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Having trouble with a Renault traffic 1.9dci 100. A few minutes after start up grey smoke starts appearing from the exhaust that gets worse the warmer the engine gets. I removed the inlet that comes from the air box at the turbo end and the smoke stopped. Checked intercooler ipes and there is some oil inside the pipes. Any ideas?
 

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Super Moderator
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13,565 Posts
Changed the Air Filter Lately?
On Trafics, a soggy air filter causes this.
Sometimes the cheap ones disintegrate & block the pipe.
HTH
 

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Oil in the intercooler pipework most likely has come from the turbo (bad seals?). Can't yet see why this would disappear when an air supply pipe is removed unless there is a blockage somewhere as Nottnoc suggests.
 

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Super Moderator Technical Supremo Platinum Member
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I'd agree.
If air inlet is restricted, turbo suction takes air from where it can.... crank via engine breather for instance.
And if so, drags oil with it.

This may be a case where the breather valve has failed or could be that air filter or inlet pipes are blocked.
Get someone to rev it while you look underbonnet..... do any of the inlet pipes try to collapse or actually do so.
 

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Super fantastic Mod Technical Supremo Nice Guy
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Thats a sign of turbo failure, just around the corner..
How much oil has it used,, if more than a litre, dont keep on driving it....
You will have a runaway engine on your hands, and unless you are able to stall the engine, you will also need an engine.....
Whatever you do, DONT clean the egr until turbo is sorted...
 
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