08 LMM change fuel filter warning - Page 2 - Chevy and GMC Duramax Diesel Forum
07.5-10 LMM 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 #11 of 17 (permalink) Old 04-09-2019, 08:51 PM Thread Starter
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Just when I need more fuel it says change fuel filter?
Do you mean that after your fill up, or add fuel, then the problem occurs? Please explain.
I mean I don't notice a difference either way. It's just when I step on it going uphill. I found a kinked line today behind my turbo intake hose. Going to assume that's part of the problem and replace them. I put a hose clamp on and went uphill and no change fuel filter. Yet.....

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post #12 of 17 (permalink) Old 04-13-2019, 05:16 PM Thread Starter
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Replaced the fuel lines that were collapsed and still got the change fuel filter. Drive it with computer hooked up. Injectors 3-4 we're a little high but not out of range. Any ideas? Mobile mechanic is going to replace fuel pressure relief valve.

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post #13 of 17 (permalink) Old 04-21-2019, 08:21 PM
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I had the exact same problem last year. Rebuilt fuel filter head & replaced head lines. No change. Put a FASS flow enhancer on it and it hasnít done it since.


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post #14 of 17 (permalink) Old 05-07-2019, 08:31 PM
 
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I had the same issue only when I was towing, the supply hose on top of the tank was collapsing and i changed 4 filters on a trip before I started chasing fuel hoses.

I installed an AirDog...be warned your stock primer seals will leak after the lift pump is installed recommend replacing the seals while the truck is down for the lift pump.

Good luck.

2008 2500HD 4x4 CrewCab All stock (for now), Airdog Lift Pump
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post #15 of 17 (permalink) Old 05-07-2019, 09:15 PM Thread Starter
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[QUOTE=dl0310;12156141]I had the same issue only when I was towing, the supply hose on top of the tank was collapsing and i changed 4 filters on a trip before I started chasing fuel hoses.

I installed an AirDog...be warned your stock primer seals will leak after the lift pump is installed recommend replacing the seals while the truck is down for the lift pump.{/QUOTE]

I replaced the pressure relief valve with a racing valve and haven't had the problem again. I did however get low oil pressure while stopping after pulling up hill for a while. That should be fun.

Thank you

Last edited by Hook'em_Horns!; 05-07-2019 at 09:18 PM.
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post #16 of 17 (permalink) Old 05-08-2019, 06:01 PM
 
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LOL sounds like a typical GM...fix one problem to find another at least it is not a Ford, they just circle the problem with a blue oval. Good luck on figuring out your oil pressure problem.

2008 2500HD 4x4 CrewCab All stock (for now), Airdog Lift Pump
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post #17 of 17 (permalink) Old 05-08-2019, 08:02 PM
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Just found this. The hose is kinked and a little soft. Added a hose clamp to straighten it out. Could this be the issue?
That is likely your issue. Mine was pretty bad but I've yet to pull with mine (goose that is) which is why I think i've tip-toed around getting the p0087/fuel filter codes people mention on here.

Check out that link. I posted some decent info on hoses that might be of help.

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