LOST JEEPS :: View topic - Fuel Filter Head Question

I cannot provide a neat clean answer to your question about running it pending receipt and installation of the new filter head. Best I can say:
1. your no start was almost certainly related to the leaky fuel heater element which induces air into the top of the filter head resulting is poor or not delivery of fuel to the engine hence GDE's warning.
2. you are in an area where the fuel heater is probably needed to keep running unless the vehicle can be garaged when parked or not parked in the open long so unplugging the element and packing the hole with something to prevent leaking may not be a good option BUT
3. continuing to run with the leak means more air in the filter head and a small risk of fire.
If you have any options that let you not drive the vehicle until the new filter head is installed I'd recommend using those options. If you absolutely have to drive it and it cannot be garaged and the hole packed then I'd bleed the fuel head every day to minimize the air in fuel risk.

FYI when you get the new unit it has a new filter and WIF sensor installed (save your old WIF just in case) and the wiring comes with 2 sets of wires (don't ask me). To assemble the pigtail - look at your existing wires and match the new wires as closely as possible based on size (colors won't match); thread the new wires back thru the new plug based on that size match and secure with the blue plastic clip; undo battery; cut the old wires and splice in the new ones (I used marine grade butt connectors with heat shrink tubing - rosin core solder and heat shrink or quality electrical tape work too); plug in and reconnect battery.

can you tell me the model number and brand-name for my 06 libby? I've hit many walls and want to change out leaky oem one,and a lift pump to go in the tank, i see people use kennnedy, can't find it and i believe new ffm is prevent :juggle:

Quote:

Redesigned Fuel Filter Head kit - 68043089AA with filter and wire\plug adaptor
Wiring Adapter Plug - 68043086AB
Fuel Filter - 52129238AA (NAPA: FIL 3647, WIX: 33647)

Cummins intank lift pump
DCJ (P)52121447AD
CARTER P76148M
AIRTEX E7181M

AIRTEX in-line lift pump, E8251 3-5psi
FACET in-line lift pump, 40109

Can be found on eBay

pictorial showing the replacement to the upgraded filter head:
viewtopic.php?f=5&t=64260

gmctd wrote:

Quote:

thats the cats booty! thank you so much, I'm a little confused though the ffm picture in your link looks like the 1 i have now, 2nd generation? it was change at the dealer 11/2 years ago, does the 2nd gen leak as well?i thought provent was the proper replacement
:ALONE:

Can a 2n gen leak? Of course any fuel filter assembly can leak (filter not tightened enough, inner filter gasket left on so doubled up on that inner gasket hence filter won't fully seat, primer pump seal blown, bleed screw not tight or fitting base damaged, hose clamps not tight, etc). Proper related question can 2n gen filter head get air? Yes (see filter not seated but more likely one or both of the quick disconnects in the fuel supply line back by the tank is sucking air).

guys thank you so much for support! cleared up a lot of things,i do have the 2nd generation ffm so I'm doing the in tank pump to start,will post piks when i get started

Author:	fatweasel [ Sun Jan 11, 2015 8:38 am ]
Post subject:	Fuel Filter Head Question
So I have been unable to start the Jeep since Thursday morning when it was really cold here in Michigan. Was thinking gelled fuel in the filter or lines might be the culprit. Rolled her into the garage overnight and got the temperature above 30 degrees Fahrenheit. When i was priming the fuel filter I noticed a pretty good leak at the right electrical connection on the right side of the filter head (when looking from the front of the jeep). I think this is the connection for the fuel filter heater. The heater plug looks a little fried - as I have sen in some photos posted here. Would a failure in this circuit prevent the engine from starting? Can I run the engine with the heater unplugged until I can get a new upgraded filter head? Still can't get the engine to start...

Author:	GreenDieselEngineering [ Sun Jan 11, 2015 9:34 am ]
Post subject:	Re: Fuel Filter Head Question
Order the new part asap. Allowing the fuel pump to eat air from the leak will eventually damage fuel system hardware and get very expensive. You could degrease the heater circuit connection and fill with epoxy, jb weld or something to block the air path into the fuel supply in the meantime.

Author:	fatweasel [ Sun Jan 11, 2015 10:30 am ]
Post subject:	Re: Fuel Filter Head Question
A few more cranks this morning and the Jeep is alive! I was really worried about cranking with no start and damaging the CP3 pump. Ordered the next generation filter head with new heater plug harness. Should be here within a week. Any issues driving a week in the current configuration?

