× 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 8/27/2024 3 Replies

[...trimmed text...]

Sounds like you are gaining. In my opinion the fuel pressure should be up around 4 - 5 PSI. With a mechanical pump I would expect the fuel pressure to raise as the engine is revved up. With an electr... Login to read more.

3 Replies Received (View Replies)