× 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: Black smoke single injector?
Posted to HD/Fleet Forum on 7/23/2018 1 Reply

I agree with Mark. look at the balance rates. Look for one that is negative more than 4 usually that cylinder is getting too much fuel. Also cutting out each injector one at a time will help. Also check for fuel in the oil (high oil level). Login to read more.

1 Replies Received (View Replies)