misfire that wont go away - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 07-19-2010
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Join Date: May 2010
Location: vassar, MI
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misfire that wont go away

somebody help me i have a 99 3.0l with a number six misfire had the truck for about 2 months now and the misfire comes and goes sometimes is really bad and sometimes runs like a champ i changed the plugs and wires but am thinking maybe the coil pack lemme kno if you have the same problem or had the same problem i cant take it anymore
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Old 07-19-2010
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dude i heard you same prblem. read my post on the 3.0 misfire i just updated it so. i'm trying to help you asnd me solve this problem. is so annyoing.
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Old 07-20-2010
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Same motor and same problem. i have done the plugs wires and the coil pack and it still hasn't stopped.
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Old 07-20-2010
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do a compression test, a broken valve spring can come and go.
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Old 07-21-2010
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i think thats what the problem broken valve spring or seal.
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Old 07-22-2010
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im not sure if those year models have these but try the crank sensor or the hall effect sensor i had that problem in my 93 and it was the hall effect
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Old 07-26-2010
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do a head gasket check and if not try your injectors
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