| Clogged air filter element | Replace elements according to engine manufacturers recommendations |
| Obstructed air intake duct to turbo compressor | Remove obstruction or replace damaged parts as required |
| Air leak in duct from compressor to intake manifold | Correct leak by replacing seals or tightening fasteners as required |
| Air leak at intake manifold to engine joint | Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
| Obstruction in exhaust manifold | Refer to engine manufacturers manual and remove obstruction |
| Obstructed turbocharger oil drain line | Remove obstruction or replace line as required |
| Obstructed engine crankcase vent | Refer to engine manufacturers manual, clear obstruction |
| Turbocharger center housing sludged or coked | Change engine oil and oil filter, overhaul or replace turbo as required |
| Worn engine piston rings or liners (blowby) | Refer to engine manufacturers manual and repair engine as required |
| Internal engine problem (valves, pistons) | Refer to engine manufacturers manual and repair engine as required |
| Dirt caked on compressor wheel and/or diffuser vanes | Clean using a Non-Caustic cleaner and soft brush. Find and correct source of unfiltered air and change engine oil and oil filter |
| Damaged turbocharger | Analyze failed turbocharger, find and correct cause of failure, overhaul or replace turbocharger as required |
Turbocharger noisy
| Possible Problems |
Solutions |
| Obstructed air intake duct to turbo compressor | Remove obstruction or replace damaged parts as required |
| Obstructed air outlet duct from compressor to intake manifold | Remove obstruction or replace damaged parts as required |
| Air leak in duct from air cleaner to compressor | Correct leak by replacing seals or tightening fasteners as required |
| Air leak in duct from compressor to intake manifold | Correct leak by replacing seals or tightening fasteners as required |
| Air leak at intake manifold to engine joint | Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
| Obstruction in exhaust manifold | Refer to engine manufacturers manual and remove obstruction |
| Gas leak in exhaust manifold to engine joint | Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
| Gas leak in turbine inlet to exhaust manifold joint | Replace gaskets or tighten fasteners as required |
| Gas leak in ducting after the turbine outlet | Refer to engine manufacturers manual and repair leak |
| Dirt caked on compressor wheel and/or diffuser vanes | Clean using a Non-Caustic cleaner and soft brush. Find and correct source of unfiltered air and change engine oil and oil filter |
| Damaged turbocharger | Analyze failed turbocharger, find and correct cause of failure, overhaul or replace turbocharger as required |
Cyclic sound from turbo
| Possible Problems |
Solutions |
| Obstructed air intake duct to turbo compressor | Remove obstruction or replace damaged parts as required |
| Internal engine problem (valves, pistons) | Refer to engine manufacturers manual and repair engine as required |
| Dirt caked on compressor wheel and/or diffuser vanes | Clean using a Non-Caustic cleaner and soft brush. Find and correct source of unfiltered air and change engine oil and oil filter |
| Damaged turbocharger | Analyze failed turbocharger, find and correct cause of failure, overhaul or replace turbocharger as required |
Oil leak from compressor seal
| Possible Problems |
Solutions |
| Clogged air filter element | Replace elements according to engine manufacturers recommendations |
| Obstructed air intake duct to turbo compressor | Remove obstruction or replace damaged parts as required |
| Obstruction in exhaust manifold | Refer to engine manufacturers manual and remove obstruction |
| Obstruction in muffler or exhaust stack | Remove obstruction or replace faulty components as required |
| Gas leak in exhaust manifold to engine joint | Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
| Gas leak in turbine inlet to exhaust manifold joint | Replace gaskets or tighten fasteners as required |
| Obstructed turbocharger oil drain line | Remove obstruction or replace line as required |
| Obstructed engine crankcase vent | Refer to engine manufacturers manual, clear obstruction |
| Turbocharger center housing sludged or coked | Change engine oil and oil filter, overhaul or replace turbo as required |
| Worn engine piston rings or liners (blowby) | Refer to engine manufacturers manual and repair engine as required |
| Internal engine problem (valves, pistons) | Refer to engine manufacturers manual and repair engine as required |
| Dirt caked on compressor wheel and/or diffuser vanes | Clean using a Non-Caustic cleaner and soft brush. Find and correct source of unfiltered air and change engine oil and oil filter |
| Damaged turbocharger | Analyze failed turbocharger, find and correct cause of failure, overhaul or replace turbocharger as required |
Oil leak from turbine seal
| Possible Problems |
Solutions |
| Obstructed turbocharger oil drain line | Remove obstruction or replace line as required |
| Obstructed engine crankcase vent | Refer to engine manufacturers manual, clear obstruction |
| Turbocharger center housing sludged or coked | Change engine oil and oil filter, overhaul or replace turbo as required |
| Worn engine piston rings or liners (blowby) | Refer to engine manufacturers manual and repair engine as required |
| Internal engine problem (valves, pistons) | Refer to engine manufacturers manual and repair engine as required |
| Dirt caked on compressor wheel and/or diffuser vanes | Clean using a Non-Caustic cleaner and soft brush. Find and correct source of unfiltered air and change engine oil and oil filter |
| Damaged turbocharger | Analyze failed turbocharger, find and correct cause of failure, overhaul or replace turbocharger as required |
