× 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: cummins QSB5.9-30 won't start cold
Posted to HD/Fleet Forum on 8/20/2024 9 Replies

It sounds like the engine has low compression or the intake heaters are not working correctly.

When cranking what color smoke is coming out the exhaust? If white, that would be poorly combusted fuel, if black, that is not enough air.

Let's go old school. C... Login to read more.

9 Replies Received (View Replies)