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

Help

Thread Tools
 
Search this Thread
 
Old Dec 22, 2013 | 08:55 AM
  #1  
KristaD2001's Avatar
KristaD2001
Thread Starter
|
New User
Joined: Dec 2013
Posts: 5
Likes: 0
Help

What is the normal rpm to run in idle also at 55 for an f-350 power stroke 7.3...seems high. Just replaced the water separator seal, now it's running high and rough.
 
Reply
Old Dec 22, 2013 | 09:08 AM
  #2  
1996pwrstrk's Avatar
1996pwrstrk
Cargo Master
20 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Apr 2004
Posts: 3,162
Likes: 1
From: Vilonia Arkansas
At speed it depends on your gears , what do have for RPM idle?
 
Reply
Old Dec 22, 2013 | 09:13 AM
  #3  
megawatt00's Avatar
megawatt00
Hotshot
Joined: Jan 2008
Posts: 13,144
Likes: 11
From: Rochdale MA
Club FTE Gold Member
At idle 500 to 1000 RPM depending on if it is cold and the high idle kicks in at 55 that depends on your gearing At 55 MPH you should be under or around1600 to 1800 RPM IIRC

The rough ile you have now is due to air being introduced in the fuel system, that is normal when you replace that seal.
 
Reply
Old Dec 22, 2013 | 09:39 AM
  #4  
KristaD2001's Avatar
KristaD2001
Thread Starter
|
New User
Joined: Dec 2013
Posts: 5
Likes: 0
It's been cold in the morning and has had trouble getting started. Will the air eventually go away?
 
Reply
Old Dec 22, 2013 | 10:01 AM
  #5  
HKusp's Avatar
HKusp
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
Club FTE Gold Member
Yes, if you drive it for about 50 miles, it should smooth out.
 
Reply
Old Dec 22, 2013 | 11:03 AM
  #6  
timmyboy76's Avatar
timmyboy76
Lead Driver
Joined: Sep 2010
Posts: 7,793
Likes: 50
Originally Posted by KristaD2001
It's been cold in the morning and has had trouble getting started. Will the air eventually go away?
May want to do some ohm testing on glow plugs and test/s on the glow plug relay...last time oil was changed? what weight oil you running?
 
Reply
Old Dec 22, 2013 | 11:38 AM
  #7  
KristaD2001's Avatar
KristaD2001
Thread Starter
|
New User
Joined: Dec 2013
Posts: 5
Likes: 0
Alright, the oil is just due it's over only a couple hundred miles. I went 5000 miles. The oil is 15-40. I was thinking maybe the glow plugs too. it does take it a bit to warm up. I let it run for about 10 minutes. It is just super sensitive on the gas pedal, when it wasn't like that before. That's beside it not wanting to warm up.
 
Reply
Old Dec 22, 2013 | 11:44 AM
  #8  
Tact's Avatar
Tact
More Turbo
Joined: Mar 2006
Posts: 582
Likes: 2
From: Eads, TN
Test your GPR as mentioned above. Switching to synthetic oil helped my romps. Now that I have 30 gallons of Mobil 1 in the garage it looks like I'll be running that for a while.
 
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 Dec 22, 2013 | 01:32 PM
  #9  
JOHN2001's Avatar
JOHN2001
Logistics Pro
10 Year Member
Joined: Dec 2010
Posts: 4,738
Likes: 15
From: Temperance, MI
Also switch to 5w40 not 15w40 that should help cold starts. Don't be afraid to cycle the glow plugs a couple times. Just because your wait to start light shuts off doesn't mean you have to start cranking. They usually stay on for about 90 seconds to two mins anyways. If you hook up a glow plug led you'll know when they turn on anf shut off.
 
Reply
Old Dec 23, 2013 | 03:01 PM
  #10  
KristaD2001's Avatar
KristaD2001
Thread Starter
|
New User
Joined: Dec 2013
Posts: 5
Likes: 0
Thank you so much for your help and suggestions! I really appreciate it! I will do some Investigating!
 
Reply
Old Dec 23, 2013 | 09:57 PM
  #11  
BadDogKuzz's Avatar
BadDogKuzz
Postmaster
Joined: Dec 2010
Posts: 2,951
Likes: 4
From: Gary,Indiana
Originally Posted by KristaD2001
Thank you so much for your help and suggestions! I really appreciate it! I will do some Investigating!
Since everyone else answered your questions and gave you some great suggestions I'll just say "Welcome to FTE" Stick around it is a great group of people here and they are always willing to help others out.
 
Reply
Old Dec 24, 2013 | 12:07 AM
  #12  
KristaD2001's Avatar
KristaD2001
Thread Starter
|
New User
Joined: Dec 2013
Posts: 5
Likes: 0
I see that! Thank you very much! Greatly appreciating the advice!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LARIAT 85
Fuel Injection, Carburetion & Fuel System
1
May 7, 2017 04:17 PM
raven3
5.0L Coyote
8
Feb 10, 2015 05:35 PM
CA-F250
6.7L Power Stroke Diesel
8
Nov 18, 2012 07:22 PM
imlowr2
1997 - 2003 F150
1
Sep 10, 2011 01:51 PM
SBastow
1999 - 2016 Super Duty
2
Apr 19, 2008 01:44 AM




All times are GMT -5. The time now is 08:12 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