Smoke

1992 LEXUS ES 300
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STREETKINGZ
  • MEMBER
  • 22 POSTS
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
May 19, 2013 at 9:44 PM
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CARADIODOC
  • CAR REPAIR CONTRIBUTOR
  • 34,309 POSTS
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.
May 19, 2013 at 9:53 PM
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