Go Back   Ford Truck Enthusiasts Forums > Misc. > Fuel Injection, Carburetion & Fuel System
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 03-28-2012, 10:17 PM
packratF350's Avatar
packratF350 packratF350 is offline
Senior User
 
Join Date: May 2004
Posts: 125
packratF350 is starting off with a positive reputation.
Fuel Injection flooding out?

Hi all once again!

Got a new problem for you guys to help me figure out. What would make a FI engine act like its flooding out and dying after a short run on the freeway?

Details:
1994 F-350 351W (just overhauled this winter)
has new TPS, ICM(?).
Dual exhaust dumps right before the tires
new filters in tanks, new fuel filter on frame rail
All fuel lines have been opened and blown out from the tank to the engine compartment fitting near firewall.
Fuel pumps hold good pressure when tested.

symptoms:
smells like its running rich most all the time
after a short hiway run @ 70MPH it will stumble and die when returning to surface streets.
fuel smell near engine sometimes, but no obvious puddles or leaks anywhere.

may be related?:
when on a longer hiway run, I can't use the FWD tank for a long period without the engine stumbling and cutting out or popping at times. But I can swap to the rear tank for a bit then run the FWD tank again for a while. driving up hills it seems to be worse, but I'm in the panhandle of TX right now..good grief!

I am having to drive this truck for work long distances. While I dont expect a vast fuel range, it would be nice if I could go a couple hundred miles on 20 gallons of gas lol. Anyone have an idea on this one?
__________________
1988 Ford F350 Centurion dually crew cab 460/c6 (Gone, R.I.P.)
1972 F250 single cab 4x4 wrecker/ yard dog. 360/4spd/posi (I miss this one!)
'94 F-350/5.8l/5 speed/Dually SOLD
'79 F-150 4x4
Reply With Quote
  #2  
Old 03-30-2012, 09:00 AM
subford's Avatar
subford subford is online now
Post Fiend
 
Join Date: Aug 2005
Location: Easton,Ks
Posts: 17,322
subford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud of
Sounds like you may have two problems:
1. Bad FPR.
2. Bad rear fuel pump (FDM).
__________________
95 F150 302 4R70W EB EX-CAB
94 F53 460 E4OD COACHMEN SANTARA RV
83 F150 Flare Side 351W AOD
77 F250 351M-2V NP 435/4 Speed 4X4
subford@gmail.com
Bill K, Kansas Chapter
Reply With Quote
  #3  
Old 03-31-2012, 08:59 PM
packratF350's Avatar
packratF350 packratF350 is offline
Senior User
 
Join Date: May 2004
Posts: 125
packratF350 is starting off with a positive reputation.
I am going to replace the FPR as soon as I can, since you are the second one to suggest that as a cause. Thank you.
__________________
1988 Ford F350 Centurion dually crew cab 460/c6 (Gone, R.I.P.)
1972 F250 single cab 4x4 wrecker/ yard dog. 360/4spd/posi (I miss this one!)
'94 F-350/5.8l/5 speed/Dually SOLD
'79 F-150 4x4
Reply With Quote
  #4  
Old 04-01-2012, 10:06 PM
packratF350's Avatar
packratF350 packratF350 is offline
Senior User
 
Join Date: May 2004
Posts: 125
packratF350 is starting off with a positive reputation.
Ok I changed the FPR out...no change...I am at a loss as to whats going on here, anyone have another idea?
__________________
1988 Ford F350 Centurion dually crew cab 460/c6 (Gone, R.I.P.)
1972 F250 single cab 4x4 wrecker/ yard dog. 360/4spd/posi (I miss this one!)
'94 F-350/5.8l/5 speed/Dually SOLD
'79 F-150 4x4
Reply With Quote
  #5  
Old 04-12-2012, 01:24 PM
Bluegrass 7 Bluegrass 7 is offline
Post Fiend
 
