I normally garage my truck but Everytime I leave it outside over night ....when I go to start it the next morning I get "water in fuel" light n dash comes up. Anybody know why this is?

Asked by Feb 27, 2017 at 11:23 AM about the 2013 Chevrolet Silverado 2500HD LTZ Crew Cab SB 4WD

Question type: Maintenance & Repair

3 Answers

77,745

For some reason the sensor is picking up moisture in the gas tank. This could happen since this time of year you have the cooler temperatures at night and warmer threw the day. Try a red bottle of Heat, or a product that has Isopropyl in it. This dissipates the moister that collects inside of the gas tank. Where as a methanol product does not. (yellow bottle of heat)

would this be a one time thing or on every fillup?

77,745

Not too sure on that one but adding Isopropyl will not hurt anything. You may want to do some research on this, see if there is anything out there on this sensor.

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