2007 Hummer H2 Would Oil Come Exhauste Pipes

2007 HUMMER H2
63,500 MILES
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GEORGEANN
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  • 1 POST
Why would oil come from exhauste pipes?
Mar 24, 2013 at 4:43 AM
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CADIEMAN
  • ✓ASE Certified Mechanic
  • 3,544 POSTS
  • ASE Certified Mechanic
the only way that can happen is oil in the combustion chamber. You'll need to do a compression test and check for leak down. Say it reads 200 leave the gauge on for 15 min. then come back if you're still reading 200 that is good. If it doesn't. The piston rings are letting the oil blow by them that's how it gets in the exhaust.
Mar 24, 2013 at 4:57 AM
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MADMIKE1735
  • ✓ASE Certified Mechanic
  • 951 POSTS
  • ASE Certified Mechanic
can happen by overfilling engine oil..... check oil level.
Sep 14, 2013 at 10:39 PM
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