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Possible Problems
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Solutions |
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Clogged air filter element |
Replace elements according to engine manufacturers recommendations |
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Obstructed air intake duct to turbo compressor |
Remove obstruction or replace damaged parts as required |
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Obstructed air outlet duct from compressor to intake manifold |
Remove obstruction or replace damaged parts as required |
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Obstructed intake manifold |
Correct leak by replacing seals or tightening fasteners as required |
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Air leak in duct from air cleaner to compressor |
Correct leak by replacing seals or tightening fasteners as required |
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Air leak in duct from compressor to intake manifold |
Correct leak by replacing seals or tightening fasteners as required |
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Air leak at intake manifold to engine joint |
Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
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Obstruction in exhaust manifold |
Refer to engine manufacturers manual and remove obstruction |
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Obstruction in muffler or exhaust stack |
Remove obstruction or replace faulty components as required |
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Gas leak in exhaust manifold to engine joint |
Refer to engine manufacturers manual and replace gaskets or tighten fasteners as required |
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Gas leak in turbine inlet to exhaust manifold joint |
Replace gaskets or tighten fasteners as required |
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Gas leak in ducting after the turbine outlet |
Refer to engine manufacturers manual and repair leak |
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Obstructed turbocharger oil drain line |
Remove obstruction or replace line as required |
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Obstructed engine crankcase vent |
Refer to engine manufacturers manual, clear obstruction |
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Turbocharger center housing sludged or coked |
Change engine oil and oil filter, overhaul or replace turbo as required |
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Fuel injection pump or fuel injectors incorrectly adjusted |
Refer to engine manufacturers manual - replace or adjust faulty component(s) as required |
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Engine camshaft timing incorrect |
Refer to engine manufacturers manual and replace worn parts |
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Worn engine piston rings or liners (blowby) |
Refer to engine manufacturers manual and repair engine as required |
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Internal engine problem (valves, pistons) |
Refer to engine manufacturers manual and repair engine as required |
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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 |
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Damaged turbocharger |
Analyze failed turbocharger, find and correct cause of failure, overhaul or replace turbocharger as required |