air in fuel lines f-250 7.3 diesel - Ford Truck Enthusiasts Forums



1999 to 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines SPONSORED BY:
Advertisement

air in fuel lines f-250 7.3 diesel

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-13-2010, 06:34 PM
boyler boyler is offline
New User
Thread Starter
 
Join Date: Jul 2008
Posts: 12
boyler is starting off with a positive reputation.
air in fuel lines f-250 7.3 diesel

Hi!
I've run out of fuel in my ford F250 7.3 diesel and now after refueling there is no posibility to start the engine.
Please tell me how to remove air from fuel lines properly.
I know that maybe this is silly and basic question but seriously I dont know how to do it. I was trying to find in this forum similiar thread but I didnt found.

thank you for any clues
Reply With Quote
  #2  
Old 01-13-2010, 07:35 PM
F350-6's Avatar
F350-6 F350-6 is offline
Post Fiend
 
Join Date: Mar 2007
Location: Texas
Posts: 25,904
F350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputation
The pump has lost it's prime. There's a chance you've also sucked debris up into the screens in the mixing chamber, so you may need to drop the tank soon and either clean the screens or do the intank mods.

To answer your question, filling the tank more than half way helps. Sometimes filling the fuel filter bowl (and replacing the lid) and cycling the key will help. Don't waste the batteries trying to start. The fuel pump is electric so turn the key on and listen to the pump. It will come on for 25 seconds, then shut off. Just cycle the key on for 25 seconds, then off, then back on again. You'll be able to hear the change in sound of the pump when it's primed.

Other options would be to disconnect the fuel line from the back side of the pump, stick a short hose on the pump and dip the other end into a container of fuel. Cycle the key several times to prime the fuel lines, then reconnect the factory line and cycle the key several more times. You can also blow compressed air at about 20 psi into the tank through the fuel filler neck. Wrap a rag around the blow nozzle to help pressurize the tank some and cycle the key. Don't make an airtight seal and don't over pressurize the plastic tank.
Reply With Quote
  #3  
Old 01-17-2010, 10:02 PM
newfordy newfordy is offline
Senior User
 
Join Date: Apr 2001
Location: Central Callifornia
Posts: 233
newfordy is starting off with a positive reputation.
Another thought/possibility

If you haven't solved the problem by now. Your problem might not be fuel related but oil. The hi-pressure oil pump resevoir may have run out by "priming" the fuel system. Resevoir is on top front center of engine. Oil level should be about 3/4 inch from top (remove plug to check).
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Replacing nylon fuel lines Mhintlian Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 0 10-19-2015 12:00 PM
92 F250 7.3 IDI Excessive Diesel Smell rogerpemberton Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 13 07-02-2014 08:52 AM
Bleeding Fuel Line sifox Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 16 05-04-2011 04:44 PM
air in fuel line sparky1207 1999 - 2003 7.3L Power Stroke Diesel 10 07-14-2009 07:58 PM
88 f250 7.3 diesel fuel pump muddermike Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 6 10-22-2005 06:07 AM


Go Back   Ford Truck Enthusiasts Forums >

Tags
250, 73, air, diesel, f250, ford, fuel, gas, line, lines, prime, remove, run, running, start, truck

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -5. The time now is 06:22 PM.


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. FordŽ is a registered trademark of the Ford Motor Company.