[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-323420-105":59,"doc-detail-323420-en":134},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":127,"head_meta":129,"extra_data":131,"updated_unix":133},105,"en","turbo-failure-how-a-blocked-dpf-can-cause-turbocharger-failure-prevention-and-troubleshooting","Turbo Failure - How a Blocked DPF Can Cause Turbocharger Failure - Prevention and Troubleshooting","","Blocked diesel particulate filters (DPFs) can restrict exhaust flow, raising back pressure and exhaust temperatures within the turbine housing. Elevated heat can reduce turbo efficiency, trigger oil leaks, carbonise oil inside the CHRA, and cause exhaust gas leaks. The document explains visible symptoms—such as discolouration in CHRA, carbon build-up around piston ring grooves, and sooting in VNT lever arm or wastegate mechanisms—and outlines prevention steps, including confirming DPF blockage, using specialist advice, replacing low-quality DPFs, and replacing the turbo core assembly when required.",{"@graph":69,"@context":126},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/turbo-failure-how-a-blocked-dpf-can-cause-turbocharger-failure-prevention-and-troubleshooting/323420/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/turbo-failure-how-a-blocked-dpf-can-cause-turbocharger-failure-prevention-and-troubleshooting/323420.png","ImageObject",300,407,{"name":92,"@type":93},"Aurelia","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-12","2026-09-21",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118,122],{"name":109,"@type":110,"acceptedAnswer":111},"How does a blocked DPF lead to turbocharger failure?","Question",{"text":112,"@type":113},"A blocked DPF prevents exhaust gas from flowing at the required rate, increasing back pressure and raising exhaust temperatures in the turbine housing. These conditions can cause efficiency problems, oil leaks, carbonisation in the CHRA, and exhaust gas leaks from the turbo.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What are the common regeneration methods for clearing a DPF blockage?",{"text":117,"@type":113},"Active regeneration removes soot by adding fuel after combustion to raise exhaust temperatures and burn the soot. Passive regeneration occurs automatically during motorway-type driving when exhaust temperatures are naturally high.",{"name":119,"@type":110,"acceptedAnswer":120},"What signs help identify turbo problems caused by a DPF issue?",{"text":121,"@type":113},"Look for discolouration within the CHRA indicating heat transfer, carbon build-up in the turbine-side piston ring groove, oil leaks into the compressor housing, and carbon/soot deposits that restrict VNT or wastegate mechanisms. These can also be associated with turbo lag or over-boost.",{"name":123,"@type":110,"acceptedAnswer":124},"What steps can prevent turbo failures linked to DPF problems?",{"text":125,"@type":113},"First determine whether the DPF is blocked and seek DPF specialist advice. Use a high-quality DPF replacement, replace the turbocharger core assembly when the DPF is blocked to prevent oil leaks, and check the actuator achieves full movement range, especially for electronic systems. Also account for the fact that DPFs can take years to block and failures can happen quickly once blocked.","https://schema.org",{"og:url":83,"og:type":128,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":130,"canonical":83},"index,follow",{"doc_id":132,"site_id":62},323420,1790436231,{"code":4,"msg":5,"data":135},{"doc_id":132,"user_id":136,"nickname":92,"user_avatar":137,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":138,"file_id":139,"file_url":140,"file_type":141,"file_size":142,"view_count":29,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":14,"language":143,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":144,"faqs":145,"seo_title":146,"seo_description":67,"update_tm":147,"read_time":24},1099514068365,"https://ap-avatar.wpscdn.com/avatar/10000253d8d9f28188e?_k=1776742907772140068","PRECISION ENGINEERED TURBOCHARGERS & PA RTS  \n\n| DP F DA MAG E |\n| --- |\n| |\n\n\n| How can the Diesel Particulate Filter cause Turbocharger failure? |  | There are many articles and technical documents relating to how a faulty turbo can lead to DPF damage, however, the DPF is actually responsible for more turbo related failures than you might think. Here we explore what effect a blocked DPF can have on a turbocharger.\u003Cbr>DPF’s (Diesel Particulate Filters) were first introduced in January 2005 with the Euro 4 emission standard, where diesel particulate levels were reduced to extremely low levels to reduce the allowable amount of particulate matter (PM) released into the atmosphere. Reducing the size of PM from the combustion process to this level was not technically possible, so this meant all diesel vehicles after September 2009 were fitted with a filter to capture soot and other harmful particles, preventing them entering the atmosphere. A DPF can remove around 85% of the particulates from the exhaust gas.