Question about 2003 Renault 181
Renault Clio 1.5 dci 2002, blowing black smoke, and lossing power whilst driving. Suddenly goes from 70 down to 50
(Starts Ok and tick over is Ok. Renault and Bosch havent found any Problems or Faulty feedback from there computers.
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Posted on Jan 02, 2017
SOURCE: renault clio 1-5 dci (2002)
It's very likely a valve stem seal that has split. This will allow oil into the cylinder from the crank gallery.
Off with it's head! I'm afraid.
The only other thing it can be is overfueling - but then it will be sputtering and lagging on acceleration.
You can check which cylinder is affected by removing the plugs and looking for the oily one. They will all need replacing really as it's false economy to do just 1. The seals are cheap. I would get a new cambelt fitted at the same time - as it has to come off anyway.
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Posted on Jun 17, 2008
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