Author:	gmctd [ Sun Jan 11, 2015 12:25 pm ]
Post subject:	Re: Fuel Filter Head Question
If it's already leaking: This illustrates catastrophic failure of the heating element connector and internal heater element Further: viewtopic.php?f=5&t=80722 Also, this should partially answer the question someone had about transferring the KJ Fuel Temp Sensor to the Cummins fuel manager: the KJ sensor de-clips from it's assigned position in the heater puck, and can be inserted into suitable hole in the Cummins cannister with temp-sensitive RTV for temp-duty service until correct connections can be made to the Cummins sensor

Author:	papaindigo [ Sun Jan 11, 2015 1:33 pm ]
Post subject:	Re: Fuel Filter Head Question
I cannot provide a neat clean answer to your question about running it pending receipt and installation of the new filter head. Best I can say: 1. your no start was almost certainly related to the leaky fuel heater element which induces air into the top of the filter head resulting is poor or not delivery of fuel to the engine hence GDE's warning. 2. you are in an area where the fuel heater is probably needed to keep running unless the vehicle can be garaged when parked or not parked in the open long so unplugging the element and packing the hole with something to prevent leaking may not be a good option BUT 3. continuing to run with the leak means more air in the filter head and a small risk of fire. If you have any options that let you not drive the vehicle until the new filter head is installed I'd recommend using those options. If you absolutely have to drive it and it cannot be garaged and the hole packed then I'd bleed the fuel head every day to minimize the air in fuel risk. FYI when you get the new unit it has a new filter and WIF sensor installed (save your old WIF just in case) and the wiring comes with 2 sets of wires (don't ask me). To assemble the pigtail - look at your existing wires and match the new wires as closely as possible based on size (colors won't match); thread the new wires back thru the new plug based on that size match and secure with the blue plastic clip; undo battery; cut the old wires and splice in the new ones (I used marine grade butt connectors with heat shrink tubing - rosin core solder and heat shrink or quality electrical tape work too); plug in and reconnect battery.

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Author:	fatweasel [ Sat Jan 17, 2015 7:15 am ]
Post subject:	Re: Fuel Filter Head Question
Thanks everyone for the advice and information. Got the new filter head installed on Thursday this week - only drove about 80 miles with the leaking unit. Connected fattest wire (green) from the new plug to the fattest witre (red) on the Jeep. Jeep is back on the road.

Author:	highironcrd [ Thu Jan 22, 2015 11:59 am ]
Post subject:	Re: Fuel Filter Head Question
papaindigo wrote: I cannot provide a neat clean answer to your question about running it pending receipt and installation of the new filter head. Best I can say: 1. your no start was almost certainly related to the leaky fuel heater element which induces air into the top of the filter head resulting is poor or not delivery of fuel to the engine hence GDE's warning. 2. you are in an area where the fuel heater is probably needed to keep running unless the vehicle can be garaged when parked or not parked in the open long so unplugging the element and packing the hole with something to prevent leaking may not be a good option BUT 3. continuing to run with the leak means more air in the filter head and a small risk of fire. If you have any options that let you not drive the vehicle until the new filter head is installed I'd recommend using those options. If you absolutely have to drive it and it cannot be garaged and the hole packed then I'd bleed the fuel head every day to minimize the air in fuel risk. FYI when you get the new unit it has a new filter and WIF sensor installed (save your old WIF just in case) and the wiring comes with 2 sets of wires (don't ask me). To assemble the pigtail - look at your existing wires and match the new wires as closely as possible based on size (colors won't match); thread the new wires back thru the new plug based on that size match and secure with the blue plastic clip; undo battery; cut the old wires and splice in the new ones (I used marine grade butt connectors with heat shrink tubing - rosin core solder and heat shrink or quality electrical tape work too); plug in and reconnect battery. can you tell me the model number and brand-name for my 06 libby? I've hit many walls and want to change out leaky oem one,and a lift pump to go in the tank, i see people use kennnedy, can't find it and i believe new ffm is prevent

Author:	thermorex [ Thu Jan 22, 2015 12:15 pm ]
Post subject:	Re: Fuel Filter Head Question
Kennedy lift pump is an in-line pump and not a tank one. Google Kennedy diesel. You'll find the website.

Author:	gmctd [ Thu Jan 22, 2015 1:30 pm ]
Post subject:	Re: Fuel Filter Head Question
Quote: can you tell me the model number and brand-name for my 06 libby? I've hit many walls and want to change out leaky oem one,and a lift pump to go in the tank, i see people use kennnedy, can't find it and i believe new ffm is prevent Redesigned Fuel Filter Head kit - 68043089AA with filter and wire\plug adaptor Wiring Adapter Plug - 68043086AB Fuel Filter - 52129238AA (NAPA: FIL 3647, WIX: 33647) Cummins intank lift pump DCJ (P)52121447AD CARTER P76148M AIRTEX E7181M AIRTEX in-line lift pump, E8251 3-5psi FACET in-line lift pump, 40109 Can be found on eBay pictorial showing the replacement to the upgraded filter head: viewtopic.php?f=5&t=64260

Author:	highironcrd [ Thu Jan 22, 2015 2:33 pm ]
Post subject:	Re: Fuel Filter Head Question
gmctd wrote: Quote: can you tell me the model number and brand-name for my 06 libby? I've hit many walls and want to change out leaky oem one,and a lift pump to go in the tank, i see people use kennnedy, can't find it and i believe new ffm is prevent Redesigned Fuel Filter Head kit - 68043089AA with filter and wire\plug adaptor Wiring Adapter Plug - 68043086AB Fuel Filter - 52129238AA (NAPA: FIL 3647, WIX: 33647) Cummins intank lift pump DCJ (P)52121447AD CARTER P76148M AIRTEX E7181M AIRTEX in-line lift pump, E8251 3-5psi FACET in-line lift pump, 40109 Can be found on eBay pictorial showing the replacement to the upgraded filter head: viewtopic.php?f=5&t=64260 thats the cats booty! thank you so much, I'm a little confused though the ffm picture in your link looks like the 1 i have now, 2nd generation? it was change at the dealer 11/2 years ago, does the 2nd gen leak as well?i thought provent was the proper replacement

Author:	papaindigo [ Thu Jan 22, 2015 4:07 pm ]
Post subject:	Re: Fuel Filter Head Question
The 2n gen OEM fuel filter head has a blue fuel heater plug on right front side of head as viewed from the front. If yours was replaced 1.5 years ago by the dealer it's almost certainly 2n gen. Can a 2n gen leak? Of course any fuel filter assembly can leak (filter not tightened enough, inner filter gasket left on so doubled up on that inner gasket hence filter won't fully seat, primer pump seal blown, bleed screw not tight or fitting base damaged, hose clamps not tight, etc). Proper related question can 2n gen filter head get air? Yes (see filter not seated but more likely one or both of the quick disconnects in the fuel supply line back by the tank is sucking air). Is the provent the proper replacement? No the provent has nothing to do with fuel rather it's something that can be installed in the CCV to intake line to capture oil before it goes thru the intake system.

Author:	gmctd [ Thu Jan 22, 2015 5:04 pm ]
Post subject:	Re: Fuel Filter Head Question
highironcrd wrote: gmctd wrote: Quote: can you tell me the model number and brand-name for my 06 libby? I've hit many walls and want to change out leaky oem one,and a lift pump to go in the tank, i see people use kennnedy, can't find it and i believe new ffm is prevent Redesigned Fuel Filter Head kit - 68043089AA with filter and wire\plug adaptor Wiring Adapter Plug - 68043086AB Fuel Filter - 52129238AA (NAPA: FIL 3647, WIX: 33647) Cummins intank lift pump DCJ (P)52121447AD CARTER P76148M AIRTEX E7181M AIRTEX in-line lift pump, E8251 3-5psi FACET in-line lift pump, 40109 Can be found on eBay pictorial showing the replacement to the upgraded filter head: viewtopic.php?f=5&t=64260 thats the cats booty! thank you so much, I'm a little confused though the ffm picture in your link looks like the 1 i have now, 2nd generation? it was change at the dealer 11/2 years ago, does the 2nd gen leak as well?i thought provent was the proper replacement As viewed from front: Left connector larger than right connector = original head Left connector smaller than right connector = upgraded head

Author:	WWDiesel [ Thu Jan 22, 2015 8:40 pm ]
Post subject:	Re: Fuel Filter Head Question
papaindigo wrote: Can a 2n gen leak? Of course any fuel filter assembly can leak (filter not tightened enough, inner filter gasket left on so doubled up on that inner gasket hence filter won't fully seat, primer pump seal blown, bleed screw not tight or fitting base damaged, hose clamps not tight, etc). Proper related question can 2n gen filter head get air? Yes (see filter not seated but more likely one or both of the quick disconnects in the fuel supply line back by the tank is sucking air). Pap is right, there can always be air inleakage without a in-tank lift pump! If you install an in-tank lift pump, any air inleakage leaks in the entire system will immediately become visible fuel leaks that can be quickly identified... With a in-tank lift pump, the whole system will be under ~14 psig positive pressure instead of the injection pump having to suck the fuel, and any air if you have leaks, all the way from the tank through all the fittings, filters, etc... The slip on "O ring" fittings were designed for positive pressure on gas vehicles, NOT for the suction side of any fuel pump no matter the location! Some have cut them out and replaced them with new hose and screw clamps... Cummins in-tank lift pump DCJ (P)52121447AD CARTER P76148M AIRTEX E7181M

Author:	highironcrd [ Fri Jan 23, 2015 8:40 am ]
Post subject:	Re: Fuel Filter Head Question
guys thank you so much for support! cleared up a lot of things,i do have the 2nd generation ffm so I'm doing the in tank pump to start,will post piks when i get started

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Author:	gmctd [ Fri Jan 23, 2015 11:03 am ]
Post subject:	Re: Fuel Filter Head Question
highironcrd wrote: guys thank you so much for support! cleared up a lot of things,i do have the 2nd generation ffm so I'm doing the in tank pump to start,will post piks when i get started Click here: http://www.auerbach.ca/kj/lift_pump/