\u003Cbr>A blocked DPF will not work correctly, to clear this blockage there are two types of regeneration which are commonly used to remove the build-up of soot. Newer vehicles engage active regeneration, which is the process of removing the accumulated soot from the filter by adding fuel post combustion to increase exhaust gas temperatures and burn off the soot, providing a temporary solution. Passive regeneration takes place automatically on motorway-type runs when the exhaust temperature is high. Many manufacturers have moved to using active regeneration as many motorists do not often drive prolonged distances at motorway speeds to clear the DPF, constant short distances are not good for the turbo or exhaust system. |\n| --- | --- | --- |\n| So, what happens | A blocked DPF prevents exhaust gas passing through the exhaust system at the required rate. As a result back |  |\n| to the turbo when | pressure and exhaust gas temperatures increase within the turbine housing. |  |\n| a DPF is blocked? | Increased exhaust gas temperature and back pressure can affect the turbocharger in a number of ways, including problems with efficiencies, oil leaks, carbonisation of oil within the turbo and exhaust gas leaks from the turbo. |  |\n\nHow to spot problems from DPF’s  \nA blocked DPF prevents exhaust gas passing through the exhaust system at the required rate. As a result back pressure and exhaust gas temperatures increase within the turbine housing.  \nIncreased exhaust gas temperature and back pressure can affect the turbocharger in a number of ways, including problems with efficiencies, oil leaks, carbonisation of oil within the turbo and exhaust gas leaks from the turbo.  \n Discolouration of parts within the core assembly (CHRA) usually with evidence that the heat is transferring through the CHRA from the turbine side. This excessive temperature within the CHRA is caused by back pressure forcing the exhaust gas through the piston ring seals and into the CHRA. The high temperature exhaust gas can prevent efficient oil cooling within the CHRA and even carbonise the oil, restricting oil feeds and causing wear to the bearing systems. This type of failure can often be mistaken as a lack of lubrication or contaminated oil.  \n Carbon build-up in the turbine side piston ring groove caused by the increased exhaust gas temperatures.  \n Oil leaks into the compressor housing can be seen as a consequence of exhaust gas forcing its way into the CHRA from the turbine side and forcing oil through the oil seal on the compressor side.  \n A blocked DPF can force exhaust gas through the smallest of gaps, including the clearances in the bearing housing VNT lever arm and turbine housing waste gate mechanisms. If this occurs, carbon build up in these mechanisms can restrict movement of the levers affecting performance of the turbo. In some cases soot build up can be seen on the back face of the seal plate where the exhaust gas has been forced through.  \n Turbine wh","cbCaivaigVTGNo6M","https://ap.wps.com/l/cbCaivaigVTGNo6M","pdf",704886,"English","# How can the Diesel Particulate Filter cause Turbocharger failure?\n## Regeneration types for clearing a blocked DPF\n# What happens when a DPF is blocked?\n# How to spot problems from DPF’s\n# How can you prevent these failures from occurring?","[{\"question\":\"How does a blocked DPF lead to turbocharger failure?\",\"answer\":\"A blocked DPF prevents exhaust gas from flowing at the required rate, increasing back pressure and raising exhaust temperatures in the turbine housing. These conditions can cause efficiency problems, oil leaks, carbonisation in the CHRA, and exhaust gas leaks from the turbo.\"},{\"question\":\"What are the common regeneration methods for clearing a DPF blockage?\",\"answer\":\"Active regeneration removes soot by adding fuel after combustion to raise exhaust temperatures and burn the soot. Passive regeneration occurs automatically during motorway-type driving when exhaust temperatures are naturally high.\"},{\"question\":\"What signs help identify turbo problems caused by a DPF issue?\",\"answer\":\"Look for discolouration within the CHRA indicating heat transfer, carbon build-up in the turbine-side piston ring groove, oil leaks into the compressor housing, and carbon/soot deposits that restrict VNT or wastegate mechanisms. These can also be associated with turbo lag or over-boost.\"},{\"question\":\"What steps can prevent turbo failures linked to DPF problems?\",\"answer\":\"First determine whether the DPF is blocked and seek DPF specialist advice. Use a high-quality DPF replacement, replace the turbocharger core assembly when the DPF is blocked to prevent oil leaks, and check the actuator achieves full movement range, especially for electronic systems. Also account for the fact that DPFs can take years to block and failures can happen quickly once blocked.\"}]","Turbo Failure - How a Blocked DPF Can Cause Turbocharger Failure - Prevention and Troubleshooting | PDF",1789965173]