Fuel in oil, will not start?

2004 GMC ENVOY
200,000 MILES • 6 CYL • 4WD • AUTOMATIC
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SOUTHERNSPROUTS
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  • 1 POST
Car has been going downhill for about 2 months. Losing power. Idles rough but not high. I realized I had fuel in my oil. Possibly fuel injectors leaking?? Changed oil and now it won't start. The mechanic said there was no oil pressure or compression. Motor blown. But when I try to start it. Sounds like it wants to. Almost like not getting enough fuel to start. code reader will not read my truck. Not sure why.
Jul 31, 2024 at 4:51 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,233 POSTS
Yes, it is possible the fuel injectors are leaking, or it could be the fuel pressure regulator here is the location so you can remove the vacuum line to see if gas is present and if so, the regulator is bad. Also, to see if the mechanic is correct, you can check the compression, here is the guide:

https://www.2carpros.com/articles/how-to-test-engine-compression

This will tell us if the engine is any good or not. Check out the images (below). Please let us know what happens.
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Aug 1, 2024 at 1:59 AM
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