I have a 2001 f250 the water in fuel lite stays on even after cleaning bowl and new filter cant find sensor were is it on 2001

If this situation occurs after a period of time then check the tank vent correctly at the vent valve on top of the tank. If it occurs reasonably quickly then check the fuel return lines from the injectors to the tank for obstruction ,kinks ,squashed etc preventing the fuel free access to the tank. check the pressure regulator to the pump is holding sufficient pressure to maintain pressure to the pumpin the pump

Hello, Your sensor may be too sensitive after all the water went through. If the truck is running well, the filters must be working. There are some additives which help disperse water in Diesel fuel.
Disconnecting the Batteries was a good idea, but I am sure there are good additives at some busy truck stops. You can get some of the same stuff at Autozone or Oreillys, but they would not know like a longhaul Trucker would.

So I bet the best additives and advice will be found at the Truck stops. You might want to check with your Car Insurance company for coverage as the water problem was storm related via the drains and you are speculating thats the source. Could it as easily be Vandalism? Locking fuel caps may help. For what you spent and may continue to spend, an Insurance claim may be a good solution.

All you can do now is secure the tanks and pour the additives to it.

YOU HAVE AIR IN THE SUCTION LINE.OR YOUR ELECTRIC FUEL PUMP FUSE IS BLOWED OR PUMP IS FAULTY IF YOU CANT GET NO FUEL TO FLOW.

Your engine should be the 6.0, where did you drain water from? The place to drain water is the fuel pump on the rail. The only way to get the water out is to remove the allen-head screw that you will see halfway down the electric fuel-pump, on the bottom-side. Let me know if that is what you see and how it went. Also if we are are talking about the same fuel system your fuel filter kit should include two fuel cartridge filters.

You have to drain the water out of the fuel tank. There should be instructions on how to do that in your owner's manual. The sensor is in the tank. Hope this helps.

Check if the injectors are getting fuel and if they are getting a pulse signal to actually inject.The jump start could spike the electonics.

there is an additive at most auto parts stores and even some gas stations, i forget the name but if you read the bottle it will say something about removing water from the fuel system, they are generally located next to the "octane booster" or "fuel system cleaners"

A fuel filter is a filter in the fuel line that screens out dirt and rust particles from the fuel. They are normally made into cartridges containing a filter paper. They are found in most internal combustion engines.
Fuel filters serve a vital function in today's modern, tight-tolerance engine fuel systems. Unfiltered fuel may contain several kinds of contamination, for example paint chips and dirt that has been knocked into the tank while filling, or rust caused by moisture in a steel tank. If these substances are not removed before the fuel enters the system, they will cause rapid wear and failure of the fuel pump and injectors, due to the abrasive action of the particles on the high-precision components used in modern injection systems. Fuel filters also improve performance, as the fewer contaminants present in the fuel, the more efficiently it can be burnt.
Fuel filters need to be maintained at regular intervals. This is usually a case of simply disconnecting the filter from the fuel line and replacing it with a new one, although some specially designed filters can be cleaned and reused many times. If a filter is not replaced regularly it may become clogged with contaminants and cause a restriction in the fuel flow, causing an appreciable drop in engine performance as the engine struggles to draw enough fuel to continue running normally.
Some filters, especially found on diesel engines, are of a bowl-like design which collect water in the bottom (as water is more dense than diesel). The water can then be drained off by opening a valve in the bottom of the bowl and letting it run out, until the bowl contains only diesel. Many Fuel Filters contain a water sensor to signal to the ECU or directly to the driver (lamp on dashboard) if the water reach the warning level. It is especially undesirable for water to be drawn into a diesel engine fuel system, as the system relies on the diesel for lubrication of the moving parts, and if water gets into a moving part which requires constant lubrication (for example an injector valve), it will quickly cause overheating and unnecessary wear. This type of filter may also include a sensor, which will alert the operator when the filter needs to be drained. In the diesel fuel filter there is (usually) a fuel heater to avoid the paraffin (in case of lower temperature) inside the filtrating element which can stop the fuel flow to the engine.

this sounds like a fuel contamination problem Assuming you have allready ck that glow plugs are all working add a few cans of dewater to tank and drive it a bit change fuel supplier

a simple way to see if glow plugs are even trying to work is right after wait to start lite goes out look at voltmeter on dash if it's not bouncing a bit there not working

glow plugs preheat the combustion chamber so cold fuel will fire off

also that truck might also have the fuel heater internal to filter housing
installed that might be burnt out as well OHM meter will tell you if so

check the sensor in the fuel filter housing on the frame rail just below the drivers door. the sensors get corroded and can keep the light on