Fuel filter head leaking. - Chevy and GMC Duramax Diesel Forum
04.5-05 LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 17 (permalink) Old 04-15-2019, 09:25 AM Thread Starter
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Fuel filter head leaking.

A few months ago, I replaced the seals in the fuel filter head assembly. Now I have a leak from under the primer that I can't seem to stop.
I've taken it off two or three times to make sure there were no cracks, no dirt and the o-rings wasn't crooked.
I've been able to slow it down but not stopped.
Is there something I'm just missing?

Bob Anderson
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post #2 of 17 (permalink) Old 04-15-2019, 10:19 AM
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Just buy a new filter and head. They come as one unit, about $135. No one can tell where your filter head might be leaking without seeing it.
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post #3 of 17 (permalink) Old 04-15-2019, 10:24 AM Thread Starter
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That's kinda what I figured. I can't see where the leak is. I just didn't want to spend the money unwarranted.
Thanks

Bob Anderson
From my Galaxy S9+ using Tapatalk.

From the Texas Panhandle
LLY GMC CC SWB 2500 HD 4x4
Bully Dog intake (existing)
Resonator deleted
EGR deleted
PCV re-routed
MBRP 3" downpipe
FASS LP & filters

PPE Race Fuel Valve
Stock rims with 265/75R16 Cooper S/T Maxx
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post #4 of 17 (permalink) Old 04-15-2019, 01:03 PM
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I was in the same boat. I just decided to remove the factory fuel filter instead. It seems to be working just fine.
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post #5 of 17 (permalink) Old 04-15-2019, 01:20 PM Thread Starter
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I've thought about doing that as well.

Bob Anderson
From my Galaxy S9+ using Tapatalk.
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From the Texas Panhandle
LLY GMC CC SWB 2500 HD 4x4
Bully Dog intake (existing)
Resonator deleted
EGR deleted
PCV re-routed
MBRP 3" downpipe
FASS LP & filters

PPE Race Fuel Valve
Stock rims with 265/75R16 Cooper S/T Maxx
rta1197 is offline  
post #6 of 17 (permalink) Old 04-15-2019, 03:03 PM
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For $135 Iíd prefer to have a new fuel filter head and a way to prime as opposed to deleting it...
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post #7 of 17 (permalink) Old 04-15-2019, 03:06 PM
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He has a way to prime it.
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2006 LBZ S.B.C.C. LT 4X4
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post #8 of 17 (permalink) Old 04-15-2019, 03:14 PM
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Guess I missed that from his post. Didnít mention his setup and I donít see it via tapatalk. Still deleting the filter head makes little sense over $135... the stock setup provides a great way to separate water from the fuel. But itís not the only way so to each their own...
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post #9 of 17 (permalink) Old 04-15-2019, 03:30 PM
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Quote:
Originally Posted by Shanester View Post
He has a way to prime it.
Until the lift pump fails....then it's the tow truck shuffle.
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post #10 of 17 (permalink) Old 04-15-2019, 03:31 PM
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Fass is in his signature. It makes perfect sense to me. Cleans up the engine bay a little bit and lift pumps also provide a great way to separate water from the fuel. I do agree with you on the "to each their own" though...
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2006 LBZ S.B.C.C. LT 4X4
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