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

engine surge

Thread Tools
 
Search this Thread
 
Old Apr 5, 2010 | 06:45 PM
  #1  
snakedoc's Avatar
snakedoc
Thread Starter
|
Postmaster
Joined: Jan 2009
Posts: 4,006
Likes: 1
From: AL, Reform
engine surge

today will pulling 9000lbs from a stop up a hill when i get to 2500rpms the motor losses power then surges and the rpm jumps around form 2400rpms to 2700rmps? and some times the rmps will jump even will stopped, and with it worm. no codes with a sc 1705. is there a sensor that i need to look at or just the way it is? this is the most that i have pulled with the truck and my brothers dose not some to do this?
 
Reply
Old Apr 5, 2010 | 08:16 PM
  #2  
snakedoc's Avatar
snakedoc
Thread Starter
|
Postmaster
Joined: Jan 2009
Posts: 4,006
Likes: 1
From: AL, Reform
read some other treads don think it is the TPS. no problems only under load and at 2500rmps, not jumping.
 
Reply
Old Apr 5, 2010 | 10:12 PM
  #3  
tdpower's Avatar
tdpower
Postmaster
Joined: Dec 2008
Posts: 3,340
Likes: 2
Have you done the in tank mods? Worth doing even if it is not the problem.
 
Reply
Old Apr 5, 2010 | 10:25 PM
  #4  
snakedoc's Avatar
snakedoc
Thread Starter
|
Postmaster
Joined: Jan 2009
Posts: 4,006
Likes: 1
From: AL, Reform
have not done on the list, it sounds like it does not have oil pressure i think i will clean the IPR.
 
Reply
Old Apr 5, 2010 | 10:44 PM
  #5  
tdpower's Avatar
tdpower
Postmaster
Joined: Dec 2008
Posts: 3,340
Likes: 2
Let us know how it turns out. That was a second guess as well. Probably need to monitor the pressure to be sure.
 
Reply
Old Apr 7, 2010 | 03:03 PM
  #6  
snakedoc's Avatar
snakedoc
Thread Starter
|
Postmaster
Joined: Jan 2009
Posts: 4,006
Likes: 1
From: AL, Reform
i think i found the problem, i changed my steering gear 3 weeks ago and have not driven much, found leak on the lines Monday. i fixed the leak but remembered that i removed the IC pipe, and yes it was not seated good so i think i had a boost leak, that could causes sugering at high rpms? i have not cleaned the IRP but will soon.
 
Reply
Old Apr 7, 2010 | 06:33 PM
  #7  
kupaa's Avatar
kupaa
Posting Guru
Joined: Jun 2007
Posts: 1,180
Likes: 0
From: OAHU,KANEOHE HAWAII
I maybe wrong but if the IC pipe was not on you would have no boost and i dont think it could surge like that,could be a fuel problem.
 
Reply
Old Apr 8, 2010 | 09:29 AM
  #8  
snakedoc's Avatar
snakedoc
Thread Starter
|
Postmaster
Joined: Jan 2009
Posts: 4,006
Likes: 1
From: AL, Reform
the ic pipe was not on all the way it was pushed out about halve way, so i think i got boost on the low end then it leaked on the high end, but will look at the fuel and IRP when time permits. also i drove some and it respond better now so i think that was it but will look on. thanks for the help.
 
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 Apr 9, 2010 | 01:29 PM
  #9  
stemo76's Avatar
stemo76
Senior User
Joined: Jul 2009
Posts: 246
Likes: 1
From: Lynnwood, WA
Club FTE Silver Member

Originally Posted by snakedoc
have not done on the list, it sounds like it does not have oil pressure i think i will clean the IPR.
How is this done? I have my HPOP out and the IPR out but I don't really know what I am looking for. Their seems to be a print assembly inside but It won't come out. I can push it down and don't feel any binding. The trouble I have is that my HPOP pressure goes from 500 to 4k in about 1.5 seconds after the truck starts.
 
Reply
Old Apr 9, 2010 | 01:43 PM
  #10  
snakedoc's Avatar
snakedoc
Thread Starter
|
Postmaster
Joined: Jan 2009
Posts: 4,006
Likes: 1
From: AL, Reform
here is the IPR fix.
New Page 0
 
Reply
Old Apr 9, 2010 | 01:50 PM
  #11  
stemo76's Avatar
stemo76
Senior User
Joined: Jul 2009
Posts: 246
Likes: 1
From: Lynnwood, WA
Club FTE Silver Member

Thanks, I will give it a try.
 
Reply




All times are GMT -5. The time now is 06:35 PM.

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