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2000 SAAB 9-5 Smokeing exhaust

Tiny
THUNDERCLOUD
  • MEMBER
  • 2000 SAAB 9-5
Engine Performance problem
2000 Saab 9-5 4 cyl Front Wheel Drive Automatic

On morning start-up, smoke from the exhaust occurs sometimes. But after driving for a period of time, and stopping at a light, a cloud of smoke appears briefly and goes away. A grayish-white smoke with no real oil smell. Could this an overly rich mixture?
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Sunday, October 5th, 2008 AT 6:09 PM

5 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Does it do it on the same stop? Same time? Temperature of engine?
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Sunday, October 5th, 2008 AT 7:57 PM
Tiny
THUNDERCLOUD
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The smoking is not always at the same stop, but only after complete engine warm-up.
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Sunday, October 5th, 2008 AT 8:17 PM
Tiny
BLACKOP555
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It do it every stop after engine warmed?

Notice any difference in vehicle performance, fluid levels?
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Monday, October 6th, 2008 AT 4:58 PM
Tiny
THUNDERCLOUD
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Oil and coolant levels seem to be unchanged. If I'm stopped at a light for a period of time, it stalls after cylinder misfire. But immediately restarts, and the problem goes away for awhile. Never predictable.
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Monday, October 6th, 2008 AT 6:14 PM
Tiny
BLACKOP555
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It missfires and stalls also when this happens/ how long do you have to stop for it to do that?

I would be checkign for a vaccum leak, sticking pcv valve or hanging egr vavle first of all.
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Monday, October 6th, 2008 AT 7:06 PM

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