Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Same EFI problem

Thread Tools
 
Search this Thread
 
Old Jan 15, 2008 | 06:05 PM
  #1  
HMR-RSQ's Avatar
HMR-RSQ
Thread Starter
|
Freshman User
Joined: Jun 2007
Posts: 27
Likes: 0
Question Same EFI problem

Same EFI problem

<HR style="COLOR: #666666" SIZE=1><TABLE><TBODY><TR><TD vAlign=top width="100%">Ok guys, here goes again.
As long as I'm on the interestate and going 65mph no problems.
But let me run around town and have to push the truck to pull it'll start bucking.
New; FORD Parts;
front and rear pumps FORD OEM's complete assy's.
fuel switching canister, fuel filter
tank selector switch
both eec and fuel pump relays
tps
New tuneup parts, etc.

Can this truck run w/o the hi-pressure pump along the frame.
When I pulled the 5th wheel camper last it started this mess and smelled almost like it was leaning out. No cat on exhaust, so its not stopped up/clogged. It got so bad pulling the mountain that I had to stop and lock in 4lo to pull the last bit.
This is driving me crazy. Seems the hotter it gets (both ambient and eng. temps) it get's worse. I can back off on the throttle and it'll even out, but as soon as I'm back in it, it'll start back.
This one is kickin' my butt.
</TD></TR></TBODY></TABLE>
 
Reply
Old Jan 15, 2008 | 06:14 PM
  #2  
subford's Avatar
subford
Fleet Owner
20 Year Member
Photogenic
Photoriffic
Top Answer: 1
Joined: Aug 2005
Posts: 23,666
Likes: 301
From: Easton,Ks
I would tape a fuel pressure gauge to the windshield and if the pressure drops below 30 psi I would change the rail fuel pump. As you go to WOT the pressure should go up to near 40 psi.
 
Reply
Old Jan 15, 2008 | 06:17 PM
  #3  
HMR-RSQ's Avatar
HMR-RSQ
Thread Starter
|
Freshman User
Joined: Jun 2007
Posts: 27
Likes: 0
Can it still run normal with the rail pump lossing pressure?
 
Reply
Old Jan 15, 2008 | 06:27 PM
  #4  
subford's Avatar
subford
Fleet Owner
20 Year Member
Photogenic
Photoriffic
Top Answer: 1
Joined: Aug 2005
Posts: 23,666
Likes: 301
From: Easton,Ks
Originally Posted by HMR-RSQ
Can it still run normal with the rail pump lossing pressure?
No, the rail pump must put out at least 30 psi to keep the engine running.
 
Reply
Old Jan 15, 2008 | 06:33 PM
  #5  
HMR-RSQ's Avatar
HMR-RSQ
Thread Starter
|
Freshman User
Joined: Jun 2007
Posts: 27
Likes: 0
Its going to buddies shop that used to work for a Ford truck dealership. Hopefully he'll figure it out.. Thanks for the help!!!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
thedaddycat
Oil & Lubrication
1
Feb 27, 2008 06:12 AM
LostMayhem
Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150
6
Jan 9, 2008 12:17 AM
mharmsen
1997 - 2003 F150
6
Mar 23, 2007 03:22 PM
mharmsen
Michigan Chapter
1
Mar 16, 2007 08:20 AM
gsg1970
1999 - 2003 7.3L Power Stroke Diesel
10
Mar 14, 2007 04:19 PM




All times are GMT -5. The time now is 03:54 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