engine code help

1999 JEEP GRAND CHEROKEE
67,438 MILES • V8 • AWD • AUTOMATIC
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SMKROES
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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
Jan 6, 2011 at 5:29 PM
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JDL
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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?
Jan 6, 2011 at 6:13 PM
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JDL
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Just wanted to add.
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Jan 6, 2011 at 6:16 PM
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