GMC 3.0 Diesel Problems – Common Issues Guide
Owners have noted some issues with the GMC 3.0 diesel engine, known as GMC 3.0 diesel problems. Since its release in 2019 for the Silverado and Sierra 1500 trucks, these issues have surfaced. Problems include trouble starting, injector failures, issues with the high-pressure fuel pump (HPFP), and exhaust gas recirculation (EGR) malfunctions. These challenges often…