Notices
1994.5 - 1997 7.3L Power Stroke Diesel  

Still havin problems

Thread Tools
 
Search this Thread
 
Old Apr 17, 2009 | 05:42 PM
  #1  
Byrddog's Avatar
Byrddog
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 360
Likes: 0
From: Lexington, Ky.
Still havin problems

Well my truck still aint runnin good.
I put a new fuel pump in (now the fuel pressure bounces between 40-60)
I also put in a new fuel canister. (the old one was fallling apart)
I put a new CPS, changed the oil and filters, and checked the fuel lines.

Started up my truck this afternoon and still its still feeling and sounding somewhat restricted and still getting white smoke and still no CEL.
Im at a loss as to what else it could be.

I also had my batteries and altenator checked both checked good (but now when i start the truck the volt meter sits not far past the 8 then will creep slowly back up to half way, when it use to sit at aboul half as soon as it started. I dont know if this has anything to do with my orignal problem but, if any body thinks they know why this is happening please shine some light on me.


Hoping you guys might have some super diesel ninja insite for me. FTE #1

Sorry i keep posting this problem!
 
Reply
Old Apr 17, 2009 | 06:17 PM
  #2  
250turbo's Avatar
250turbo
Senior User
Joined: Dec 2005
Posts: 425
Likes: 2
From: anaheim,ca.
volt meter is correct. glow plugs are drawing power.could shim frp,but 50 should be good.
 
Reply
Old Apr 17, 2009 | 06:58 PM
  #3  
Hussler's Avatar
Hussler
Postmaster
Joined: Sep 2007
Posts: 4,195
Likes: 6
From: Medford Oregon
Club FTE Silver Member

IMO take out the 10K mod before additional troubleshooting.
x2 on the voltmeter thing .. it is supposed to do that.
 
Reply
Old Apr 17, 2009 | 07:04 PM
  #4  
Byrddog's Avatar
Byrddog
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 360
Likes: 0
From: Lexington, Ky.
Originally Posted by 250turbo
volt meter is correct. glow plugs are drawing power.could shim frp,but 50 should be good.
The wierd thing is 250turbo is after giving it fuel a couple times the volt meter pops right up and you can see the cab light get brighter. Ive got new batteries and altenator, when i first put them on a month ago it fired up like a champ. now it takes a couple seconds to fire up. And could this be whats causing me to run like crap?
 
Reply
Old Apr 17, 2009 | 07:04 PM
  #5  
yoslick's Avatar
yoslick
Elder User
Joined: Aug 2005
Posts: 507
Likes: 0
From: NW Wisc
volts sound about right as your GP's can draw up to 2 minutes from the time you turn the key on.. Is the fuel bowl full when it's running like this, still sounds like a fuel restriction???? Hows the air filter????
 
Reply
Old Apr 17, 2009 | 10:10 PM
  #6  
Byrddog's Avatar
Byrddog
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 360
Likes: 0
From: Lexington, Ky.
To let you guys know ive removed all mods.
The fuel bowl is filling up and it sounds and feels the same with or without the air filter on it. And the turbo sounds ok.
Could I have messed up the GPR, when the truck would not start i tried to arch it to see if that would work. (it did not)
 
Reply
Old Apr 18, 2009 | 08:40 AM
  #7  
c00nhunterjoe's Avatar
c00nhunterjoe
Lead Driver
15 Year Member
Joined: May 2007
Posts: 8,606
Likes: 13
From: Belair md
well you have made progress. the fuel pressure is now correct and it starts. some white smoke is normal on start up. does it clear up after a few minutes of running? have you removed the cat yet?
 
Reply
Old Apr 18, 2009 | 08:44 AM
  #8  
Hussler's Avatar
Hussler
Postmaster
Joined: Sep 2007
Posts: 4,195
Likes: 6
From: Medford Oregon
Club FTE Silver Member

Read some of your other posts. Usually removing the two bolts holding the flange connecting the down pipe to CAT is easy, unless the bolts are rusted. Removing the skid makes is much easier to access.

