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99 5.4L 150 xlt 4x4 very rough idle while in drive and reverse

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Old 07-09-2010, 06:28 PM
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Default 99 5.4L 150 xlt 4x4 very rough idle while in drive and reverse

just got home from camping trip, backed into the driveway and very rough idle and almost felt like a miss in engine, shakes bad under load. drove home with my boat fine but when i hit the driveway the situation started. no check engine light while in park seems fine. something in the drive train?
Old 07-09-2010, 07:11 PM
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Cop or coil over plug and or a bad spark plug.
Old 07-10-2010, 02:17 PM
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if it is not throwing a code how will i know which cylinder?



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