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Smoking Exhaust

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Old Sep 19, 2008 | 10:18 AM
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SILVERBULLET's Avatar
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Question Smoking Exhaust

Hey, I'm New To The Forum,i Am A Proud Owner Of A 2007 Crossfire Coupe With 14,000 Miles, And When I Crank It Up, It Lets Out A Puff Of Blue Smoke. I Had It To The Dealer And They Tried To Tell Me They All Do That And It's Burning Off Carbon, Anyway After A Little Discussion, They Replaced The Valve Stem Seals. Has Anyone Else Had This Problem?
 
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Old Sep 19, 2008 | 11:10 AM
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Default Re: Smoking Exhaust

i haven't at 39000 miles today.
 
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Old Sep 19, 2008 | 12:58 PM
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Default Re: Smoking Exhaust

You sure it's blue smoke and not white ?
Not implying you're color blind, it's just that from inside the car it's sometimes difficult to tell. White smoke would more than likely be condensate inside the exhaust system steaming off.
 
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Old Sep 19, 2008 | 01:46 PM
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Lightbulb Re: Smoking Exhaust

Originally Posted by Stogey
You sure it's blue smoke and not white ?
Not implying you're color blind, it's just that from inside the car it's sometimes difficult to tell. White smoke would more than likely be condensate inside the exhaust system steaming off.
White, colorless, quick dissipating,evaporating "smoke" is as Stogey says more than likely steam/condensate. Black smoke is either a diesel or a TOO RICH gas to air mixture. Bluish smoke is usally an oil induced smoke. Continuous blue smoke especially when accelerating can be a sign of worn rings. Slight issue of blue smoke when starting can indeed be the valve stem seals causing a small abount of oil to seep past the seals onto the pistons while shut down, and is immediately burned off at fire up. If (I hope not) this happens again, have a friend start the car while you are behind it. You'll smell if it is oil. A sulphur-rotton eggy smell will probably be the Cat converter which is normal. DON'T BAG AND SNIFF!!
John P aka FTroopChief
 
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Old Sep 22, 2008 | 10:06 AM
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Default Re: Smoking Exhaust

I Took My Crossfire To The Dealer And They Replaced The Valve Seals, I Haven't Seen The Blue Smoke Anymore, It's Kinda Odd They Are Bad At 14000 Miles. But It's Ok Now.
 
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Old Sep 22, 2008 | 10:16 AM
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Default Re: Smoking Exhaust

Highly unusual that valve stem seals would be worn with just 14K miles !
 
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Old Sep 22, 2008 | 03:23 PM
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Default Re: Smoking Exhaust

Originally Posted by Stogey
Highly unusual that valve stem seals would be worn with just 14K miles !
Hal, I agree. Possible manufacture defect, maybe old seals, are they "umbrellas"? Be interesting to know the serial #s of the cars posted and dates of manufacture. Of +/- 85,000 Crossfires produced, this forum is a small fraction of those. How wide spread is this problem. Maybe 2 isolated similar cases?

John P
FTroopChief
 
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Old Sep 22, 2008 | 04:37 PM
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Default Re: Smoking Exhaust

I was wondering the same thing JP !
 
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