My CAT was clogged and it smoked (white) a lot. After I removed it I had much more zip with no more smoke unless it's really cold outside. I'm not saying this is your problem but from your description sure could be back pressure issue.

Here is a pic of my CAT. Exhaust end is pointing towards the sun and I snapped a photo from the other end. Bright white spot is marble size showing sunlight. The rest was pretty much clogged.

 
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 Apr 18, 2009 | 10:08 AM
  #9  
Byrddog's Avatar
Byrddog
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 360
Likes: 0
From: Lexington, Ky.
Thanks guys im getting ready to pull the CAT and give it a shot.

Fingers crossed!!!
 
Reply
Old Apr 18, 2009 | 11:32 AM
  #10  
Byrddog's Avatar
Byrddog
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 360
Likes: 0
From: Lexington, Ky.
Quick question: Should fuel pressure rise with RPMs?
Even at 2000 RPMs mine is staying between 40-60.
 
Reply
Old Apr 18, 2009 | 04:57 PM
  #11  
Byrddog's Avatar
Byrddog
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 360
Likes: 0
From: Lexington, Ky.
Guys i think we may have a winner.
I think its the CAT unbolted it from the DP and drove around the block a couple times and the truck is running much better.
Now to get this kitty off.
Ill keep you all posted on all the breaking news.
Thank for all the advice.
Harry
 
Reply
Old Apr 18, 2009 | 06:18 PM
  #12  
KevinC.'s Avatar
KevinC.
Elder User
Joined: Dec 2008
Posts: 657
Likes: 0
From: Ocala
Stick around long enough and I knew we would all get it figured out. There are many people on this site that know more than the engineers! I'm glad to see I'm learning too, I was on the right track w/ the cat and fuel pump from your last posts. Glad to see she's running well for ya.
 
Reply
Old Apr 18, 2009 | 06:22 PM
  #13  
Byrddog's Avatar
Byrddog
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 360
Likes: 0
From: Lexington, Ky.
Originally Posted by KevinC.
Stick around long enough and I knew we would all get it figured out. There are many people on this site that know more than the engineers! I'm glad to see I'm learning too, I was on the right track w/ the cat and fuel pump from your last posts. Glad to see she's running well for ya.
Thanks Kevin for all the helpful info
Also sorry to see your rig is giving you problems now.
I wish i had some info to pass your way.
 
Reply
Old Apr 18, 2009 | 07:13 PM
  #14  
BlueMule's Avatar
BlueMule
Posting Guru
Joined: Nov 2001
Posts: 1,743
Likes: 2
From: Ft Scott
That"s about right for a new pump and unshimmed regulator. The pump should build more pressure at higher rpm's, but if it does you'll never know it because the regulator dumps the excess pressure.
 
Reply
Old Apr 18, 2009 | 10:23 PM
  #15  
Byrddog's Avatar
Byrddog
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 360
Likes: 0
From: Lexington, Ky.
Originally Posted by BlueMule
That"s about right for a new pump and unshimmed regulator. The pump should build more pressure at higher rpm's, but if it does you'll never know it because the regulator dumps the excess pressure.
Thanks Blue i hooked up my fuel pressure gauge and at idle it bounced between 40-60 and at like 1800 RPMs it was quickly bouncing btween 40-60.
Just wanted to make sure that was right.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
6.9Addict
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
30
Dec 20, 2014 11:21 AM
Coolball
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
22
Nov 15, 2009 09:31 AM
F350Scott
1999 - 2003 7.3L Power Stroke Diesel
18
May 12, 2009 10:59 AM
skraler
1999 - 2003 7.3L Power Stroke Diesel
16
Nov 15, 2004 10:40 AM




All times are GMT -5. The time now is 11:58 AM.

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