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

Debugging slightly low boost

Thread Tools
 
Search this Thread
 
Old Sep 23, 2015 | 07:32 PM
  #286  
ExPACamper's Avatar
ExPACamper
Post Fiend
Joined: Mar 2015
Posts: 5,277
Likes: 32
From: Blairsville, Pennsylvania
Originally Posted by tjmike
Here's the only strange thing that I noticed. On cyll7 the glow plug adapter had a brownish fluid on it after the test. I did not notice anything on the glow plug.

It's Almost like an oil and water mix. My coolant is red, so I don't think it's coolant.
Water in your fuel

It does look like water and oil mix.

Look at your dipstick, see if it looks the same?
 
Reply
Old Sep 24, 2015 | 05:58 AM
  #287  
Tugly's Avatar
Tugly
Hotshot
10 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
I say that warrants pulling the stick and having a very good look in there. Make sure you have a fresh O-ring set on-hand.
 
Reply
Old Sep 24, 2015 | 07:17 AM
  #288  
tjmike's Avatar
tjmike
Thread Starter
|
More Turbo
Joined: Oct 2013
Posts: 584
Likes: 1
I'm going to do the o-rings on all 8.


1) Do I need some kind of short pry bar to get the injectors out?


2) No need to pull the oil rail plugs right - just be sure to clear the cylinders?

3) Vacuum cyll through GP hole.

4) VCs on, turn over motor by hand (clockwise on the crank pully?)

5) all 8 GPs out - crank with 42 pin out to blow out anything missed by hand crank

6) Install GPs


7) Will be hard to start - give it a few tries. Be sure to give the starter a rest

8) give it 100 miles or so to get all air out of the system
 
Reply
Old Sep 24, 2015 | 11:43 AM
  #289  
tjmike's Avatar
tjmike
Thread Starter
|
More Turbo
Joined: Oct 2013
Posts: 584
Likes: 1
To get the injector out:

1) Remove 8mm bolt
2) Remove oil spout
3) Push the collar towards the valley so that it clears the bolt on the valley side
4) Holding the collar so its pushed towards the valley, pry up on the collar at the point closest to the valley.

Are the steps above correct?

Should the injector be really hard to pop out?
 
Reply
Old Sep 24, 2015 | 01:22 PM
  #290  
scotttahoe's Avatar
scotttahoe
Posting Guru
Joined: Jan 2013
Posts: 2,215
Likes: 2
From: North Lake Tahoe
Here is a write up I did on pulling the injectors and replacing the cups. Its not quite finished but will help you through it. I need to add it here, but you have to drain the oil out of the heads so not to hydro lock the motor. Take out the 2 allen head bolts from inside the valve cover near the top.

https://www.ford-trucks.com/forums/1...with-pics.html
 
Reply
Old Sep 24, 2015 | 01:28 PM
  #291  
ExPACamper's Avatar
ExPACamper
Post Fiend
Joined: Mar 2015
Posts: 5,277
Likes: 32
From: Blairsville, Pennsylvania
Originally Posted by tjmike
I'm going to do the o-rings on all 8.

Remember to lube the orings

1) Do I need some kind of short pry bar to get the injectors out?


2) No need to pull the oil rail plugs right - just be sure to clear the cylinders?

3) Vacuum cyll through GP hole.

4) VCs OFF, GPs all out, lay cardboard or something over the open GPs and valve areas, turn over motor by hand- clockwise on the crank pulley nut, one bit at a time- BIG ratchet and grunts

5) all 8 GPs out - crank with 42 pin out to blow out anything missed by hand crank

6) Install GPs

Change oil and filter. It will likely be contaminated with fuel. Go ahead and fill HPOP about 3/4 of the way with fresh oil through the fill/inspection plug (#30 Torq, IIRC)


7) Will be hard to start - give it a few tries. Be sure to give the starter a rest

Be prepared for LOTS OF SMOKE (any oil in the cylinders makes its way through the exhaust)

If you have the spot to do it, park on a slight uphill, spray valley with Simple Green, then flush off with hose. Oil will run off the back of the motor onto the ground. Might want to use a catch pan or whatever.

8) give it 100 miles or so to get all air out of the system
My comments above in RED.
 
Reply
Old Sep 24, 2015 | 01:42 PM
  #292  
tjmike's Avatar
tjmike
Thread Starter
|
More Turbo
Joined: Oct 2013
Posts: 584
Likes: 1
Originally Posted by scotttahoe
Here is a write up I did on pulling the injectors and replacing the cups. Its not quite finished but will help you through it. I need to add it here, but you have to drain the oil out of the heads so not to hydro lock the motor. Take out the 2 allen head bolts from inside the valve cover near the top.

https://www.ford-trucks.com/forums/1...with-pics.html

I got the rear injector out already. I should be good as long as a pull the glow plug and turn it over by hand right?

