Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Oil Leak

Thread Tools
 
Search this Thread
 
Old May 21, 2012 | 05:30 PM
  #1  
wallyrock's Avatar
wallyrock
Thread Starter
|
New User
Joined: Jun 2009
Posts: 7
Likes: 0
Oil Leak

I returned home from a weekend trip today and went out a couple hours later only to see a puddle of oil on the driveway. It had dripped down from behind the oil pan and there was oil at the rear of the rear of the engine, any ideas how serious this could be.
 
Reply
Old May 21, 2012 | 05:35 PM
  #2  
just another truck's Avatar
just another truck
Hotshot
15 Year Member
Photogenic
Photoriffic
Liked
Joined: Feb 2007
Posts: 10,499
Likes: 10
From: Sterling Heights,Mi
Welcome to the drip of the 7.3.

First thing you need to dois look inthe valley for oil, My bet, you have it.

IF you have oil here, the fixes are easy, but findinghte leak can be the pain.

The leaks are normally the non servicable plug on you HPOP (servicable by the way thanks to Guzzle)
HP oil lines
Turbo pedestal, or even the EBPV stem. lets make sure you have oil in the valley before we go further.
 
Reply
Old May 21, 2012 | 06:42 PM
  #3  
hammer65's Avatar
hammer65
Posting Guru
Joined: Jul 2008
Posts: 1,302
Likes: 1
From: Morehead, Ky.
I went through this, and the leak was a plug on the right hand side of the HPOP. It has a 3/8 drive hole in it. I had checked all of the above mentioned places, and the IPR. before I found it. Justanothertruck is right in that this is the first places to look.
 
Reply
Old May 21, 2012 | 06:43 PM
  #4  
white Buffalo's Avatar
white Buffalo
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
Just like posted above, plenty of us have been in the same situation. When the engine is cold take some simple green and spray her down real good and flush it clean with a garden hose. No need for a pressure washer and cover the alternator and air filter prior to cleaning. Let it dry out and drive it around. With a couple of rags and a flashlight you'll find the source of the leak. It's pretty common and with a little time and patience you'll find it. Like posted above, Turbo Pedestal o-rings, HPOP line and possibly diesel fuel from the bowl drain valve.
 
Reply
Old May 21, 2012 | 07:32 PM
  #5  
wallyrock's Avatar
wallyrock
Thread Starter
|
New User
Joined: Jun 2009
Posts: 7
Likes: 0
I am not sure were the valleys are your refering to.
 
Reply
Old May 21, 2012 | 07:35 PM
  #6  
just another truck's Avatar
just another truck
Hotshot
15 Year Member
Photogenic
Photoriffic
Liked
Joined: Feb 2007
Posts: 10,499
Likes: 10
From: Sterling Heights,Mi
See, if I was else where, I could provide a picture, but for now you will have to deal with my lousy explanation.

The valley is area between the heads on your truck, We dont have an intake manifold, so, where the intake once was, is now a valley.

You may need to remove the 7.3 plastic cover on top of your Oil pump to get in there, but this is where I would start.

The valley has a drain hole that dumps oil right back to where you are seeing it. DONT GO TO A SHOP, you will hear instantly it is your rear main seal.. you dont want to hear that, even more so because it wont be true.
 
Reply
Old May 21, 2012 | 10:17 PM
  #7  
white Buffalo's Avatar
white Buffalo
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
Here ya go," just like Just Another Truck" posted, the valley runs right down the middle of the engine, shine a flashlight behind and below the fuel filter (blue arrow in 2nd pic). There is a drain hole at the end of the valley, passenger side by the firewall before the cab. Fluid drians down the bell housing then down betweeen the engine & tranny making it look like a rear main seal.



 
Reply
Old Jun 11, 2012 | 10:07 PM
  #8  
Yellow Peril's Avatar
Yellow Peril
Cross-Country
Joined: Apr 2005
Posts: 54
Likes: 0
Originally Posted by white Buffalo
Just like posted above, plenty of us have been in the same situation. When the engine is cold take some simple green and spray her down real good and flush it clean with a garden hose. No need for a pressure washer and cover the alternator and air filter prior to cleaning. Let it dry out and drive it around. With a couple of rags and a flashlight you'll find the source of the leak. It's pretty common and with a little time and patience you'll find it. Like posted above, Turbo Pedestal o-rings, HPOP line and possibly diesel fuel from the bowl drain valve.
I love this place! Every issue that crops up, I look here and find the fix. 100% hit rate since joining. You guys are awesome, THANKS!

