WebJan 17, 2024 · 4,676 Posts. #4 · Jan 16, 2024. The classic diagnosis of worn valve stem seals is to check what happens to the exhaust smoke on idle compared to under throttle. If you see *no* blue smoke while driving, but it starts blowing blue when you come to a stop and idle, that's the seals. The explanation is that engine vacuum is low under throttle ... WebThere are a number of possible causes for blue smoke coming from your engine – and that is why we’ve produced a 90-second animation to show you the most likely reasons for the problem. This overview pinpoints the … flinders nsw to wollongong

Puff Of White Smoke On Start Up TDIClub Forums

WebBlue smoke on start up in the morning . The car seems to drive completely fine with no exhaust fumes what so ever, but when I fire up the car in the morning I get a puff of blue smoke out the exhaust then it clears straight away.. is this most likely a valve seal issue? WebMay 8, 2008 · When I got the car running at first, I didn't notice any blue smoke coming from the exhaust during start up. Now after the car sits for a day or two, I get a visible cloud of blue smoke at start up for about 5 seconds, then it's gone. The car runs great and doesn't smoke the rest of the day while it is out. WebFeb 18, 2016 · You'll probably find it won't always do it. Mine puffs on startup most times, but sometimes doesn't do it even maybe for 2 or 3 starts. I think it depends on the position of everything when the engine switches off, eg if you have some oil getting past on a given valve, then if the engine stops with this valve shut, it can't dribble down into ... flinders nt regional training hub