Question about 1999 Saab 9-5
What would black or white smoke indicate
White smoke inducates the Vatican has elected a new Pope!
No, really... White smoke means that somehow oil has seeped into the intake manifold, which could mean a couple of things. Here are some of them::
1. the throttle body valve has failed. this tube runs in an oil port down the manifold from the head, about 4" long.
2. worn valve stem seals or guides.
3. worn/cracked head gasket leaking water/antifreeze into the combustion chamber (causing steam)
4. turbo failure.. smokes at idle
5. cracked block. fissure inside cast block. change motor.
Black smoke indicates too much fuel being introduced through 1 or more ports. This could be anything from a stuck injector to a bad ECM sensor.. even a clogged air filter (which would ****** the air, causing improper mix)
Posted on Feb 05, 2010
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Posted on Jan 02, 2017
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