I also drained the fuel bowl in hopes of less fuel contaminating the oil.








 
Reply
Old Sep 24, 2015 | 01:45 PM
  #293  
scotttahoe's Avatar
scotttahoe
Posting Guru
Joined: Jan 2013
Posts: 2,215
Likes: 2
From: North Lake Tahoe
Clean those up as best as you can. It also makes it easier to coat the new O-rings in oil to get them on but not necessary. Dunk the injector into oil before putting it back into the bore. Don't loose the copper washer on the end.

Did you remove these bolts?





 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

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

 Verdad Gallardo
story-1

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-2

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

 Brett Foote
story-3

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

 Michael S. Palmer
story-4

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-5

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-6

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
story-7

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

 Joe Kucinski
story-8

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

 Michael S. Palmer
story-9

The Best F-150 Deal of Every Trim Level (XL through Raptor)

 Joe Kucinski
Old Sep 24, 2015 | 02:20 PM
  #294  
tjmike's Avatar
tjmike
Thread Starter
|
More Turbo
Joined: Oct 2013
Posts: 584
Likes: 1
Originally Posted by scotttahoe
Dunk the injector into oil before putting it back into the bore.
Dunk - not coat - so oil can also soak into the inside of the injector?


Originally Posted by scotttahoe
Did you remove these bolts?
no



Could this impact boost and egts?

 
Reply
Old Sep 24, 2015 | 02:44 PM
  #295  
scotttahoe's Avatar
scotttahoe
Posting Guru
Joined: Jan 2013
Posts: 2,215
Likes: 2
From: North Lake Tahoe
Dunk or coat as long as it has a good covering of oil.

You can either remove the oil valley head plugs which requires more work and is messy or you could remove those allen bolts ( there are 2 of them per head). This will allow the oil to drain down to the pan and not into the cylinder heads. If oil got into the cylinder heads and you go to put it back together and fire the engine, you will hydro lock the motor. If the cylinders are full of oil you can either suck it out or turn the motor over by hand several times to clear it out.
 
Reply
Old Sep 24, 2015 | 02:54 PM
  #296  
ExPACamper's Avatar
ExPACamper
Post Fiend
Joined: Mar 2015
Posts: 5,277
Likes: 32
From: Blairsville, Pennsylvania
Originally Posted by scotttahoe
...or turn the motor over by hand several times to clear it out.
This is what we did.

Nice pics and carnage Keep them coming.

See the dark brown and black burnt areas? That can mean combustion gasses coming past your copper washer/seat.

Possibilities: Loose injector, worn orings and copper washers, bad cups (I think, my cups were okay)

Don't worry about the fuel bowl, you'll want to change your oil anyways

Scott's giving good advice, so I'm filling in the stuff I'm most comfortable with saying
 
Reply
Old Sep 24, 2015 | 02:56 PM
  #297  
scotttahoe's Avatar
scotttahoe
Posting Guru
Joined: Jan 2013
Posts: 2,215
Likes: 2
From: North Lake Tahoe
Those O-rings are shot. I don't think that will impact boost and gets (that is usually a leaky up-pipe or loose boots) Those O-rings will impact the way the motor runs/sounds/vibrations.

Originally Posted by tjmike


Could this impact boost and egts?


 
Reply
Old Sep 24, 2015 | 02:58 PM
  #298  
scotttahoe's Avatar
scotttahoe
Posting Guru
Joined: Jan 2013
Posts: 2,215
Likes: 2
From: North Lake Tahoe
Originally Posted by ExPACamper
This is what we did.

Nice pics and carnage Keep them coming.

See the dark brown and black burnt areas? That can mean combustion gasses coming past your copper washer/seat.

Possibilities: Loose injector, worn orings and copper washers, bad cups (I think, my cups were okay)

Don't worry about the fuel bowl, you'll want to change your oil anyways

Scott's giving good advice, so I'm filling in the stuff I'm most comfortable with saying

Please add all you can. Your help is huge.
 
Reply
Old Sep 24, 2015 | 03:16 PM
  #299  
white Buffalo's Avatar
white Buffalo
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
Your in this far - have you considered replacing the injector cups?
 
Reply
Old Sep 24, 2015 | 03:23 PM
  #300  
tjmike's Avatar
tjmike
Thread Starter
|
More Turbo
Joined: Oct 2013
Posts: 584
Likes: 1
I'm not loosing coolant and I don't have white smoke all the time. Don't those get replaced only if an issue is detected?
 
Reply



All times are GMT -5. The time now is 02:11 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