Engine sputters and shuts off

2003 CHEVROLET VENTURE
200,000 MILES • 6 CYL • 2WD
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ERIC REED
  • MEMBER
  • 1 POST
It runs engine gets warm it starts sputtering and start losing power, blows white and finally it quits running.
Jul 6, 2019 at 11:10 AM
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STEVE W.
  • ✓ASE Certified Mechanic
  • 15,200 POSTS
  • ASE Certified Mechanic
Welcome to 2CarPros. If you mean it is blowing white smoke out of the exhaust the most likely issue is a bad head gasket or failed intake gasket that is letting coolant into the engine. GM had issues with intake gaskets on some V6 engines over the years. Testing for a failed head gasket isn't hard and the tools are usually available as loaners from the parts store.
https://www.2carpros.com/articles/head-gasket-blown-test

Try those and see if it shows as a bad head gasket. For the intake gasket it depends on which engine it is.
Jul 6, 2019 at 12:15 PM
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