94 ford f150 4.3ltr fuel question - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel Forum for discussion of the Ford F100, F150, F250, F350, Superduty and Diesel trucks.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 05-04-2010, 19:01   #1 (permalink)
Registered User
 
Join Date: May 2010
Posts: 2
94 ford f150 4.3ltr fuel question

Ok so this truck has been sitting for a while. it is fuel injected. So to start off bought new battery, solenoid, spark plugs, and belt. Also I dropped both tanks to drain fuel as it had been sitting. I thought to check the fuel pumps and have noticed neither pump works in the tank. the front(center) tank was completely dead. the rear tank atleast makes a click in pump but still doesn't work. So I assume both pumps are bad(both were sitting in old nasty gas). My questions are 1. Has this truck been sitting to long and will find that I am throwing my money into an endless pit? also If I buy lets say the front tank pump and just hook the front tank back up will the pump work or is there a safety sensor where I have to have both pumps hooked up? And last if I buy new pump and still isn't working what could be the problem of pump not working? Thanks Nathan
hagar44 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-04-2010, 19:09   #2 (permalink)
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 9,804
Re: 94 ford f150 4.3ltr fuel question

The fuel injectors might be sticking too. As long as you're doing the work yourself and you got it cheap enough, it would be something I'd do. You can use just one pump.Since you have them out, try tapping the motor when you try to power them up and see if they go. They may still need replacing but at least you'll know the system is working if you hook it back in and try with the ignition. They should run for a few seconds on every key to run position. We've had some of those trucks with 200,00 miles and still running good.
__________________
Bert
Bert is offline   Reply With Quote
Old 05-07-2010, 16:47   #3 (permalink)
Registered User
 
Join Date: May 2010
Posts: 2
Re: 94 ford f150 4.3ltr fuel question

ok so I have bought a fuel pump for the front tank. put it in and got the front tank mounted back. I put like 3 gallons of fuel in the tank and had the key turned on and looked back at whee the rear tank should be(its still dropped out of truck) and noticed that when the fuel pump kicks on the return line has fuel coming out of it. it isn't a steady stream. it almost seems like that when the line pressures up that is where it is bypassing to. I could be wrong though. Any thoughts? Also truck still won't run. Is there a place where you can unhook the fuel line near the injectors to see if fuel is getting pumped to that point? Any ideas would be great Thanks Nathan
hagar44 is offline   Reply With Quote
Old 05-07-2010, 20:12   #4 (permalink)
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 9,804
Re: 94 ford f150 4.3ltr fuel question

There should be a shraeder type valve in the fuel rail. I don't know what the fuel line diagram is like on that truck, but it could be the return line fron up front is a tee and feeds back to both tanks. That might be why the fuel is coming out the rear. Have you checked to see if it's getting spark?
__________________
Bert
Bert is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 18:37.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.