smoky engine

1994 MITSUBISHI EXPRESS
90,000 MILES • 2.0L • 4 CYL
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MATTHEW STEWART
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  • 1 POST
engine blows blue white smoke, when warmed it settles buy blows small about of grey smoke. I changed the valve stem seals, but still smoky.
Sep 15, 2019 at 5:40 PM
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MASTERWRENCH
  • CERTIFIED EXPERT
  • 258 POSTS
Welcome to 2CarPros!

Blue smoke is the result of the engine burning oil. You've already eliminated the valve stem seals as one of the possible causes. There are several other possible causes that need to be explored. Please take a look at the information in the link below. It will walk you through the other possible causes and how to inspect/diagnose them.

https://www.2carpros.com/articles/blue-smoke-from-engines-exhaust

Please let me know if you have any additional questions.
Sep 15, 2019 at 10:32 PM