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

ESOF Question

Thread Tools
 
Search this Thread
 
Old Jul 17, 2010 | 12:58 PM
  #1  
ghig1967's Avatar
ghig1967
Thread Starter
|
Elder User
Joined: Feb 2008
Posts: 568
Likes: 0
From: Irwin,Pa
ESOF Question

I was out camping a few weeks ago & had a brake hanging up. I took everything apart to grease the slides. In the process, I realized my hub was still engaged (driveshaft spun while turning hub) I really didnt want to tear everything apart at my campsite, but I did notice the vacuum hose was very loose at the nipple going into the hub, so I pulled it off to find the nipple very rusted. I screwed out the nipple & looking down in the hole where the nipple was, there was a lot of crud. I cleaned it out the best i could with a screwdriver, put everything back together & after a little playing with the hub, I was able to get in disengaged.

I am at home now & have my front end torn apart. its kinda a well needed maintenance weekend.. I have the hub off & did the maintenance using guzzles page. I have a new nipple & vacuum hose to install, but my question is, can I safely flush the channel from the port where the nipple goes in? I was thinking of spraying WD40 or something down in the hole, but am hesitant to do so for fear of doing damage flushing the dirt somewhere else thats going to cause me problems.. Any ideas if I can do harm doing this ??
 
Reply
Old Jul 17, 2010 | 02:37 PM
  #2  
clintbonnie's Avatar
clintbonnie
Cargo Master
Joined: Jun 2003
Posts: 3,292
Likes: 6
From: Ardenvoir, Washington
While you have it apart, check the breather bar for dirt, etc.. The system won't work if this is plugged up.. It is the silver bar on the out side of the manual bar **** to shift from auto to manual..
 
Reply
Old Jul 17, 2010 | 02:52 PM
  #3  
cps's Avatar
cps
Laughing Gas
15 Year Member
Joined: Mar 2008
Posts: 967
Likes: 7
From: coquitlam,BC
Originally Posted by ghig1967
I was out camping a few weeks ago & had a brake hanging up. I took everything apart to grease the slides. In the process, I realized my hub was still engaged (driveshaft spun while turning hub) I really didnt want to tear everything apart at my campsite, but I did notice the vacuum hose was very loose at the nipple going into the hub, so I pulled it off to find the nipple very rusted. I screwed out the nipple & looking down in the hole where the nipple was, there was a lot of crud. I cleaned it out the best i could with a screwdriver, put everything back together & after a little playing with the hub, I was able to get in disengaged.

I am at home now & have my front end torn apart. its kinda a well needed maintenance weekend.. I have the hub off & did the maintenance using guzzles page. I have a new nipple & vacuum hose to install, but my question is, can I safely flush the channel from the port where the nipple goes in? I was thinking of spraying WD40 or something down in the hole, but am hesitant to do so for fear of doing damage flushing the dirt somewhere else thats going to cause me problems.. Any ideas if I can do harm doing this ??
Do not spray anything in there. Your best bet is to pull the hub apart. If that hose connection on that nipple has been compromised for some time then you could have corrosion in there. If that happens you will eventually lose the internal seal and you will have issues with your ESOF.
 
Reply
Old Jul 17, 2010 | 03:36 PM
  #4  
ghig1967's Avatar
ghig1967
Thread Starter
|
Elder User
Joined: Feb 2008
Posts: 568
Likes: 0
From: Irwin,Pa
Thanks Guys.. I already have the hub out & did the maintenance that is in guzzles maintenance page. I was afraid to risk spraying anything inside, so I tried a thin piece of wire & found out it pushed straight thru ( pushing some crud out with it) & came out inside the spindle. I also may have found another culprit causing me issues. When I bought the truck, I found out the ball joints were bad so the stealership replaced them for me.. The grooved thrust washer that goes against the rear seal was in backwards.. The grooves were facing "out" & were FULL of grease.. I'm so glad you can count on the certified ford mechanics to do things right !!!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
psi3000
Excursion - King of SUVs
8
Dec 17, 2020 07:04 AM
robertbruce
1967 - 1972 F-100 & Larger F-Series Trucks
4
Apr 20, 2013 05:25 AM
Gmeanie
1999 - 2016 Super Duty
1
Nov 9, 2011 01:12 PM
vaughn
1973 - 1979 F-100 & Larger F-Series Trucks
8
Jan 16, 2004 03:58 AM




All times are GMT -5. The time now is 09:01 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE