Date: Mon, 18 Jun 2007 14:15:11 +0100 From: "Véritable Rosbif" <no.spambots.tanospamnity.uz> Subject: Anyone diagnose this?
Saab 9-5 [2.3-litre petrol] low-pressure turbo. 110,000 miles, replacement turbo at 70,000. It has started blowing off blue-ish smoke from the exhaust when changing up 2>3, 3>4 and 3>5. It's not worse when driving 'hard', and happens on even the gentlest of changes. No difference if the engine is cold or hot. As the revs drop for the change, there's a small billow of smoke. It doesn't do it if you by-pass 3rd gear, and it doesn't do when changing down, as the revs increase. Any ideas of its cause?