2002 gmc Savana 2500 misfires and low oil pressure at stops

Asked by Jun 22, 2014 at 11:27 PM about the 2002 GMC Savana

Question type: Maintenance & Repair

I have a 2002 GMC Savana 5.7 ltr engine that idles poorly and the oil pressure drops
when I come to a stop light , also the exhaust smells rich any ideas on what's wrong ? I
have replaced the distributor, cap wires and new plugs

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