I got a problem with my Water In Fuel sensor leaking and I have replaced the sensor itself because the original one was leaking also. I have been running the solid bottom filters for some time and didn't have a problem but would like to have the sensor operable just for the peace of mind that if I happen to get a bad batch of fuel. Any help or advice is greatly appreciated.

 

Make sure to change the oring every time you change the filter. Don't over tighten it, the sensor is only plastic. It could have cracked.

 

You can get a new WIF sensor from Cummins directly or from Geno's.

 

Already Replaced O-rings and already replaced the complete sensor.

 

Check the o-ring above the fuel heater. Mine did the same as yours finally figured out it was that top; ring.

 

Yea I believe that is my problem. You wouldn't happen to know the part number for that o-ring?

 

Or mabey a part # for that fuel heater delete pluggy thingy.

 

(I'll correct myself and confirm this number... From Cummins Quickserve), Rectangular ring seal p/n 3913695, you better confirm this one, it was greased up and smudged...

Fuel heater delete adapter p/n 3925954

 

I confirmed the p/n and corrected the part description

 

Do I really need the Fuel Heater cause I live here in Lebanon,Tn and it doesn't really get below 20 degrees all that often cause if I don't need it I will definately get that adapter.