2005 Mazda Tribute misfires

2005 MAZDA TRIBUTE
115,000 MILES • 6 CYL • 2WD • AUTOMATIC
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PIGLET2705
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  • 1 POST
Hello,

My mazda continues to misfire. We have changed all coils and spark plugs. We have even replaced the fuel injector. Do you have an idea of what could keep causing this?
Feb 7, 2010 at 1:11 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
Feb 7, 2010 at 1:55 PM
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