MY EXHAUST SMOKES WHITE SMOKE

  • Tiny
  • angelgurl03
  • 2001 Cadillac Deville
  • 152 miles

When im sitting for a while like a red light or something, when I pull off my exhaust smokes white smoke when driving my car is fine. Can u please tell me what I can do and what is the problem please and thank u.

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Tuesday, May 22nd, 2012 AT 1:39 AM

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  • Tiny
  • caradiodoc
  • Expert
  • 25,629 posts

White smoke is a sign of burning coolant. The level in the reservoir will be going down over time too. Keep in mind dripping water and a little steam from the tail pipe is the normal result of a properly working catalytic converter but you won't see that in your mirror.

To test for a head gasket leak, your mechanic will use a glass cylinder partially filled with a special dark blue liquid. He will draw air from the radiator through the cylinder while the engine is running. If combustion gases are present, the liquid will turn bright yellow.

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Tuesday, May 22nd, 2012 AT 1:45 AM

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