I'm of the opinion the fuel bowl heater is worthless. It will only work with the key on and only heat the fuel in the bowl. Who is going to let the truck sit with the key on and engine off so the fuel in the bowl doesn't gel. If they did it wouldn't take long for the heater to drain batts to the point of not being able to start. If your truck sits in temps cold enough to gel the fuel in the bowl then the fuel in the fuel line all the way back to the tank is gelled. The fuel in the bottom of the tank where the fuel pick up is will also be gelled.

Next time I change the fuel filter I will probably remove it. It will make it easier to clean out the bowl if need be. In the meantime I have the connector unplugged so I don't have to worry about the element shorting out and blowing the PCM fuse.

Don't worry about if it will work or not, just remove it or disconnect it.

I'm sure some will disagree with me but that's my opinion and I will stick to it.