The first indication there was of a worn turbo on my conveyance was a drop of around 15mpg in the economy and an unusual whiff of diesel fumes on tick over. On inspection, I discovered a collection of oil around the turbo. There were no unusual noises, nor was there any discernable drop in performance. Thank you for sharing your knowledge.
This is the absolute best video for diagnosing a bad turbo for diy. I get the impression that the guy making the video has probably forgotten more about engines/cars than most of us will ever know.
Hey buddy thank you for replying my comment I found out that my boost pressure actuator was rusted and doesn’t move when it call for air, What will happen if I drive with bad boost pressure actuator?
The life of the turbocharger will be shortened. The turbo actuator is there to control the waste gate valve and acts as a pressure relief valve that controls the boost output of your turbo, diverting excess exhaust gases away from the turbine wheel. This controls the speed of the turbine, preventing it from over-speeding, and regulating the speed of the compressor. And this helps to protect the turbocharger from unnecessary wear and tear, by limiting the maximum boost pressure of the turbo at a safe level.
Am not exactly sure dear! In some areas, finding turbo repair kit is challenging as spare part shops prefer to have the entire turbo.. instead of the kit!
Thank you for the amazing guide. As a newbie I noticed too late that my turbo had gone bad do you think my engine may have suffered damage from driving with a blown turbo? I drove around 40 miles everyday for a week
Oil leak after lubricating the turbo might not have impact on the turbo, but it will gradually lead to low oil level in the long run! Low oil level will then lead to turbo failure!
Hi I have question and need your advice my 2liter turbocharged engine burning oil while standing or waiting at traffic light oil accumulated and when drive a lot of blue and black smoke comes out and after that while driving faster there is no smoke am confused my car is saab 93 2004 model p.s. have checked the turbo blades are very strong no play as well the axe at all
Have you checked the condition of the valve guide seals? If the turbocharger is not leaking, then the valve guides might be leaky, assuming the piston rings are in good condition.
