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Odd Engine Mis-Fire on '96 850 850

posted by  metzger XC90 V8 on  Wed Jun 3 06:34 CST 2009
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last visit: Sat Oct 4 17:44 CST 2014
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My 850 will not "accept" much throttle. It starts fine and idles smooth, and will rev ok if the pedal is pushed very gradually. But, moving the pedal quickly or very much will result in an engine mis-fire with severe stumble. In other words, if I "baby" it from idle, it runs ok. But, if the pedal is mashed, it shudders, shakes and won't rev. No CEL is present now, but it did light for a brief period several days ago. Plugs and O2 sensor have less than 20K miles, rotor and crank-position sensor about 3k miles. Original plug wires (103K miles). Not sure about fuel filter. Any suggestions?






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New Odd Engine Mis-Fire on '96 850 [850]
posted by  metzger XC90 V8  on Wed Jun 3 06:34 CST 2009 >


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