Smoke

Tiny
STREETKINGZ
  • MEMBER
  • 1992 LEXUS ES 300
I was wondering when I start up my car it blows out white smoke does that mean that there too much gas left over from before because it u let it sit for like 10 min the no more smoke, what does that mean, how would I fix that problem
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Sunday, May 19th, 2013 AT 9:44 PM

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Tiny
CARADIODOC
  • EXPERT
Excessive unburned fuel causes black smoke. White smoke is a sign of burning engine coolant. That is caused by a leaking cylinder head gasket. You will see the level dropping in the coolant reservoir. You can verify that further by adding a small bottle of dark purple dye to the reservoir, then you check a few days later with a black light. The dye will show up as a bright yellow stain that you follow back to the source. If the head gasket is leaking you'll find the dye inside the tail pipe.
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Sunday, May 19th, 2013 AT 9:53 PM

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