Troubleshooting Garrett® Turbochargers
Contents
1. Troubleshooting Garrett Turbochargers Providing Answers Possible problem wth your turbo Find the symptom and determine probable causes with the Garrett Turbochargers Troubleshooting Guide Garrett by Honeywell Nearly all turbocharger related problems are the result of a handful of causes Knowing how to recognize the symptoms of these issues early and link them with causes will help you save down time and money The chart below outlines the probable causes and noticeable conditions of the most common turbocharger maladies as well as what you can do to solve them By using this chart most turbocharger problems can be easily identified and rectified However if a problem falls outside of your comfort level of service contact a Garrett Performance Distributor or a Garrett Master Distributor for assistance E o g b a amp ag E Probable Cause by Honeywell Ta Y a g wo a k CE O n A Probable C oe 7 Turbocharger S e amp amp ot A Probable Cause Troubleshooting 3 o e O a N a S e CO S e amp G amp 3 a a y k 3 T Es e e a a ee 4 4 amp 3 ao 2 gt gt 2 4 amp Solutions Dirty air cleaner element e 4 Clean or replaced filter element Clear obstruction per manufacturer s manual Plugged crankcase breathers Air cleaner element missing leaking or loose connections to turbo ollapsed or rest2. emove obstruction Contact a Garrett Perfromance Distributor or Garrett Master Distributor Refer to engine manufacturers manual and replace if needed Burned pistons Leaking oil line Excessive engine pre oil u Excessive engine idle i Coked or sludged center housing O onpump matunton m Oil filter plugged T Oil bath air cleaner air inlet screen restricted dirty air cleaner Dil bath air cleaner oil pull over oil viscocity too low or high Boost control malfunction wastegate Refer to engine manufacturers manual and replace if needed ae i i Replace air inlet screen RPS Slo Contact a Garrett Performance Distributor of a Garrett Master distributor Inspect for damage leaks or obstructions replace or repair if needed Refer to manufacturers manual and adjust as needed i A r re it www TurboByGarrett com by Honeywell Boost control malfunction VNT Boost control malfunction engine management system L r
3. ensure tight fits per installation instructions Remove and inspect inlet manifold for damage to castings and gaskets replace if needed Remove exhaust manifold ONLY when engine is cold and NOT running and inspect for damage to castings and gaskets replace if needed Inspect exhaust system ONLY when engine is cold NOT running remove obstruction Inspect lubrication system lines filters and oil for obstruction remove obstruction sd Inspect lubrication system lines filters and oil for obstruction remove obstruction a Replace lubricating oil with correct grade C Remove and inspect oil line remove obstruction i a Remove and inspect oil line remove obstruction Remove turbine housing inspect for cracks or wear replace if needed Contact a Garrett Perfromance Distributor or Garrett Master Distributor Replace all filters and lubricating oil with new per manufacterer s manual Inspect air cleaner element and intake piping for damage or leaks replace if needed Clean compressor wheel and housing Inspect crankcase ventilation system Decrease acceleration at initial start Extend warm up period Refer to engine manufacturers manual and replace if needed Inspect Injectors for damage and replace If needed Refer to engine manufacturers manual and replace if needed Remove and inspect oil line r
4. ricted air pipe before turbocharger estricted or damaged cross over pipe turbo to inlet manifold Foreign object between cleaner and turbocharger Foreign object in exhaust system from engine check engine Turbocharger flanges clamp or bolts loose nlet manifold cracked gaskets loose or missing connections loose Exhaust manifold cracked burned gasket loose blown or missing Restricted exhaust system i i Oillagatstart up I insufficient lubrication 1 1 Lubricating oil contaminated with dirt other material L Improper lubricating oil type used Oo Restricted oil feed line O Restricted oil drain line Turbine housing damaged or restricted Turbocharger seal leakage a im Worn jounal bearing Excessive dirt build up behind turbine wheel Excessive carbon build up on compressor housing Too fast acceleration at initial start Too little warm up time Fuel pump malfunction Worn or damaged injectors Valve timing Burned valves Worn piston rings Replace repair or reconnect air clearner element per manufacturer s manuall Inspect pipe for damage or obstructions replace or repair Inspect pipe for damage or obstructions replace or repair Inspect air intake piping remove foreign object Inspect exhaust piping ONLY when engine is NOT running and cold remove foreign object Inspect all connecting hardware for damage
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