engine problems

2004 MAZDA 3
164,000 MILES • 4 CYL • FWD • MANUAL
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ALEXLULA
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  • 1 POST
i have a 2004 mazda 3S with a 2.3L engine and i have alot of prblems with it but the one that im most concerned about is that theres never any oil left in the engine no matter how manny time i fill it it leaks out i have checked it a couple of times but i have never found a leak theres no leak spots in my driveway and when i start it and rev it black gunk comes out of my muffler
Jun 26, 2011 at 6:37 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
If its not leaking externally-that oil has to go somewhere-perhaps its being burn in the combustion chamber/cylinders.Blue smoke indicates oil is burning-black is for rich mixture more fuel then air is being burned-Verify the smoke
Jun 26, 2011 at 7:41 AM
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