Fuel Filter System

[conway]

I have install the lubrication fuel filter in a pre OEM setup for additional filtration. I have noticed that every couple of weeks the fuel system loses prime and I have to 'pump' the filter to get the truck started. Appreciate feedback on if this is a normal occurance or do I need to go looking for a pin hole leak. Visual inspection shows nothing. The fuel lines are soft, as expected, since I have no fuel lift pump. Is that the answer, do I need a fuel lift pump?

Thanks in advance for any help.

[BozDMAX]

Not normal.

I plumbed my secondary fuel filter post OEM and have never lost the prime on it in 20K+ miles. It sounds like we have the same system from Greg Landuyt.

I think I would suspect the large o-ring in the OEM filter, since that seems to be the weakest link in the system everytime I change filters. It has helped to remove the right fender well liner because the access is so much better. About a year ago I replaced the standard plastic anchors on the well liner with blind nuts (I guess that is what you call them - shaped like a squat "C" and they pinch over the sheet metal with a threaded nut on the side away from the liner) so now it takes about 5 minutes to pull the liner.

With your filter pre-OEM, there is a chance it will load up much faster if you have much crud in your fuel - it is going to catch everything. With things post-OEM, I have found 10K to be a good interval for the OEM and 20K for the finer filter. Last change at those intervals both filters looked about equally loaded, but with room to spare for more junk.

[jsmiracle]

I have the same system, but setup is post OEM for the same reasons as stated above. I'd also consider the fuel line connections.....mabe break and reestablish each one. Basically, uninstall/reinstall system. Good Luck.

I've had mine on for about 5k miles with no indications of trouble.

Jim M.