Help if you had this problem
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Freshman User
Joined: Mar 2008
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From: Stroudsburg, PA
[QUOTE=sflem849]I think this was already covered, but there are two "filters" in the tank of a pickup. The first is the gross particle screen on the pickup foot and the second is the mixing chamber. They have some rather fine screens in there.
I would bet the air through the fuel lines into the tank has cleared up the screens enough to make it better, but not perfect.
Here is the link to the intake directions ITP provides. They have some pics in the directions that will help you see what I am talking about. If you take the mixing chamber out you have to put something in line to protect the fuel pump/operate as a gross decon of the fuel. I just used a cheap inline filter from NAPA. That is what the guys from Diesel Innovation do. (Dennis used to as well, but he has upgraded to a better (finer than the stock setup) filter)(quote)
Yes, thats what I wanted to hear, thats what I believe is causing my poor performance and miss. What method was used to install an inline filter to those new fuel lines with the quick connects and when removing the mixing chamber is it just replaced with a hose line to lay at the tanks bottom?
I would bet the air through the fuel lines into the tank has cleared up the screens enough to make it better, but not perfect.
Here is the link to the intake directions ITP provides. They have some pics in the directions that will help you see what I am talking about. If you take the mixing chamber out you have to put something in line to protect the fuel pump/operate as a gross decon of the fuel. I just used a cheap inline filter from NAPA. That is what the guys from Diesel Innovation do. (Dennis used to as well, but he has upgraded to a better (finer than the stock setup) filter)(quote)
Yes, thats what I wanted to hear, thats what I believe is causing my poor performance and miss. What method was used to install an inline filter to those new fuel lines with the quick connects and when removing the mixing chamber is it just replaced with a hose line to lay at the tanks bottom?
Locomotive breath
Joined: Jan 2006
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From: Mid Oh. Ponderosa
No Roger, you need some tubing the same dia. preferably s.s. and some fuel line that's diesel rated to run from the tank to the pump. Do a search on the in-tank mod. Look at the top of the page I think there's a link for common mods.
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From: Stroudsburg, PA
Originally Posted by DISLFVR
What Scott said, I just remembered my mix-chamber was removed when I did the in-tank and pre-pump mods. I use the in-line filter from NAPA I think #3003.
Posting Guru
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From: SE Wisco
Just use this setup for your instruction list.
http://guzzle.rbmicro.com/hutch.html
I would just run cheap NAPA inline filters until I had things cleaned up. I have less than $40 in my intank setup.
I used a hybrid of the Guzzle, ITP, and DI setups. I used the existing hard line between the pump and tank and just ran rubber line between the two. This requires more hose clamps and connections, but I think it is prettier.
Here is a quote on the filter ITP used to use.
and here is the whole darn thread, there is a lot to be learned about filters in there.
https://www.ford-trucks.com/forums/7...er-prices.html
http://guzzle.rbmicro.com/hutch.html
I would just run cheap NAPA inline filters until I had things cleaned up. I have less than $40 in my intank setup.
I used a hybrid of the Guzzle, ITP, and DI setups. I used the existing hard line between the pump and tank and just ran rubber line between the two. This requires more hose clamps and connections, but I think it is prettier.
Here is a quote on the filter ITP used to use.
Originally Posted by Izzy351
More details from FleetFilter:
Part Number: 33007
UPC Number: 765809330078
Principal Application: Mercedes-Benz Cars (89-95) - 5/16 in-line fuel filter - can be used wth gas or diesel
All Applications
Style: Fuel (Complete In-Line) Filter
Service: Fuel
Media: Wire Screen
Height: 4.280
Outer Diameter Top: 1.210
Outer Diameter Bottom: Closed
Nominal Micron Rating: 50
Here's what it looks like:
Part Number: 33007
UPC Number: 765809330078
Principal Application: Mercedes-Benz Cars (89-95) - 5/16 in-line fuel filter - can be used wth gas or diesel
All Applications
Style: Fuel (Complete In-Line) Filter
Service: Fuel
Media: Wire Screen
Height: 4.280
Outer Diameter Top: 1.210
Outer Diameter Bottom: Closed
Nominal Micron Rating: 50
Here's what it looks like:
https://www.ford-trucks.com/forums/7...er-prices.html
Posting Guru
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From: SE Wisco
Originally Posted by roger 922
Thats what I plan to modify now. A ford guy I just spoke to advised against it but it was a ford design that proved wrong. Does this technique prolong your injection filter life also? Do you know how they spliced into the fuel line and what they used to alter the mix chamber assembly ?
Why would he suggest against it??? I can only think of one reason and that is bc you eliminate the intank filter AND you do replace it OUT OF THE TANK...WHERE YOU CAN SERVICE IT!
It will help inj life bc you are not hammering as much air through them.
You splice into the hard line with 5/16 (?) fuel line and hose clamps. I just put my filter right before the pump.
You use brake line to get rid of the mixing chamber. Simple!
