Another 7.3L Leaking - Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 4 Old 01-06-2008, 09:34 AM Thread Starter Rookie
Join Date: Aug 2007
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Another 7.3L Leaking

Hello everybody!

I'm new to Diesels and know didly about them, but I have learned a lot from this forum.

I have a 2002 F250, 7.3L PSD. I bought it about six months ago with only 50,000 miles on it. It doesn't appear to have any mods on it except for an upgraded exhaust.

I have developed a leak that I'm assuming is fuel. Looks like oil to me but after reading all the threads here it's got to be fuel. I first noticed puddles of fuel/oil in the manifold valleys, both front and rear. Now when I park the vehicle after driving it, the fuel/oil leaks down the rear of the engine and onto the ground leaving a nice size puddle.

I have used the search feature about fuel leaks and and there seems to be so many of them on the Powerstroke that it is at times confusing, especially since I have no knowledge of diesel engines.

Anyway I found the leak is coming from the fuel line located on the driver's side of the fuel pump. It is the line on the left that's painted with a green dot. It looks like there is either silicone residue or the remnants of an o-ring.

While the engine is running I can see the fuel leaking from where the line is threaded into the pump.


Is this an easy fix and can I do it myself? I have a warranty on it but it's such a pain to leave it off at the dealership.

Can anybody send me a link on how to fix it?

Should I still be driving it with this leak until I get a chance to get it fixed?

Thank's in advance!

Here's some pics of what i'm talking about.

The fuel lines painted with a green dot at the bottom of the pic.

Close up of the fuel line. One on the left is leaking. Note the red silicone looking substance around it.

2011 Ford F250 Superduty 4X4
6.7L Powerstroke
No Mods
11957 is offline  
post #2 of 4 Old 01-06-2008, 10:20 AM
Compression Ignition Addict
powerjunky's Avatar
Join Date: Aug 2006
Location: Redmond OR
Posts: 412
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Here is a bump. One of the tech's should be able to answer.

04 CC longbox 6spd
SCT with Eric & Doug's tunes
Airraid intake 4" strait pipe
380hp & 850ftlb
4" lift with 315/75/16
bedliner liner on rocker panels
powerjunky is offline  
post #3 of 4 Old 01-06-2008, 10:31 AM Rookie
Join Date: Jan 2008
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
oil leak

Good pic thats the oring for the high pressure pump fitting ford has a kit to replace 3 orings on the pump and green loctite so the fittings dont loosen up and blow the orings out.
Wanderer99 is offline  
post #4 of 4 Old 01-06-2008, 10:31 AM
Powerstroke Techie

djsdiesel's Avatar
Join Date: Nov 2006
Location: Moses Lake, WA
Posts: 723
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
That is a high pressure oil line. The o-rings behind the fittings are leaking. It takes a special tool to release the lines from the fittings. Remove the fittings and replace the o-rings. Go to a hardware store or a hydraulic shop and get 90 durameter o-rings.

99.5 F-250 PSD AT 4x4, 4in lift, 37 13.5 18 Pro comp Extreme A/T's, S&B Intake, GTP38R, DP Tuner custom programs (140 Agg., 120 sled pull, 80 tow and 60 tow), Rosewood DIY stage 2 injectors, BTS Trans, 5in exhaust no muffler, 6 oh intercooler, Ford AIC, EBPV delete, Foil delete, T/C lock up mod, Pusher Fuel Pump, Three Chime train Horns

djsdiesel is offline  

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome