What should fuel pressure be on CAT C-15 MXS?
What should fuel pressure be on CAT C-15 MXS? Your pressure is fine at 98 psi at WOT. More than likely your pressure is actually lower than 98 when you are under load. If you want to try shimming the pump to bring it up a tad you can, but yours is fine for now. Every month 400 people find a job with the help of TruckersReport. What does a high fuel pressure reading mean? So another words sometimes HIGH fuel pressure at this test point can mean a Secondary filter Restriction causing low fuel Rail pressure hence the importance...