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From: Stroudsburg, PA
Originally Posted by c00nhunterjoe
i also cant see why, even if the fuel ate your tank, the truck would die after 45 minutes of driving? what did the inside of your tank look like? and why was the fuel pump condemed? the diag methods arent making much sense here
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Freshman User
Joined: Mar 2008
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From: Stroudsburg, PA
Thank you everybody for the great input on the fuel mixing chamber. I plan on retrofitting it at my earliest convenience. I hope this is the cause of my trucks poor performance and fuel milage (10 mpg) at total vehicle wieght 0f 7875.
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Of the next Riffraff East
Joined: Oct 2004
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From: Concord NC
What kind of tank did you replace it with? Will it do the same thing? If you think you still have debris in the tank that is sucking up to the pickup screen, you my get by just draining the tank to clear the junk out. It is a pity that you didn't know to do the intank mods while you were in the process of changing tanks.
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Freshman User
Joined: Mar 2008
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From: Stroudsburg, PA
Originally Posted by zx250
What kind of tank did you replace it with? Will it do the same thing? If you think you still have debris in the tank that is sucking up to the pickup screen, you my get by just draining the tank to clear the junk out. It is a pity that you didn't know to do the intank mods while you were in the process of changing tanks.
Laughing Gas
Joined: Jul 2003
Posts: 1,157
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From: Littleton, Colorado
As odd as it sounds, Ford put out a broadcast message to dealers on this problem. That's as far as it has gone. No TSB as of yet. Here's the service message Ford has sent to dealers on this problem:
Lack of Power, Trucks with Steel Tanks:
Some trucks may have a lack of power due to low fuel pressure from a plugged fuel filter or in-tank pickup tube, or restricted fuel lines. This could be caused by the steel tank lining becoming de-laminated/flaking off. If this occurs, the tank will need to be replaced, along with the plugged components. Be aware that using biodiesel with more than 5% concentration (B5) may cause this to happen. The replacement tanks do have a more resistant coating to help prevent this occurance, however Ford still recommends using no higher than B5 biodiesel. Broadcast Message 6865, 7103.
Austin
Lack of Power, Trucks with Steel Tanks:
Some trucks may have a lack of power due to low fuel pressure from a plugged fuel filter or in-tank pickup tube, or restricted fuel lines. This could be caused by the steel tank lining becoming de-laminated/flaking off. If this occurs, the tank will need to be replaced, along with the plugged components. Be aware that using biodiesel with more than 5% concentration (B5) may cause this to happen. The replacement tanks do have a more resistant coating to help prevent this occurance, however Ford still recommends using no higher than B5 biodiesel. Broadcast Message 6865, 7103.
Austin
Posting Guru
Joined: Jul 2007
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From: SE Wisco
So it isn't the ULSD, it is the Bio. There is a big different between those two.
I was going to say you should really do the intanks when you do the new tank. But now that I read the "notice" maybe you should not??? The part about clogged FUEL LINE(?!?!?) scares me a bit. I think I would want the filter as close to the pickup as possible in this case.
Oops, rethought. what does it matter!?! When it finally clogs your mixing chamber you will have to buy a whole new sending unit anyway. They do not sell components of the system. My newest thought is still do them. That way you will have a filter right outside the tank.
I was going to say you should really do the intanks when you do the new tank. But now that I read the "notice" maybe you should not??? The part about clogged FUEL LINE(?!?!?) scares me a bit. I think I would want the filter as close to the pickup as possible in this case.
Oops, rethought. what does it matter!?! When it finally clogs your mixing chamber you will have to buy a whole new sending unit anyway. They do not sell components of the system. My newest thought is still do them. That way you will have a filter right outside the tank.
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Freshman User
Joined: Mar 2008
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From: Stroudsburg, PA
Originally Posted by AustinS
As odd as it sounds, Ford put out a broadcast message to dealers on this problem. That's as far as it has gone. No TSB as of yet. Here's the service message Ford has sent to dealers on this problem:
Lack of Power, Trucks with Steel Tanks:
Some trucks may have a lack of power due to low fuel pressure from a plugged fuel filter or in-tank pickup tube, or restricted fuel lines. This could be caused by the steel tank lining becoming de-laminated/flaking off. If this occurs, the tank will need to be replaced, along with the plugged components. Be aware that using biodiesel with more than 5% concentration (B5) may cause this to happen. The replacement tanks do have a more resistant coating to help prevent this occurance, however Ford still recommends using no higher than B5 biodiesel. Broadcast Message 6865, 7103.
Austin
Lack of Power, Trucks with Steel Tanks:
Some trucks may have a lack of power due to low fuel pressure from a plugged fuel filter or in-tank pickup tube, or restricted fuel lines. This could be caused by the steel tank lining becoming de-laminated/flaking off. If this occurs, the tank will need to be replaced, along with the plugged components. Be aware that using biodiesel with more than 5% concentration (B5) may cause this to happen. The replacement tanks do have a more resistant coating to help prevent this occurance, however Ford still recommends using no higher than B5 biodiesel. Broadcast Message 6865, 7103.
Austin
Laughing Gas
Joined: Jul 2003
Posts: 1,157
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From: Littleton, Colorado
Originally Posted by sflem849
So it isn't the ULSD, it is the Bio. There is a big different between those two.
Austin