gas in oil?

2018 CHEVROLET 1500
62,820 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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JSISCO
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  • 2 POSTS
getting a lot of gas in my oil. Replaced hp fuel pump, replaced all injectors so far nothing has fixed it.
May 5, 2024 at 10:54 AM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
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There will always be a fuel smell to the oil, can I ask if the oil level keeps going up? If not, you may not have a problem. Can I ask how you determined there was gas in the oil? Please let me know. There is only one way for the gas to get into the oil and that is through the fuel injectors. Is the engine running okay?
May 6, 2024 at 11:32 AM
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JSISCO
  • MEMBER
  • 2 POSTS
Yes, it runs fine and the oil was at the full mark now it is 7 inches over full.
May 6, 2024 at 4:22 PM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,189 POSTS
Opps, yep that is not good. So, it sounds like the high-pressure fuel pump main seal is bad and leaking into the engine, here is how to change it out correctly. I would get a new pump not rebuilt. Check out the images (below). Please let us know what happens.
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May 6, 2024 at 8:04 PM