blue smoke
blue smoke A friend of mine noticed blue smoke comming out when i got in it alil the other day. Any suggestion to what this might be? I just changed the pcv valve just cause its never been done and there is 50k on her.... Let me know tguys and thanks.
haha i wish i had turbo.... No oil on the ground and the pressure is halfway to 3 quaters. I did notice on my trip to saratoga over the weekend it seemsed a quart low on oil now today i checked again and its fine....
TECH Regular
Joined: Sep 2006
Posts: 427
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From: Ellicott City MD
Well from what it sounds like there is some oil burning probably not to much. As long as your oil pressure is fine and you dont start creating clouds that can hide armys then i would not worry to much about it.
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TECH Regular
Joined: Sep 2006
Posts: 427
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From: Ellicott City MD
trust me man i know how that goes. My father has always told me "you worry to damn much about that car" Ill here the smallest slightest noise one time and i will chase that thing all over the chassis. I know how that worrying thing goes.
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TECH Fanatic
Joined: Aug 2006
Posts: 1,407
Likes: 63
From: Knappa, Oregon
If the blue smoke is at start up, oil could be leaking down through the valve guides while it sits. If blue smoke is coming after it's warmed up, when you romp on it, it could be blowing past the piston rings. But with only 50k on it there shouldn't be either of these issues. Are you sure it wasn't just some carbon burning out?
TECH Regular
Joined: Aug 2005
Posts: 452
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From: Fort Worth,TX
if it smokes on start up then probably your valve seals are tore. But you say it smokes sometimes while driving it might still be your valve seals but probably your piston ring or rings starting to go bad.
If you're running m1 5w-30 that stuff is known to be thin and can aggravate oil consumption. I'd go with 0w-40 M1 or GC 5w30 if you can find it. Secondly, add a catch can and it should help a lot.
It's probably just burning oil that's making it's way in through the PCV system. LS1s are notorious for pulling oil into the intake through the PCV. If you pull your throttle body off the intake it'll be obvious if that's what's happening. If it really bothers you put a catch can on the PCV, or do the conversion to the LS6 PCV system.
TECH Veteran
Joined: Dec 2001
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From: Ft. Lauderdale, FL, USA
Originally Posted by SwEeTWs6
no catch can instaled and yes im running 5w-30 you dont think 0w-40 would be alittle to thin?
When you stomp the gas it creates a huge drop in pressure, with bad valve seals on either a single or both heads, the oil from under the valve covers gets sucked in through the bad seals at that moment, but than it doesn't keep getting sucked through as you continue to accelerate.
I had this exact symptom, I had my heads rebuilt and it 100% cured it.
If it was bad rings, the trail of smoke would continue as long as your on the pedal.
.