Why does my water in fuel light keep coming on?

Why does my water in fuel light keep coming on?

Water In Fuel light means mostly there is some water in the fuel and the sensor found at the bottom of the fuel filter is telling you this but.. Sometimes this can be a wrong reading too. We do have a thumb screw under the bottom of the filter for draining off some water or fuel.

How do you clear the water on a Duramax fuel light?

Depress the accelerator and brake pedals simultaneously and fully and hold them down for ten seconds. Release the accelerator and brake pedals and turn the ignition key off. The system is now reset.

Is it safe to drive with the fuel filter warning light on?

Is it safe to drive with the fuel filter warning light on? While it’s not an emergency when the light first comes on, it is important that you get the filter drained as soon as possible. Waiting too long will let the water build up and eventually let it get to your engine where it can cause some serious damage.

What does water in fuel mean on a diesel truck?

First of all, you do not need to worry, this is a message indicating that the fuel water separator needs to be drained. Minimize driving until you can service the system to avoid water-related damage or contamination.

How can you tell if you have water in your diesel?

If you think your diesel has been contaminated with water, some telltale signs to watch for include:

1. A loss of RPM and power in the machine.
2. Rough starting or erratic idling.
3. Trouble or a lag in acceleration when stepping on the pedal.
4. Abnormal exhaust such as white smoke.

How do you test water in a fuel sensor?

The WiF sensor uses the difference of electric conductivity of water compared to diesel and gasoline to determine the presence of water. A water sensor can detect the presence of water, often by measuring the electrical conductivity of the water present and completing a circuit to send a signal.

How do I reset my fuel filter?

Without pressing the pedals, turn the ignition key to the on position without starting the engine. Wait five seconds. Completely press the brake and the accelerator pedals simultaneously and hold for ten seconds. The system is now reset.

How do you reset the fuel filter on a Duramax 2020?

To reset the system, press and hold the thumbwheel for two seconds while Fuel Filter Life Remaining is displayed on the DIC.

What are signs of a clogged fuel filter?

5 Signs of a Bad Fuel Filter

• Poor Engine Performance.
• Hard Starting.
• Stalling.
• Random Misfire or Rough Idle.
• Fuel System Part Failures.

What do I do if I get water in my diesel tank?

The simplest way to control water, if it’s in an above ground tank, is to drain the water off. But many users can’t do that, especially if they use underground fuel storage (like gas stations). They can use water coalescing filters, but those have to be changed. There are fuel additization options available.