My water in fuel indicator keeps coming on. I am sure there is no water. I think I need to take it apart and clean it out. Is there a gasket part number I can pick up before I tear into it? or do you just reseal with gray permatex?


Thank!

 

I had the same problem. I removed the drain plug and spayed it out the best I could through the hole with carb cleaner. I used a bent nozzle straw to get in there better. I wouldnt hurt to flush it with some diesel after the carb cleaner. That did not make an difference right away though. I used some high doses of howes fuel conditioner and the light wold stay off longer and longer each time I drove it, till it quit coming on at all when driving. (Still comes on with the key on)

 

I think the gasket is 3C3Z9A343A kinda pricy I've heard.

 

Some more info, it's an old TSB (maybe rescinded) but there is a part number for a "Kit" if you want to try it. I found it here: https://www.ford-trucks.com/forums/9...fuel-pump.html the picture links work if you click them from that location.

ISSUE:


Some 2003-2005 F-Super Duty vehicles built prior to 9/22/2004, 2003-2005 Excursion vehicles built prior to 1/10/2005, and 2004-2005 E-Series vehicles built prior to 9/16/2004 and equipped with a 6.0L diesel engine, may exhibit an intermittent / flickering water in fuel (WIF) lamp. The intermittent condition may be more prominent while turning corners, braking, or during uphill/downhill driving.
Some 2003-2007 F-Super Duty and 2003-2005 Excursion vehicles may exhibit a continuous WIF lamp on, even without the presence of water, due to debris in the reservoir or corrosion on the WIF sensor pins located in the manifold. Some 2003-2007 F-Super Duty and 2003-2005 Excursion vehicles may exhibit both intermittent / flickering and continuous WIF due to corrosion and the lack of new calibration.
ACTION:

Use the following Service Procedure based upon the customers symptom.
SERVICE PROCEDURE

For intermittent / flickering WIF lamp condition reprogram the powertrain control module (PCM) to the latest calibration using the IDS release B32.11 or higher. Calibration files may also be obtained at Motorcraft.
If the WIF lamp continuously illuminates without the presence of water, this may be due to corrosion on the sensor pins or sediment build up in the water reservoir.
Drain the horizontal fuel conditioning module (HFCM) reservoir and look for significant corrosion debris or sediment in the fluid drained from the reservoir. Remove the WIF sensor and inspect for corrosion on the pins. Remove the WIF Senor by first disconnecting the electrical connector, then using channel locks, rotate the WIF sensor at least 45 degrees counterclockwise. If there is corrosion / sediment on the pins, proceed to Step b. If there is not, refer to PC/ED lead diagnostics and do not proceed with the TSB.
If corrosion on the pins is causing the WIF lamp to illuminate, replace the WIF sensor with service kit, following the WIF sensor installation instructions in the kit.
If there was significant corrosion debris or sediment drained from the reservoir, clean the housing of the HFCM of any debris following the HFCM cleaning procedure. It is not necessary to replace the Manifold or HFCM assembly.
Vehicles with both an intermittent and continuous WIF light due to corrosion are to follow actions 1 and 2 as described above, referring to the vehicle built dates and application.
HFCM Cleaning Procedure
Disconnect both battery ground cables. Refer to Workshop Manual, Section 414-01.
Raise and support the vehicle. Refer to Workshop Manual, Section 100-02.
Disconnect the fuel pump, heater, water in fuel electrical connectors from HFCM (Figure 1).

https://www.ford-trucks.com/forums/pi...ictureid=23515
Figure 1 - Article 06-22-12

Disconnect HFCM electrical harness from main vehicle harness.
Disconnect the fuel hoses from HFCM.
Remove the fuel hose retaining clips and discard. Disconnect the fuel hoses closest to the engine (Figure 2 Number 1).

https://www.ford-trucks.com/forums/pi...ictureid=23513
Figure 2 - Article 06-22-12
Press in the retaining clips and release the fuel hoses closest to the fuel tank (Figure 3 Number 2).

https://www.ford-trucks.com/forums/pi...ictureid=23513
Figure 3 - Article 06-22-12
Remove the screws and the fuel manifold cover (Figure 4).

https://www.ford-trucks.com/forums/pi...ictureid=23509
Figure 4 - Article 06-22-12
Clean debris from the HFCM water reservoir housing (max 25 psi air).
Install the manifold cover and screws and torque to 44lb-in (5 N-m) (Figure 5).

https://www.ford-trucks.com/forums/pi...ictureid=23510
Figure 5 - Article 06-22-12
Reconnect/reinstall fuel lines.
Verify that there are no fuel leaks from the HFCM.

PART NUMBER PART NAME
6C3Z-9C264-A WIF Snsor Kit

 

I was getting a water in fuel light on damp mornings, going through large puddles, or after a car wash. So I climbed under there and started trying to tear stuff apart after getting the new drain plug and a bunch of other stuff I needed to address and found that one of the plugs was hanging out unplugged. I cleaned it up (did all of the other work) and plugged it back in and have had zero issues since, might be worth a look.

 

got mine from amazon

 

Thanks! Ordered!

 

You used to be able to just get the gasket only with that part number at about $9, or you could get a HFCM complete gasket kit 3C34-9A343-AC also for less. Bundling gets Ford more money.