Ford 83-94 6.9 and 7.3L General Discussion of 83-94 6.9 and 7.3 Liter Ford Diesels

IP not filling with fuel after pump adjustment

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  #11  
Old 12-12-2013, 08:32 PM
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3/8 rubber hose that connects to the top of the pump on the top of the engine
 
  #12  
Old 12-12-2013, 08:59 PM
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Disconnected the return line, how much fuel should I be seeing at the connector on the hardline, there's barely any fuel build up.. Also appreciate the advice guys! I'm getting my flatbed on it Sunday and trying to get this b$&ch up and going before then and it seems I'm getting closer to getting it back up and running
 
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Old 12-12-2013, 09:02 PM
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replacing the lift pump could also work, they are a regular thing to need replacing quite often
 
  #14  
Old 12-13-2013, 02:56 PM
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Is it simple to replace? I'm going to do the ATF trick, I don't know how I messed up something that seems simple, I blame my dad and grandpa...both like to tinker even if it was fine haha
 
  #15  
Old 12-13-2013, 03:00 PM
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It's simple enough, just lining it up right to go back in can be tricky
 
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Old 12-14-2013, 07:06 PM
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So crackin the lines, I start on the right front closest to the cab? finally got the time to work on it again..

---AutoMerged DoublePost---

Originally Posted by 4x4manonbroke
empty your fuel filter and fill it with atf .. its thicker and will lube pump .. helps to draw fuel through the IP .... and while cranking ... foot to floor will help a bit also ..
So checked the filter,full of fuel...BUT took the cap from the shrader valve and pressed it to see if any sort of air or fuel came out and I got nothing..It seems like theres no pressure building up to send fuel to the injection pump,no fuel coming out of the hard lines and very small build up of fuel in the IP..I adjusted to just a quarter turn instead of the 2 flats I originally adjusted it too. Theres no sort of primer on these pumps is there?
 

Last edited by haiden66; 12-14-2013 at 07:06 PM. Reason: Automerged Doublepost
  #17  
Old 12-14-2013, 07:52 PM
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Now you are pressing in the valve, while the motor is cranking over correct? Other wise you won't get anything out of the valve
 
  #18  
Old 12-14-2013, 08:19 PM
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Yeah,we have the valve open while turning it over, should I be seeing fuel coming out when turning it over?
 
  #19  
Old 12-15-2013, 10:52 AM
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Yes you should, supposed to see a certain amount over a set time period as well, so it seems like you are getting no pressure, Have you changed the lift pump, or better yet. How much fuel is in your tank?
 
  #20  
Old 12-15-2013, 11:18 AM
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Little under half a tank. I was told a lift pump might not be my problem,I just had it replace along with everything else about a month ago. The shop that fixed it has a mobile mechanic, might have them come out and take a look.
 


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