Diesel fuel is generally very clean when it leaves the refinery. But it can pick up contaminants as it travels through pipelines, terminals, delivery trucks, underground storage tanks and dispensing ...

Ford EFI pickups and Broncos from the late ’80s through the mid ’90s had their fuel pumps located in the tanks. When a pump dies or the filter gets plugged from rust and years of use — and they’re ...

A lift pump and a fuel pump might be part of the same system that delivers fuel to a diesel engine, but they have very ...