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  #1  
Old 11-03-2010, 11:44 PM
lt.co.11
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7.3 fuel leak

Hi, my boss has a 2002 f350 with a 7.3 in it, the prolbem is it is leaken fuel on top of the motor. Im not for sure what fuel issues they have or what uselly goes bad to cause it to leak. I dont know much about the 7.3, I have mailnly worked on my 6.0. Can someone shine some light on what direction to take so im not ripping the top half of the motor off for no reason. Thanks John
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  #2  
Old 11-04-2010, 12:31 AM
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Re: 7.3 fuel leak

Most likely the o-rings for the drain valve on the fuel bowl. Look at the back side of the fuel filter housing with the engine running or key on and look for drips. Other than that it could be any of the other fuel lines going into the fuel filter housing so look at them.
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Old 11-04-2010, 12:52 AM
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Re: 7.3 fuel leak

Just had to replace the fuel line that runs from the fuel bowl back to the rear of the head on the passenger side. It runs under the turbo and there is a metal clamp there that will rub a hole in the metal line. Good luck
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Old 11-04-2010, 03:17 AM
lt.co.11
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Re: 7.3 fuel leak

Ok, thanks at least thats a starting point.
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Old 11-04-2010, 03:35 AM
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Re: 7.3 fuel leak

Dealing with the same issue on my 01. Looks like my leak was from the fuel bowl cap gasket. I changed the filter and orings yesterday and it looks like it has stopped. I'll be keeping an eye on it though.
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Old 11-04-2010, 03:37 AM
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Re: 7.3 fuel leak

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Originally Posted by srswain View Post
Just had to replace the fuel line that runs from the fuel bowl back to the rear of the head on the passenger side. It runs under the turbo and there is a metal clamp there that will rub a hole in the metal line. Good luck
just had mine rub threw this spring, but it could also be orings. if its losing fuel fast id say line considering when mine wore threw you could almost follow where i went at about 25mph. slow id say orings.
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Old 11-04-2010, 01:16 PM
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Re: 7.3 fuel leak

Check the 2 lines on the passenger's side of the fuel bowl and 1 line on the driver's side of the fuel bowl. They have sleeves, not o-rings, that form the seal inside the line. Mine had rotted away and that's where my leaks were coming from. I believe they're referred to as Parker Fuel Sleeves.
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Old 11-04-2010, 01:40 PM
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Re: 7.3 fuel leak

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Originally Posted by FordCowboy View Post
Most likely the o-rings for the drain valve on the fuel bowl. Look at the back side of the fuel filter housing with the engine running or key on and look for drips. Other than that it could be any of the other fuel lines going into the fuel filter housing so look at them.

Thats where mine was leaking
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Old 11-04-2010, 01:54 PM
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Re: 7.3 fuel leak

mine leaked there a few years ago..caught by dealer was a very expensive repair for the 2 orings..

do it yourself cheap.....and easy
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Old 11-04-2010, 01:56 PM
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Re: 7.3 fuel leak

i got a fuel bowl repair kit from guzzle, should be here today. sick of the leaking mess, thought my clutch was heading south, then i smelled fuel...lol
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