07/25/2026Published by VFI Diesel on 07/25/2026Categories Diesel Fuel InjectionDiesel Troubleshooting & DiagnosticsDiesel Engine Runs Rough When Warm: 6 CausesIf your diesel engine runs rough when warm but starts and idles fine when cold, you’re dealing with a specific failure mode that most generic troubleshooting […]
05/04/2026Published by VFI Diesel on 05/04/2026Categories Diesel Fuel InjectionDiesel TroubleshootingFuel System RepairDiesel Injection Pump Losing Prime: Causes & FixesA diesel injection pump losing prime is one of the most frustrating problems a diesel owner can face — your engine cranks and cranks on a […]