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Possible causes |
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Solution |
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dirty air cleaner element |
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Cleanor replace filter element |
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plugged crankcase breathers |
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Clear obstruction per manufacturer's manual |
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air cleaner element missing,leaking, or loose connections to turbo |
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Replace repair or reconnect air cleaner element per manufacturer's manual |
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collapsed or restricted air pipe-turbo to inlet manifold |
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inspect pipe for damaged or obstruction, replace or repair |
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restricted or damaged crossover pipe- turbo to inlet manifoild |
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inspect pipe for damaged or obstruction, replace or repair |
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foreign object between cleaner and turbochareger |
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inspect air intake piping, remove foreign object |
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foreign object in exhaust system (check engine) |
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inspect exhaust piping only when engine is not running and cold, remove foreign object |
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turbocharger flanges, clamp or bolts loose |
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inspect all connecting hardware for damage, ensure tight fits per installation instructions |
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inlet manifold cracked, gaskets, loose or missing, connections loose |
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remove and inspect inlet manifold for damage to casting and gaskets, replace if needed |
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exhaust manifold cracked, burned ,gasket loose, blown or missing |
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remove exhauste manifold only when engine is cold and not running and inspect for damage to castings and gasket, replace if needed. |
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restrict exhaust system |
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inspect exhaust system only when engine is cold ,not running,remove insturction |
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oil tag at start-up |
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inspect lubrication system lines, filters and oil for obstruction, remove obstruction |
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insufficient lubrication |
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inspect lubrication system lines, filters and oil for obstruction, remove obstruction |
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lurbircating oil contaminated with dirt or other material |
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replace all filters and lubricatting oil with new per manufacturer's manual |
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improper lubricating oil type used |
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replace lubricating oil with correct grade |
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restricted oil feed line |
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remove and inspect oil line ,remove obstruction |
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restricted oil drain line |
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remove and inspect oil line ,remove obstruction |
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turbine housing damaged or restricted |
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remove turbine housing, inspect for cracks or cracks or wear, replace if needed |
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turbocharger seal leakage |
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inspect for proper oil feed/drain line installation, contact garrett districutor |
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worn journal bearings |
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Contact a garrett performance districbutor for garrett master distributor |
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excessive dirt build-up behind turbine wheel |
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inspect air claener element and intake piping for damage or leaks ,replace if needed. Clean compressor wheel and housing |
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excessive carbon build-up behind compressor housing |
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inspect crankcase ventilation |
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too fast acceleration at initial start |
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decrease acceleration at initial start |
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too little warm-up time |
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extend warm-up period |
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fuel pump malfunction |
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refer to engine manufacturere's manual and replace if needed |
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worn or damaged injectiors |
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inspect injectors for damage and replace if needed |
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valve timing |
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refer to engine manufacturere's manual and replace if needed |
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burned valves |
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refer to engine manufacturere's manual and replace if needed |
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worn piston rings |
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refer to engine manufacturere's manual and replace if needed |
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burned piston |
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refer to engine manufacturere's manual and replace if needed |
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leaking oil feed line |
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remove and inspect oil line ,remove obstruction |
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excessive engine pre-oil |
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refer to engine manufacturere's manual and replace if needed |
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excessive engine idle |
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refer to engine manufacturere's manual and replace if needed |
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coked or sludged center housing |
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contact a garrett performance districbutor for garrett master distributor |
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oil pump malfunction |
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refer to engine manufacturer's manual and replace if needed |
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oil filter plugged |
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refer to engine manufacturer's manual and replace if needed |
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oil bath cleaner: air inlet screen restricted/ dirty air cleaner |
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replace air inlet screen |
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oil bath air cleaner: oil pull-over /oil viscosity too low or high |
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replace lubricationg oil with correct garde |
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boost control malfunction: wastegate |
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inspect for damage ,leaks or obstructions, replace or repari if needed |
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boost control malfunction: vnt |
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contact a garret performance districbutor or garret master distrubitor |
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boost control manfunction: engine management system |
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refer to manufacturer's manual and adjust as needed |
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Engine Lacks power |
Black smoke |
Excessive oil consumption |
Blue smoke |
Noise |
Excessive oil compressor end |
Excessive oil turbine end |
Drag or bind in rotation assembly |
Excessive rotation assembly play |
Damaged compressor wheel |
Damaged Turbine wheel |
