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

Flutter problem

Thread Tools
 
Search this Thread
 
Old Feb 11, 2009 | 05:27 PM
  #1  
Khart's Avatar
Khart
Thread Starter
|
Freshman User
Joined: Feb 2009
Posts: 45
Likes: 0
Flutter problem

I'll try to explain this as simple as possible. fficeffice" /><O></O>
<O></O>
2003 SD F350 4X4 CC 7.3 running edge J/A. As I'm driving with cruse on once in a while i feel a flutter almost like the cruse turned off and back on (gauges would not pick up drop in RPM or Temp). This isn't enough to shut down the cruse but enough to feel it. I checked for codes and there were none, I installed new glow plugs Because I was having a hard to start and lots of smoke on cold mornings. Once in a while at start up and take off it would really struggle to run smoking and once in a while popping. I'd pull over and let it warm up longer but it didn't seam to help. After a few miles and it heated up it would run fine. Once I cleared the smoke it would have plenty of power and run fin. I do run Lucas injector cleaner in fuel most of the time.

I purchase a Cam Postion Sensor just in case but haven't installed it yet.

What do you all think??
 
Reply
Old Feb 11, 2009 | 05:50 PM
  #2  
CampSpringsJohn's Avatar
CampSpringsJohn
Hotshot
15 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2006
Posts: 14,069
Likes: 17
From: Melbourne, Ky
Cam sensors will make it do some funny things. I believe I would start there.
 
Reply
Old Feb 11, 2009 | 06:08 PM
  #3  
miller_feed's Avatar
miller_feed
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Club FTE Silver Member

Have you tried putting it back to stock? Take the edge off and see if anything changes.
 
Reply
Old Feb 11, 2009 | 06:32 PM
  #4  
DieselCamper01's Avatar
DieselCamper01
Fleet Owner
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Mar 2007
Posts: 28,283
Likes: 6
From: BLT, MN
Is the Lucas injector cleaner a possible issue? Is it ok to use in diesel? Just asking.
 
Reply
Old Feb 12, 2009 | 11:20 PM
  #5  
Khart's Avatar
Khart
Thread Starter
|
Freshman User
Joined: Feb 2009
Posts: 45
Likes: 0
installing cam sensor tomorrow. seams like it only happens when cold. let you all know what happens.
 
Reply
Old Feb 12, 2009 | 11:44 PM
  #6  
CampSpringsJohn's Avatar
CampSpringsJohn
Hotshot
15 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2006
Posts: 14,069
Likes: 17
From: Melbourne, Ky
Originally Posted by DieselCamper01
Is the Lucas injector cleaner a possible issue? Is it ok to use in diesel? Just asking.
I believe the lucas injector cleaner works for both gas and diesel engines, but I could be wrong.

Lucas make an injector lubricant for diesels, perhaps that's what he was talking about.
 
Reply
Old Feb 13, 2009 | 07:04 AM
  #7  
Khart's Avatar
Khart
Thread Starter
|
Freshman User
Joined: Feb 2009
Posts: 45
Likes: 0
Can the CPS be a problem and it still not throw a code? By the way had codes checked at AutoZone with hand held, not sure how reliable they are. If the CPS doesn't fix it I'm going to have to take it in to a dealer $$$$ to hook it up on there machine.
 
Reply
Old Feb 13, 2009 | 07:15 AM
  #8  
megawatt00's Avatar
megawatt00
Hotshot
Joined: Jan 2008
Posts: 13,144
Likes: 11
From: Rochdale MA
Club FTE Gold Member
The code readers that they have at Autozone will read some of the codes on our trucks but not all of them. These engines were built by International and are not OBD 2 compliant
 
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 Feb 13, 2009 | 07:24 AM
  #9  
RedBoat's Avatar
RedBoat
Rather Be Floatin
20 Year Member
Photogenic
Joined: Oct 2005
Posts: 2,468
Likes: 0
From: Marble Falls, Tx.
Club FTE Silver Member

that sounds just like what mine did when the 2nd CPS went bad just a stutter then......
post back after replacing the cps and let us know how it goes!
 
Reply
Old Feb 13, 2009 | 09:19 AM
  #10  
Khart's Avatar
Khart
Thread Starter
|
Freshman User
Joined: Feb 2009
Posts: 45
Likes: 0
Thanks guys for all your help, great site. I'll post how it goes.

Not sure if this has anything to do with it but both times it was hard to start, smoking, and a backfire pop I was low on fuel in tank (low fuel light on). Is there a pump in tank to push to IP that could be getting week and I'm running injectors low on fuel?
 
Reply
Old Feb 13, 2009 | 09:43 AM
  #11  
DieselCamper01's Avatar
DieselCamper01
Fleet Owner
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Mar 2007
Posts: 28,283
Likes: 6
From: BLT, MN
No stock intank pump unless someone added it before you bought the truck
 
Reply
Old Feb 13, 2009 | 09:58 AM
  #12  
papadelogan's Avatar
papadelogan
Snowboard season cometh..
Joined: Jan 2006
Posts: 5,406
Likes: 1
From: Gulf Coast of Florida
Club FTE Silver Member

Originally Posted by DieselCamper01
No stock intank pump unless someone added it before you bought the truck
True but if the pickup is just a tad bit higher than it should be, this could lead to a fuel starvation issue. Not likely, but possible. You said that after it warmed up fully it ran fine. What outside temps are we talking about here? When was the last time you changed your fuel filter?
 
Reply
Old Feb 13, 2009 | 10:06 AM
  #13  
Izzy351's Avatar
Izzy351
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Also, the stock pickup has that PITA auxiliary pickup duck-bill looking thing on the side. If it's leaky and the fuel gets below that level, it can suck air.
 
Reply
Old Feb 13, 2009 | 12:03 PM
  #14  
Khart's Avatar
Khart
Thread Starter
|
Freshman User
Joined: Feb 2009
Posts: 45
Likes: 0
Ford dealer is showing inline pump on frame and a tank pump. We did install the CPS with no change. Opened up the fuel filter lid and air farted out. Turn the key on and you can hear the inline pump continuously pumping and not shutting off (this is new). Unpluged inline pump and hear nothing from the pump tank.

This might explain the slight flutter from time to time running down the road. Starving for fuel.

Does anyone know if the tank has to be dropped or can it be changed with tank on?
 
Reply
Old Feb 13, 2009 | 12:28 PM
  #15  
Khart's Avatar
Khart
Thread Starter
|
Freshman User
Joined: Feb 2009
Posts: 45
Likes: 0
Just changed fuel filter

CPS on and no start and no change.

Ford is showing 2 pumps. One inline along frame and one in tank ($500.00). Turn the key on and can hear the inline one along frame running not shutting off. Unplug it inline pump and hear nothing coming from pump in tank. Opened up the fuel filter lid and air farted out, sucking air.

Izzy - PITA and duck-bill. What is this and where is it located.
 
Reply



All times are GMT -5. The time now is 07:05 AM.

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