That “Water in Fuel” light on your dash is not a friendly suggestion. It’s your diesel engine politely warning you that something expensive might be developing in the fuel system. Most modern diesel trucks (Powerstroke, Duramax, Cummins) have a water-in-fuel sensor and a fuel/water separator designed to catch water before it reaches high-pressure components. When the light comes on, the separator has collected enough water to trigger the sensor, or the system thinks it has. Manufacturers are blunt about what to do next: drain it immediately to avoid injection system damage.
Owning a diesel pickup truck has its clear advantages—impressive power, excellent towing capacity, and strong fuel efficiency. But with that performance comes a set of unique maintenance responsibilities that every diesel truck owner should budget for.
Winter can be brutal on your truck, but the transition to spring brings its own set of challenges. Follow this spring truck maintenance checklist to ensure your rig is in top shape and ready for the road ahead.
The fuel system is the heart of a diesel engine. Its primary purpose is to deliver the right amount of fuel into the combustion chamber. Faulty injectors can lead to serious performance issues in your diesel vehicle.
Faulty fuel injectors can continuously cost you money without you even realizing it.
Warning signs your diesel is water-contaminated.
Treating your diesel fuel will help combat the issues that warmer temperatures can create.
Are you doing everything you can to properly maintain your engine?
What to look for and how to protect yourself.
Check out some simple tips and tricks to maximize fuel economy and defend your wallet.