Large Fuel Leak..

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Dec 22, 2010 | 10:30 AM

#16

mq1shooter

Elder User

Joined: Feb 2009

Posts: 522

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From: Lawson, Missouri

Wow, with that much filling the valley...Maybe removal of the Fuel Bowl assembly and the leak will be pretty evident...

Dec 22, 2010 | 10:31 AM

#17

thebig350

Tuned

Joined: Feb 2010

Posts: 339

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From: Texas

Just curious, but when you changed your filter, did you take off your FPR to clean the screen? Also, is there any play if you grab the filter housing and try to move it? I don't think it likely that it could be your banjo bolt or fuel pump related if you have not had any leaking there previously. One more ??, does your fuel bowl drain valve have the tube running off of it down to the bottom of the block, and is it in the closed position?

Dec 22, 2010 | 11:14 AM

#18

tekguy4

Thread Starter

Junior User

Joined: Dec 2006

Posts: 67

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Quote:

Originally Posted by thebig350

no I didnt clean FPR
and yes it the have the drain tube and is in off position

any good write ups on line on fuel bowl removal?

Dec 22, 2010 | 11:16 AM

#19

Iallwork

Elder User

Joined: Sep 2009

Posts: 860

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From: Grantsburg,WI

Take off the plastic shield (if you haven't done that already) Then take a trouble light and shine it down there. If everything is soaked you need to somp the fuel up with rags. Stuff them down there with a stick or screw driver till it's dry(be carefull not to knock off any electrical plugs or wires) then start the motor and see if you can see which general area its coming from. We would like to say it is a certain thing that always goes bad, but there are to many things that it could be. You don't want to just start buying parts and changing them. It may be something cheap like a hose or a o ring. It may be something more expensive like the fuel pump or canister. No sense in spending money that you don't need to, unless you have lots of money then just go buy a new truck. I've waiting to see if the new 6.7's are just going to be another 6.0 night mare. I'm still lovin my 7.3

Dec 22, 2010 | 11:23 AM

#20

Iallwork

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Joined: Sep 2009

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From: Grantsburg,WI

The fuel bowl is not to bad. It looks intimidating but it's not too bad. I've had mine off about three times. I'm not a professional mechanic. but I do pretty good. If I were you I would try to see if you can isolate where its coming from a little better before you take it apart just because it probably doesn't leak when its not running. So it might be easier to see the general area where it's coming from when the truck is running. Just want to know if it's coming from the canister area or from the fuel pump area.

Dec 22, 2010 | 11:31 AM

#21

Iallwork

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Joined: Sep 2009

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From: Grantsburg,WI

Don't know how far you have gotten in to it, but after you take big shied off. I think there is a little metal shield over the fuel lines that just clips on. take that off and thats where you start soaking up fuel and looking in front of the fuel pump and in back of it. Bright light and rags. Be careful not to smash the electrical connection on top of your altenator while you are working on it.

Dec 22, 2010 | 11:32 AM

#22

RÖENTGEEP

FOREIGN GURU

Joined: Jul 2006

Posts: 7,655

Likes: 7

From: Celaya, Gto. MX

Quote:

Originally Posted by tekguy4

sorry, I have been getting home late last few nights, the fuel filter cap o-ring is not leaking

by the time I start the truck and come around the valley is full and I cant see leak.. but its been in dark by myself, I am going to be digging into friday during day

I dont mind going ahead and replacing more stuff than I need as the truck is 14 years old and just about to break 200K...

I would like to just go ahead and order any seal that the fuel filter housing may have (besides the cap o-ring -)

thanks for the replies

When you changed the fuel filter, did you clean the bottom of the cannister?, how it was? did it had any type of corrosion or little pine holes?, if so, maybe there is the problem. good luck.