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Rough Idle, Smoke & Vanishing Coolant
Posted by Kelly M (more from Kelly M) on Mon, 31 Aug 2009 14:18:32
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2000 9-5 Aero, 140k miles
I've been away for the boards for a while, and I hope you can help me diagnose what's happening here. I've searched around, found a lot about PCV, turbo failure etc, but my symptoms seem slightly different. Here's the story:
Every few days on a cold start, it fires up easily, but immediately goes into a stuttering, rough idle. It sounds like it's choking. Then I get some white smoke, and continued rough idle. After a few seconds, it seems to cough out a single cloud of white smoke, and the idle goes right back to normal... and all of this takes usually only a few seconds. After that, runs perfectly, no other power/turbo symptoms under load.
I've also been seeing intermittent fill coolant messages, which I obey. For the most part, it's just needed a top off. Seems like a steady, very slow drain.
So what does it all mean? I know it's one of a few things, but where should I start? Thanks as always.
Kelly M
posted by 76.176.24...
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