Turbocharger Trouble Shooting
To trouble shoot following symptoms, refer to appropriate number under PROBABLE CAUSES.
SYMPTOM - TURBOCHARGING TROUBLE SHOOTING
| Symptom | Possible Causes |
|---|---|
| Engine Lacks Power | Clogged air filter element |
| Engine Lacks Power | Obstructed air outlet duct from compressor to intake manifold |
| Engine Lacks Power | Obstructed intake manifold |
| Engine Lacks Power | Air leak in duct from compressor to intake manifold |
| Engine Lacks Power | Air leak at intake manifold-to-engine joint |
| Engine Lacks Power | Obstruction in exhaust manifold |
| Engine Lacks Power | Obstruction in exhaust system |
| Engine Lacks Power | Gas leak in exhaust manifold-to-engine joint |
| Engine Lacks Power | Gas leak in turbine inlet-to-exhaust manifold joint |
| Engine Lacks Power | Engine camshaft timing incorrect |
| Engine Lacks Power | Worn engine piston rings or liners (blow-by) |
| Engine Lacks Power | Internal engine problems (valves, pistons) |
| Engine Lacks Power | Dirt caked on compressor wheel and/or diffused vanes |
| Engine Lacks Power | Damaged turbocharger |
| Engine Lacks Power | Wastegate stuck open |
| Black Smoke | Obstructed air intake duct to turbo compressor |
| Black Smoke | Obstructed air outlet duct from compressor to intake manifold |
| Black Smoke | Obstructed intake manifold |
| Black Smoke | Air leak in duct from compressor to intake manifold |
| Black Smoke | Air leak at intake manifold-to-engine joint |
| Black Smoke | Obstruction in exhaust manifold |
| Black Smoke | Obstruction in exhaust system |
| Black Smoke | Gas leak in exhaust manifold-to-engine joint |
| Black Smoke | Gas leak in turbine inlet-to-exhaust manifold joint |
| Black Smoke | Engine camshaft timing incorrect |
| Black Smoke | Worn engine piston rings or liners (blow-by) |
| Black Smoke | Internal engine problems (valves, pistons) |
| Black Smoke | Dirt caked on compressor wheel and/or diffused vanes |
| Black Smoke | Damaged turbocharger |
| Blue Smoke | Obstructed air intake duct to turbo compressor |
| Blue Smoke | Air leak in duct from compressor to intake manifold |
| Blue Smoke | Air leak at intake manifold-to-engine joint |
| Blue Smoke | Obstruction in exhaust manifold |
| Blue Smoke | Obstructed turbocharger oil drain line |
| Blue Smoke | Obstructed engine crankcase ventilation |
| Blue Smoke | Turbocharger center housing sludged or coked |
| Blue Smoke | Worn engine piston rings or liners (blow-by) |
| Blue Smoke | Internal engine problems (valves, pistons) |
| Blue Smoke | Dirt caked on compressor wheel and/or diffused vanes |
| Blue Smoke | Damaged turbocharger |
| Excessive Oil Consumption | Obstructed air intake duct to turbo compressor |
| Excessive Oil Consumption | Air leak in duct from compressor to intake manifold |
| Excessive Oil Consumption | Air leak at intake manifold-to-engine joint |
| Excessive Oil Consumption | Obstruction in exhaust manifold |
| Excessive Oil Consumption | Obstructed turbocharger oil drain line |
| Excessive Oil Consumption | Obstructed engine crankcase ventilation |
| Excessive Oil Consumption | Turbocharger center housing sludged or coked |
| Excessive Oil Consumption | Worn engine piston rings or liners (blow-by) |
| Excessive Oil Consumption | Internal engine problems (valves, pistons) |
| Excessive Oil Consumption | Dirt caked on compressor wheel and/or diffused vanes |
| Excessive Oil Consumption | Damaged turbocharger |
| Noisy Operation | Clogged air filter element |
| Noisy Operation | Obstructed air intake duct to turbo compressor |
| Noisy Operation | Obstructed air outlet duct from compressor to intake manifold |
| Noisy Operation | Obstructed intake manifold |
| Noisy Operation | Air leak in duct from air cleaner to compressor |
| Noisy Operation | Air leak in duct from compressor to intake manifold |
| Noisy Operation | Air leak at intake manifold-to-engine joint |
| Noisy Operation | Obstruction in exhaust manifold |
| Noisy Operation | Gas leak in turbine inlet-to-exhaust manifold joint |
| Noisy Operation | Gas leak in ducts after turbine outlet |
| Noisy Operation | Dirt caked on compressor wheel and/or diffused vanes |
| Noisy Operation | Damaged turbocharger |
| Cyclic Sound From Turbocharger | Obstructed air intake duct to turbo compressor |
| Cyclic Sound From Turbocharger | Dirt caked on compressor wheel and/or diffused vanes |
| Cyclic Sound From Turbocharger | Damaged turbocharger |
| Oil Leak At Turbine Seal | Obstructed turbocharger oil drain line |
| Oil Leak At Turbine Seal | Obstructed engine crankcase ventilation |
| Oil Leak At Turbine Seal | Turbocharger center housing sludged or coked |
| Oil Leak At Turbine Seal | Worn engine piston rings or liners (blow-by) |
| Oil Leak At Turbine Seal | Internal engine problems (valves, pistons) |
| Oil Leak At Turbine Seal | Dirt caked on compressor wheel and/or diffused vanes |
| Oil Leak At Turbine Seal | Damaged turbocharger |
| Oil Leak At Compressor Seal | Obstructed air intake duct to turbo compressor |
| Oil Leak At Compressor Seal | Obstruction in exhaust manifold |
| Oil Leak At Compressor Seal | Obstruction in exhaust system |
| Oil Leak At Compressor Seal | Gas leak in exhaust manifold-to-engine joint |
| Oil Leak At Compressor Seal | Gas leak in turbine inlet-to-exhaust manifold joint |
| Oil Leak At Compressor Seal | Obstructed turbocharger oil drain line |
| Oil Leak At Compressor Seal | Obstructed engine crankcase ventilation |
| Oil Leak At Compressor Seal | Turbocharger center housing sludged or coked |
| Oil Leak At Compressor Seal | Worn engine piston rings or liners (blow-by) |
| Oil Leak At Compressor Seal | Internal engine problems (valves, pistons) |
| Oil Leak At Compressor Seal | Dirt caked on compressor wheel and/or diffused vanes |
| Oil Leak At Compressor Seal | Damaged turbocharger |