Diesel engines are known for their reliability - that’s probably at least partially why you bought one. However, like all things, diesels and their components wear out eventually. Fortunately, the technicians at Hendrix Auto Diesel in Scottsville, KY have you covered. Here are some fuel system issues to watch out for.

Electronic Fuel Pump - If your electronic pump fails, it won’t supply fuel to the engine from the tank. You won’t hear it when you turn the key on, or it might sound strained while the truck is running. If fuel isn’t making it from the tank to the filters, the pump is most likely your problem.

Fuel Filters - Filters get clogged by debris, gelling in cold temperatures, or just get saturated with dirt over time. If there’s a lack of fuel before the injection pump, a filter change is a good place to start.

Injection Pump - Injection pumps are subjected to immense stress; heat, wear, and high pressures take their toll on one eventually. However, most issues are actually due to other issues - water in the system that prevents lubrication, debris in the fuel that damages the pump, or clogged and gummed up components as a result of poor fuel quality. Misfiring and poor running conditions are symptoms of a bad or clogged pump.

Injectors - Injectors are complex and sensitive to conditional changes. Any amount of debris or water, no matter how small, will damage an injector, causing it to wear out, or stick open or closed. Misfiring or excessive smoke is a symptom of a bad injector. Any issues with your fuel system should be addressed as soon as possible, by a professional. These components are expensive, sensitive, and the health and longevity of your engine depend on it.

Fortunately, there are preventative measures you can take to ensure your engine stays reliable - proper maintenance will keep your truck running smooth. Whether you need maintenance or repair, Hendrix Auto Diesel has your back.