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Old 02-04-2013, 12:23 AM   #5
85Bowtie
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Join Date: Mar 2009
Location: TN
Posts: 410
Re: engine skip/lugging help

If it was a plug wire it should be running rougher at idle. You can let the truck idle and pull one plug wire at a time from the cap and see if the idle gets rougher. If it does, then that wire was working, if it does nothing, then that wire was the problem.

Have you touched the timing or any vacuum hoses?
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