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

Fuel Problems

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Old Jan 27, 2012 | 05:15 PM
  #1  
Crazy's Avatar
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Diesel Bomber
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From: Reddick,Fl.
Default Fuel Problems

My truck been loosing it fuel prime every so offing it not all time i maybe able go 3 days or it maybe 5 mins after shut the truck

Like left work on monday drove 2/10s mile stop get fuel come back out truck loose it prime reprime the system drove home got up next morning started right up went out at lunch go get something no start loose it prime again reprime system again drove 2 days no problem get this morning start and die had to reprime system

I have look and look can't fine no fuel leak, the return lines kit is 2 months old are new all the injector are dry new fuel filter one peace spin on filter also new fuel housing


Does the fuel pump have chuck valve in them to stop it from draining back ?

Ok looking any idles where to and look for need get this fix fast wife going be driving the out state in few days don't need this breaking down on her


The truck does run fine go down the road and it idling

The truck was not low on fuel they had 1/2 tanks in them

Thanks for any help anybody can gave me

Bruce
 

Last edited by Crazy; Jan 27, 2012 at 05:19 PM.
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Old Jan 27, 2012 | 08:42 PM
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just outa curiosity, check your oil..
 
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Old Jan 27, 2012 | 08:46 PM
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Originally Posted by DieselCrawler
just outa curiosity, check your oil..
Yes i did not making any oil i thought maybe the LP was leaking into the crack case
 
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Old Jan 28, 2012 | 12:48 AM
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no idea then bud.
 
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Old Jan 28, 2012 | 10:07 PM
  #5  
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Default Update

Well think found the fuel problem, I tink it was my starter being the problem not spinning over fast enough went to the store today and came out and didn't spin over at all had truck tow home ( think god for AAA ) did some testing batterys are and was load testing good had 13.5 v in both so took the meter and work my way back to the start had 12v all way to starter then put amp meter on it bingo. So got me to thinking truck wasn't spinning over fast enough so my think was LP couldn't keep up with the fuel and the IP was suck all the full out filter. so fine out here with in next few days here been banging head up against a wall looking for fuel leak or place it may have been sucking air

What you guys think sound about right
 
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Old Jan 29, 2012 | 07:33 PM
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probly just not spiining over fast enough. a new starter does wonders.
 
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Old Jan 30, 2012 | 07:47 AM
  #7  
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Default Other update

well it wasn't starter it had air in the system again. but i think i made have found the problem the last cap on driver side was leaking couldn't see just looking at it in till i on top of the motor and could see fuel setting on the back of the block. Looks like when put the return lines on that pinch one of the O-Rings so put 2 new O-Rings on so i hope this fix my problem and think the starter was also part of the problem
 
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