Cummins 5.9L fuel pump problems
We have a 1998 HR Endeavor with the 5.9 diesel. Last year after returning from our winter trip the fuel pump quit. After this years winter trip it quit again. Was replaced under warranty. A few days a...
Forum Discussion
The block 53 issue may have been in the 12 valve years but the fuel pump issues began with the introduction of the 24 valve engines introduced in January 1998, early 1997 models were the 12 valve version. The 24 valve was to meet next EPA mandates introduced for the diesel engines. These mandates were the cause of the 7.3 Power Stokes demise.
