Fuel flow question
Thread Starter
|
New User
Joined: Oct 2010
Posts: 18
Likes: 0
From: N Fla
Fuel flow question
I am working on a 2002 E-350 with some low power issues and white smoke under load. I have checked fuel pressure at the plug on the left head and have over 45 psi KOEO. I also checked the flow and it seems to be a fast trickle, shouldn't I be seeing a significant flow from this test port?
Thank you, Bill
Thank you, Bill
Lead Driver
Joined: Jun 2004
Posts: 6,340
Likes: 588
From: Amarillo, TEXAS!
Fuel pressure needs to be checked at wide open throttle, under load. If it's only a trickle with the engine off, it's a pretty safe bet it will be low if it's tested the right way though.
Thread Starter
|
New User
Joined: Oct 2010
Posts: 18
Likes: 0
From: N Fla
That is what I suspected. Thanks for the quick reply PiKachu.
Thread Starter
|
New User
Joined: Oct 2010
Posts: 18
Likes: 0
From: N Fla
Yes, it does have the steel tank and was not aware that was a problem. I was leaning towards the pickup being broken,there is less than 1/4 tank of fuel, and was going to drop the tank anyway.
Would the steel tank in the Van have the same setup as the Trucks and benefit from the "Hutch mod"? I do not assume anything anymore LOL.
I did get the Van back together enough to check the fuel pressure running and it dropped to less than 24 psi, torque braking it for about 10 seconds. So that tells the story.
Thanks again, Bill
Would the steel tank in the Van have the same setup as the Trucks and benefit from the "Hutch mod"? I do not assume anything anymore LOL.
I did get the Van back together enough to check the fuel pressure running and it dropped to less than 24 psi, torque braking it for about 10 seconds. So that tells the story.
Thanks again, Bill
Lead Driver
Joined: Jun 2004
Posts: 6,340
Likes: 588
From: Amarillo, TEXAS!
Yeah, if it dropped that quick there's a restriction somewhere. AFAIK, the innards are essentially the same on the van. There should be a mixing chamber with a couple screens in it. That nonsense gets eliminated and replaced by an external filter with the Hutch mod.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
The van has a steel tank with some form of coating on the inside. I've heard the 2002 is different than the earlier SDs with the 7.3L, but I can't remember if it was the better one or the worse one. A number of members with steel tanks have had the inside coating flake off and clog the pick-up screen with stuff that looks like translucent cottage cheese.
Even if that's not the issue, it sounds like you're going to drop the tank to find out what it is. I'd get the Hutch Mod kit before dropping the tank... but I don't know how much I'd want to drive the truck while the fuel pressure is dropping like that.
It's possible your fuel line quick-disconnects seals have failed and the fuel pump is sucking air.
Even if that's not the issue, it sounds like you're going to drop the tank to find out what it is. I'd get the Hutch Mod kit before dropping the tank... but I don't know how much I'd want to drive the truck while the fuel pressure is dropping like that.
It's possible your fuel line quick-disconnects seals have failed and the fuel pump is sucking air.
Trending Topics
Elder User
Joined: Sep 2011
Posts: 979
Likes: 4
From: Vancouver
A reminder about fuel pump cooling-if the pump has run for awhile with reduced flow, the electrical windings and bearings can get hot, reducing length of life. The diesel flowing through the pump is what keeps it cool.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Thread Starter
|
New User
Joined: Oct 2010
Posts: 18
Likes: 0
From: N Fla
Thanks Tugley,Sparky for the additional input.
I do plan on dropping the tank for the hutch mod, however all kits I have seen advertised so far state their kits do not fit the E series due to different tank configuration. Looks like some phone calls are in order.
I also plan on replacing the pump, as I suspect in may have been damaged and it is the original one on top of that.
I do plan on dropping the tank for the hutch mod, however all kits I have seen advertised so far state their kits do not fit the E series due to different tank configuration. Looks like some phone calls are in order.
I also plan on replacing the pump, as I suspect in may have been damaged and it is the original one on top of that.
Thread
Thread Starter
Forum
Replies
Last Post
scubadiver
1999 - 2003 7.3L Power Stroke Diesel
3
Jul 23, 2015 05:27 PM
digicon
1987 - 1996 F150 & Larger F-Series Trucks
12
Feb 22, 2014 03:30 PM
cajunsuperduty
6.0L Power Stroke Diesel
32
Jun 29, 2013 10:12 PM
sainty333
Fuel Injection, Carburetion & Fuel System
5
Jan 2, 2007 02:58 PM