Engine code help

Tiny
SMKROES
  • MEMBER
  • 1999 JEEP GRAND CHEROKEE
  • V8
  • AWD
  • AUTOMATIC
  • 67,438 MILES
My 99 jeep grand cherokee with a 4.7lt v8 keeps showing that cyl 6 is misfiring. I have replaced the coil twice all the plugs but i'm not sure what to try next do you have any help on this subject
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Thursday, January 6th, 2011 AT 5:29 PM

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Tiny
JDL
  • EXPERT
P0306? A misfire is a cylinder that doesn't put out the power compared to the other cylinders. Could be fuel--spark--compression? Engine running, did you visually check for spark at the plugs. Use a gage and check fuel pressure. Could be an injector issue?
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Thursday, January 6th, 2011 AT 6:13 PM
Tiny
JDL
  • EXPERT
Just wanted to add.
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Thursday, January 6th, 2011 AT 6:16 PM

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