Cummins QSB Fuel System Failures:

Cummins QSB Fuel System Failures: Hard Start, Power Loss & Injector Protection Guide The Cummins QSB series is one of the most popular electronically controlled marine diesel platforms operating throughout Ventura, Channel Islands Harbor, Oxnard, and Santa Barbara. While extremely reliable, the QSB fuel system is highly sensitive to contamination, restriction, and improper filtration. With […]