I too just developed this leak - yup oil in the valley (and on the driveway) I will be heading out to the Garage in the morning to fix...

Once I find the source of the leak is it normally just a little tighten of the existing plug or sensor? Or does the suspect item require removal and replacing?

Thx!
 
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 Jun 11, 2012 | 10:18 PM
  #9  
guitarpicr's Avatar
guitarpicr
Cargo Master
Joined: Apr 2007
Posts: 2,333
Likes: 1
From: St. Louis, Mo.
Club FTE Silver Member

Depends on the leak - May need to replace o-rings which may need removing turbo or pedastal, or HPOP - Kinda hard to say
 
Reply
Old Jun 11, 2012 | 11:05 PM
  #10  
GonzoCSU's Avatar
GonzoCSU
Senior User
Joined: Jul 2006
Posts: 395
Likes: 0
From: New Hampton, IA
Just got done replacing o-rings in the valley tonight. On the plus side the film of oil on the underside of my truck should slow the rust down a little.
 
Reply
Old Jul 31, 2012 | 04:44 PM
  #11  
Yellow Peril's Avatar
Yellow Peril
Cross-Country
Joined: Apr 2005
Posts: 54
Likes: 0
Finally got some time, engine cleaner, a bright light and inspection mirror to look thoroughly for this leak... the oil is most definitely seeping out from around the snap ring on the back of the HPOP. I haven't got the time or confidence to tackle that fix myself. What parts, and how many hours can I expect from my local stealership?
Thx!

Oh, I picked up some oil absorbing sheets to tidy up the valley while investigating the exact source. These things look like they would make a nice diaper to set in the valley and absorb the drip as it happens until I can get into the shop... would this be a fire risk? They are 100% poly something or other...
 
Reply
Old Jul 31, 2012 | 05:03 PM
  #12  
stinson 108-1's Avatar
stinson 108-1
stinson 108-1
10 Year Member
Joined: Jan 2012
Posts: 1,015
Likes: 7
From: south jersey
Club FTE Gold Member
Most that know will tell you that the hpop doesn't usually leak at that point. Make sure its not the fuel bowl drain or other fuel line connections or O-rings on the fuel bowl. Its true that fuel mixing in with dirt in the valley will look like oil. Just want you to be 100% sure you know where its coming from before a dealer tells you that you need a whole new pump. Look at the threads for fuel bowl and hpop reseal at the top of the site page where it says common mods or maintenance.
 
Reply
Old Jul 31, 2012 | 05:06 PM
  #13  
stinson 108-1's Avatar
stinson 108-1
stinson 108-1
10 Year Member
Joined: Jan 2012
Posts: 1,015
Likes: 7
From: south jersey
Club FTE Gold Member
Second line down, click on that and scroll down or use the search function, you'll find it. I think its under Springer Pop's maintenance tips. I don't know how to add links to a post, sorry.
 
Reply
Old Jul 31, 2012 | 06:02 PM
  #14  
Yellow Peril's Avatar
Yellow Peril
Cross-Country
Joined: Apr 2005
Posts: 54
Likes: 0
Most definitely is oil, not fuel. I have been enduring the stuff for a few months now...

I will look again to be sure of the exact leak point. Possible that it is the plug on the side and dripping around. May be from up top where fuel bowl sets as I did have the bowl worked on recently.

thx
 
Reply
Old Jul 31, 2012 | 06:08 PM
  #15  
stinson 108-1's Avatar
stinson 108-1
stinson 108-1
10 Year Member
Joined: Jan 2012
Posts: 1,015
Likes: 7
From: south jersey
Club FTE Gold Member
Also look for high pressure oil coming from the hpop hose fittings. It could be leaking there. Just clean real good to be sure. You might try watching while running, but be careful you don't get a face full.
 
Reply



All times are GMT -5. The time now is 06:08 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