2000 Seville sts 4.6 I checked plug,wire they look good seem to have no vac leaks car runs really rough when first started and smoothes out when I rev it up once its warm you hardly notice rough idle nothing when driving still geting missfire code on #7 cyl any thoughts on a bad or clogged injector I really don't want to spend 200 bucks on a hunch that I might have a bad coil any thoughts thanks

10

Asked by stealth92 May 03, 2013 at 01:04 AM

Question type: Maintenance & Repair

1 Answer

176,195

Try some fuel system cleaner. It could be the EGR valve.

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