Fuel leaking from filter

[Gunfighter1]

After hooking up my heater core and starting the truck up i noticed a leak. First thought it was coolant but took a closer look and fuel is leaking from fuel filter. Pouring out at a pretty good rate to. The filter is new within the last 6 months and all the hoses that go into it are in there good and not loose. Can it be a bad seal on the filter? Should i replace it and see if it stops leaking. This CUCV is new to me so im still learning the ins and outs of it.

 

[dstang97]

That is a common problem. Do a search for spin on fuel filter

 

[davidkroberts]

Napa filter will probably be in stock but they will have to order the housing.

55.00 for filter and housing but you will need a 1"Npt thread to 3/8"Barb which you can get at home depot

 

[91W350]

You probably need a new filter base. I bought a couple on Ebay, but if I had it to do over, I would just convert to spin on filters. Less mess, better filter, less hassle. The topic has been hit several times over. Glen

 

[Stonepicker1]

Convert.....cheaper in long run for sure.

 

[markg]

After hooking up my heater core and starting the truck up i noticed a leak. First thought it was coolant but took a closer look and fuel is leaking from fuel filter. Pouring out at a pretty good rate to. The filter is new within the last 6 months and all the hoses that go into it are in there good and not loose. Can it be a bad seal on the filter? Should i replace it and see if it stops leaking. This CUCV is new to me so im still learning the ins and outs of it.

i have fixed them, take the water sensor apart in the middle of the housing and you will see a common size o-ring. the way i tested it was remove the filter, put temporary rubber fuel lines on the inlet and outlet of the housing, fire it up and watch where the fuel comes out.

 

[Armada]

Ditto. When they leak it's usually the at the water sensor.

 

[MuleMac01]

yep check the water sensor most of the time it leaks from there but you don't need the water sensor to run your truck.... or you can get a new fuel filter base off ebay

 

[Barrman]

I agree with the spin on conversion for ease of future maintenance, availability of replacement filters, security going down the road and simplicity. I got to add this though.

When I swapped over to a spin on last month. I noticed a small puddle under the filter area on the ground. I rechecked every fuel line and that the filter was on tight. I drove the truck around, couldn't feel any fuel anywhere but the puddle came back. I tightened the fuel line clamps more and tried to make the filter tighter on the base. I still couldn't feel any fuel or evidence of fuel. I also drove it and parked it over a clean spot again.

Another puddle showed up when I checked on it in an hour. Turns out I had hit the heater hose when changing out the filter and it was just loose enough to move and leak a little. A screw driver to both clamps fixed the problem. I just found it kind of funny that you were working on the heater and might have bumped the filter enough to leak. Since I was working on the filter and bumped the heater enough to leak.

 

[Gunfighter1]

Looks like im going to tackle the spin on filter conversion. Looks simple enough to do. i was reading here on this thread http://www.steelsoldiers.com/cucv/36435-my-cucv-spin-fuel-filter-mod.html How do you bleed the air out of the lines with that filter and what is the pink wire hes talking about attachine? I want to make sure i know what im getting into before i start taking stuff apart.

 

[Warthog]

The pink wire is the 12v supply wire that energizes the fuel shutoff on the injector pump.

It is talked about in the TM 9-2320-289-10 Operators Manual, The TM 9-2320-289-20 Unit Maintenance Manual and the TM 9-2320-289-34 Direct Support Manual.

 

[Gunfighter1]

Got it thanks, just took a look under the hood. Are the wires going into the original housing for the water in fuel gauge and what should i do with them when i take the original mount off?