Join Date: Sep 2006
Posts: 5,048
Bluegrass 7 has a good reputation on FTE.Bluegrass 7 has a good reputation on FTE.
Excess fuel comes about from;
1. Excess fuel pressure.
2. Faulty fuel regulator, allowing excess pressure or diaphram leaking fuel into the intake.
3. Leaking injectors.
4. Faulty map sensor.
5. Ox sensors not working causing open loop fuel operation.
6. Blocked/restricted return line back to the tank, would raise fuel pressure.
It has to be one or more of these areas.
good luck.
Reply With Quote
  #6  
Old 04-26-2012, 09:32 PM
jade79 jade79 is offline
Elder User
 
Join Date: Dec 2003
Posts: 734
jade79 is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by Bluegrass 7 View Post
Excess fuel comes about from;
1. Excess fuel pressure.
2. Faulty fuel regulator, allowing excess pressure or diaphram leaking fuel into the intake.
3. Leaking injectors.
4. Faulty map sensor.
5. Ox sensors not working causing open loop fuel operation.
6. Blocked/restricted return line back to the tank, would raise fuel pressure.
It has to be one or more of these areas.
good luck.
Don't forget a bad coolant temp sensor causing the ECU to think the engine is cold causing a "choke" enriched mixture. The best thing to do is pull the codes. Some local parts stores will do it for free.
Reply With Quote
  #7  
Old 02-24-2014, 09:52 PM
07terry 07terry is offline
New User
 
Join Date: Feb 2014
Posts: 7
07terry is starting off with a positive reputation.
what about a 1988 FI 351W flooding and when u give it fuel to clear it up it looks and acts just like the old carb engines put in new cap rotor plugs and wires, temp sensor andair filter thermostat all help is apreciated from a wounded warrior who it will take me a while to check or get someone to check for me
Reply With Quote
  #8  
Old 02-24-2014, 09:57 PM
07terry 07terry is offline
New User
 
Join Date: Feb 2014
Posts: 7
07terry is starting off with a positive reputation.
plz help i have a 88 f-150 351W that acts like a carb engine also my gauges on both tanks arent working one shows empty the other over full and i have changed the thermostat, temp sensor temp solenoid plugs wires rotor and cap also air filter i am a wounded warrior so it will take me a while to check the trouble shooting and thx again it floods and clears up when u give it some gas but has gas fumes and rich exhaust
Reply With Quote
  #9  
Old 03-07-2014, 11:03 PM
LxMan1's Avatar
LxMan1 LxMan1 is offline
Moderator
 
Join Date: Dec 2001
Location: Louisville,Ky.
Posts: 22,272
LxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant future
Check the vacuum line going to the fuel pressure regulator and make sure it has no fuel in it. If it does, then the diaphragm is bad and the regulator needs replaced.

Also make sure that the vacuum line going to the MAP sensor is connected and not dry rotted.
__________________
Jimmy- FTE Moderator

88 5.0 LX Mustang
63 F100 351W/C6

Reply With Quote
  #10  
Old 03-09-2014, 05:49 PM
Conanski's Avatar
Conanski Conanski is online now
Post Fiend
 
Join Date: Jun 2006
Location: Ottawa, Ontario
Posts: 20,719
Conanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud of
The E in EFI stands for electronic so step 1 when diagnosing a problem is pull the codes.
__________________
Paul (Conan) O'Brien

1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
1996 Kawasaki ZX11D, 2004 Honda 599, 2008 Kawasaki KLR650
Reply With Quote
Old 03-09-2014, 05:49 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Flooded carburetor Jfitzgerald 1961 - 1966 F-100 & Larger F-Series Trucks 15 10-23-2014 09:07 AM
97 powerstroke surges and missing under load onesr 1994.5 - 1997 7.3L Power Stroke Diesel 27 09-07-2014 08:38 AM
fuel leak from super camper special djfins 1973 - 1979 F-100 & Larger F-Series Trucks 5 03-29-2014 06:05 PM
Fuel System and Exhaust problems. 1986 f150 AWorley 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 10 11-18-2012 09:34 AM
2150 Carb Flooding when warm AdamJeff Fuel Injection, Carburetion & Fuel System 3 01-14-2004 10:40 AM


Go Back   Ford Truck Enthusiasts Forums > Misc. > Fuel Injection, Carburetion & Fuel System

Tags
150, 1987, 1997, 42, 60, 88, engine, expedition, f150, f350, flooded, flooding, floods, fooding, ford, fuel

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 10:47 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup