Old Steamershttps://www.oldsteamers.com/Pumps, pressure, and machines that outlived their makersVP44 Injection Pump: Why They Fail & How to Keep the Next One Alivehttps://www.oldsteamers.com/blog/vp44-injection-pumphttps://www.oldsteamers.com/blog/vp44-injection-pumpThu, 06 Aug 2026 12:00:00 +0000Why the Bosch VP44 injection pump on 1998–2002 Cummins diesels fails, the real warning signs, and the fuel-pressure fix that saves replacements.