This query is about my 03 Peugeot Expert 2.0HDi van but the question is applicable to all turbo intercooled vehicles so hope it's acceptable ;D
When hard accelerating, and turbo kicks in, blue smoke can be seen mirrors Oil level also drops, albeit slowly, so I assumed the turbo oil seal was failing and oil was being sucked in when on boost. However the engine has done 150,000 miles so I suppose some oil useage, due to "wear and tear", could also be a valid reason.
Reading yesterday on another forum somebody had similar problem and changing for a expensive reconditioned turbo didn't cure the problem of blue smoke. One of the replies stated that if turbo seals had failed again then there would be white, not blue smoke. They said more likely was the intercooler had a build up of oily gunge inside and when on boost that was being sucked into the engine, getting burnt and causing the blue smoke. Several other people said similar thing and cleaning the intercooler make a difference to power as well so worth doing anyway. Flushing / sloshing intercooler with petrol seems to be one of the most cost effective method.
I intend cleaning the intercooler as already off the vehicle due to needing clutch change.
Question therefore is what do other people think ? Could the blue smoke be a failing turbo oil seal or would that cause white smoke ?
Cheers.
Paul H
When hard accelerating, and turbo kicks in, blue smoke can be seen mirrors Oil level also drops, albeit slowly, so I assumed the turbo oil seal was failing and oil was being sucked in when on boost. However the engine has done 150,000 miles so I suppose some oil useage, due to "wear and tear", could also be a valid reason.
Reading yesterday on another forum somebody had similar problem and changing for a expensive reconditioned turbo didn't cure the problem of blue smoke. One of the replies stated that if turbo seals had failed again then there would be white, not blue smoke. They said more likely was the intercooler had a build up of oily gunge inside and when on boost that was being sucked into the engine, getting burnt and causing the blue smoke. Several other people said similar thing and cleaning the intercooler make a difference to power as well so worth doing anyway. Flushing / sloshing intercooler with petrol seems to be one of the most cost effective method.
I intend cleaning the intercooler as already off the vehicle due to needing clutch change.
Question therefore is what do other people think ? Could the blue smoke be a failing turbo oil seal or would that cause white smoke ?
Cheers.
Paul H