Notices
General Diesel Discussion  

POSSIBLE FUEL LEAK?

Thread Tools
 
Search this Thread
 
Old Dec 22, 2009 | 12:35 PM
  #1  
HMLA's Avatar
HMLA
Thread Starter
|
New User
Joined: Nov 2009
Posts: 4
Likes: 0
Question POSSIBLE FUEL LEAK?

My WIF light went off and I drained the fuel out of the HFCM no less than a dozen times. I have not seen any amount of water or gel that would set off the indicator. Before I was to take it in and get looked to see if it was a bad sensor I added some Stanadyne diesel fuel treatment that was proportional to the amount in the tank. Since that has happened I noticed that at about 3,000 RPM when I accelerated there was some stuttering/hesitation in the engine. There were no other indicators like smoke, etc... The next day after I got home I noticed that there was a fuel smell and some fuel stains in the parking spot. I looked under the Excursion when it was stopped and running and dont see any fuel leaking from the HFCM or anywhere else. It just snowed 19" here so there was a lot of water dripping from the low points but nothing from a point that I would think would be associated with a fuel leak. I did not hit anything that would rupture a line in the snow either. Does anyone have any ideas?
 
Reply
Old Dec 22, 2009 | 02:32 PM
  #2  
senix's Avatar
senix
Super Moderator
15 Year Member
Liked
Loved
Top Answer: 1
Joined: Aug 2008
Posts: 37,375
Likes: 1,860
From: Frederick, MD
Club FTE Gold Member
sounds to me like some bad fuel, the only other thing that I would recommend is looking that the filters. When was the last time you changed them?

Also verify that you got the drain valve closed and get some new fuel in the truck those may also help.
 
Reply
Old Dec 22, 2009 | 02:43 PM
  #3  
HMLA's Avatar
HMLA
Thread Starter
|
New User
Joined: Nov 2009
Posts: 4
Likes: 0
Thanks Senix

I keep a maintenance log on my Excursion and will have to check the last time I replaced the fuel filters. I know that I did but just dont know when. I looked at the HFCM nut and it looks flush. I dont want to play with that too much because I know that they are prone to stripping. Once I can find a dry place to get under the truck I will drain the HFCM again and see if there is anything in it. Do you think that the filter is clogged and fuel is draining through there? This is the first time that I have had any problem with the vehicle since I bought it six years ago.
 
Reply
Old Dec 22, 2009 | 04:57 PM
  #4  
senix's Avatar
senix
Super Moderator
15 Year Member
Liked
Loved
Top Answer: 1
Joined: Aug 2008
Posts: 37,375
Likes: 1,860
From: Frederick, MD
Club FTE Gold Member
more than likely it is just bad fuel and draining it and burning will solve the problem.
 
Reply
Old Dec 22, 2009 | 05:59 PM
  #5  
sandmanf250's Avatar
sandmanf250
Posting Guru
Joined: Mar 2003
Posts: 1,246
Likes: 3
what engine?
 
Reply
Old Dec 22, 2009 | 07:48 PM
  #6  
HMLA's Avatar
HMLA
Thread Starter
|
New User
Joined: Nov 2009
Posts: 4
Likes: 0
It is a 6.0L on a 03 Excursion.
 
Reply
Old Dec 23, 2009 | 04:42 AM
  #7  
sandmanf250's Avatar
sandmanf250
Posting Guru
Joined: Mar 2003
Posts: 1,246
Likes: 3
on my 6.o when the wif came on it would not go out until i took the front driveshaft(4x4) down,removed the whole unit from the frame ,disassembled the manifold from the filter housing and cleaned all the gunk around the wif sensor,cleaned the contacts and reassembled carefully using racor filter.now is the time to replace the 6mm drain plug with the updated brass one. sounds harder than it is .it goes pretty quick .
 
Reply
Old Dec 23, 2009 | 08:43 AM
  #8  
HMLA's Avatar
HMLA
Thread Starter
|
New User
Joined: Nov 2009
Posts: 4
Likes: 0
Thanks sandmanf250

That is what I was afraid of. I will have to take some time at the Hobby Shop on base to do this. I am going today to get a new tank of gas and see what happens.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Jan 5, 2010 | 11:55 PM
  #9  
gpsyking's Avatar
gpsyking
New User
Joined: Apr 2006
Posts: 22
Likes: 0
Leak at Fuel Filter Regulator

Similar situation, although no WIF light, diesel running off the transmission, however the leak originated up front at my fuel filter/regulator, located up on top of the engine. There is a key shaped O-ring that wore out and deformed/shrunk. Likely due to constant use of Diesel Kleen and just age. (203,000 miles on Truck).

The leak trickled down and was blown to the back of the engine/transmission, while driving down the freeway. I would check it right after I stopped and saw the drips at the back of the engine. After leaving it parked for awhile and checking again it ran down off my lower radiator hose and then onto the pavement below just behind the radiator.

2003 F350 CC Long Bed King Ranch
 
Reply
Old Jan 6, 2010 | 08:46 AM
  #10  
Going_Going_Gone's Avatar
Going_Going_Gone
Tuned
Joined: Mar 2006
Posts: 496
Likes: 6
From: Arizona
Had that seal go out on mine too. However, it only created a constant drip and strong diesel odor...no performance issues though.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BroncoEx
6.4L Power Stroke Diesel
14
Jul 9, 2013 10:37 PM
yukonsce
6.4L Power Stroke Diesel
10
Feb 11, 2013 09:41 AM
RickBraden
6.0L Power Stroke Diesel
5
Oct 13, 2010 07:07 PM
RickBraden
1999 - 2016 Super Duty
2
Oct 6, 2010 06:54 PM
gonnasellit_temp
6.0L Power Stroke Diesel
23
Sep 27, 2004 07:31 AM




All times are GMT -5. The time now is 02:36 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE