× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Smoking, rough running 6.5L
Posted to HD/Fleet Forum on 11/21/2008

[...trimmed text...]

Robert, Remember to start with the basics and move on from there. Check fuel supply pressure and volume. Rail pump has a high failure rate. Check fuel quality. Scan PCM for trouble codes and data. Th... Login to read more.