Re: 99 vortec 5.7 issue???
Seems like this has been a common problem...thru out some of these threads. I would check the cap 1st. Mines did exactly what yours is doing but w/o hauling anything. Had new plugs and wires but still had the orginal dist. cap lol Changed and running great. Good luck
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J.Garcia
1998 Chevy Silverado V-8 305/5.0 liter
2005 Pontiac Grandam V-6/3.4 liter
1989 Chevy 1500 Suburban (Aug/2007 Project)
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