White smoke, rough idle and excessive fuel consumption

Tiny
JOSS O MAPHUTI
  • MEMBER
  • 2010 CHEVROLET AVEO
  • 1.6L
  • 4 CYL
  • 2WD
  • MANUAL
  • 170,000 MILES
White smoke when I start the engine and when turning off.
Wednesday, January 2nd, 2019 AT 2:12 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

White smoke is an indication of a coolant burning in a cylinder. this is usually a result of a failed head gasket leaking coolant into a cylinder.

You will need to have a shop check out the engine for a failed head gasket. they need to do a leak down test on each cylinder to see if a gasket has failed.

https://www.2carpros.com/articles/head-gasket-blown-test

that would also explain the rough running and increased fuel usage.

Roy
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Wednesday, January 2nd, 2019 AT 5:36 PM

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