Black smoke on startup? : 1992-1999

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Black smoke on startup?

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ChilinMichael

Post subject: Black smoke on startup?

Posted: Sat May 01, 2010 3:02 pm

Posts like a Northstar

Joined: Wed May 21, 2008 9:49 pm
Posts: 2097
Year and Trim: 2004 Volvo S60

This car is really tiring me out...of course I'm sure it's tired of me too...bah.

Start up car, at least now from what I notice at cold...looks like a little black smoke...and smells a bit too. Certainly not burning coolant and doesn't look blue at all....thoughts?

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PRD2BDF

Post subject: Re: Black smoke on startup?

Posted: Sat May 01, 2010 3:03 pm

Certified Bonneville Nut

Joined: Fri May 23, 2008 12:56 pm
Posts: 4277
Year and Trim: 2005 Saab 9-3 Arc

Probably just running rich, that's my guess.

_________________

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ChilinMichael

Post subject: Re: Black smoke on startup?

Posted: Sat May 01, 2010 3:07 pm

Posts like a Northstar

Joined: Wed May 21, 2008 9:49 pm
Posts: 2097
Year and Trim: 2004 Volvo S60

Maybe an o2 sensor is in order?

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RJolly87

Post subject: Re: Black smoke on startup?

Posted: Sat May 01, 2010 3:15 pm

Certified Bonneville Nut

Joined: Tue May 27, 2008 8:53 am
Posts: 5403
Location: Las Cruces, NM
Year and Trim: 1993 Buick Park Avenue
1994 Buick Regal Custom

o2 sensors usually aren't used right away on cold start. You may wish to check the Coolant Temp Sensor going to the computer, it may be thinking the engine is colder than it really is, and fuel dumping to try and get it warmed up.

_________________
~Randall~

1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place

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ChilinMichael

Post subject: Re: Black smoke on startup?

Posted: Sat May 01, 2010 3:40 pm

Posts like a Northstar

Joined: Wed May 21, 2008 9:49 pm
Posts: 2097
Year and Trim: 2004 Volvo S60

Hmm, please note it is only for a split second or two right as the engine it turned over, doesn't stay that way for more than that...

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RJolly87

Post subject: Re: Black smoke on startup?

Posted: Sat May 01, 2010 4:32 pm

Certified Bonneville Nut

Joined: Tue May 27, 2008 8:53 am
Posts: 5403
Location: Las Cruces, NM
Year and Trim: 1993 Buick Park Avenue
1994 Buick Regal Custom

Bear in mind also that black is usually unburned fuel. If the issue were happening on my vehicle, I wouldn't worry about it, but with that being said, I will let the experts take it from here.

_________________
~Randall~

1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place

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[ 6 posts ]

Portal » Board index » Mechanical and Maintenance (no chat or performance) » 1992-1999

All times are UTC - 5 hours [ DST ]

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