An inexpensive way to monitor feed pump pressure and alert you if your feed pump is not working properly is the BD low fuel pressure LED light kit. A failing lift pump will not only cause sub-standard performance, it can cause costly damage to the injection pump. Keep tabs on your truck's fuel system with the BD Diesel Performance low fuel pressure LED kit, which incorporates a red LED light that illuminates if lift pump pressure falls below specifications. It is inexpensive protection and easy installation!