Join Date: Feb 2019
Feedback Score: 0 reviews
17' 250 Water In Fuel Warning Reduced Power
So got my 17 new off the lot back in June of 18. I just hit 20k miles. Last Friday the WIF warning came on while i was on my way home from work. I was planning to do an oil change on saturday so figured I would drain it while doing that. Saturday i started the truck and the WIF warning was gone. Took the trash to the dump, hit the car wash and Advance auto for a few things and it was off the whole time. So i do the oil change, fill the DEF and other fuilds and I drain the fuel conditioner. I let the fuel sit for a few hours and it didnt appear to have any water in it. primed the system and truck was running perfect with no WIF warning.
I didnt drive the truck Sunday but today the WIF warning and reduced power warnings are on. So i hit the dealer and grab a fuel filter kit figuring i might as well change it out if I am draining down the conditioner again. So I get home and drain it out (again no water appears to be in the fuel) again and change the filters. Prime the system and no change. So I decided to go fill it up with fuel. Took 20 gallons. Truck is running perfect with no issues. I get home I drain it down again, pop out the WIF sensor, clean it with electrical contact cleaner, clean the connections, put it all back together and no change. Still have the WIF warning and the reduced power notice.
Is there some reset for this thing?
Does anybody know the theory of operation for for the sensor system?
Its got 3 wires going in. Also appears to have a switch on the sensor?
Anyone got any ideas before I head to the dealer?