2nd Gen Non-Engine/Transmission Fuel Tank filter

[rdraves]

I have a 2002 with about 300k, with a new FASS DPRP pump I am running 10 to 12 psi. Dealer thinks it might be a partially plugged tank filter. Any comments?

 

[JLandry]

Where are you measuring the fuel pressure?



Has the fuel pressure been verified with a second gauge?



If the in-tank screen is indeed clogged, you can take it out for cleaning or eliminate it as a problem altogether by installing Vulcan draw straw or a tank sump.



Regards,



John L.

 

[Bob4x4]

Perfo a vacuum test to confirm

 

[JLandry]

Perfo a vacuum test to confirm

Yes... good idea.



Install a vacuum gauge on the suction side of the pump and verify the vacuum reading is less than 6 in/hg AT FULL THROTTLE WITH NO LOAD (this is per the factory service manual). Anything higher indicates a restriction somewhere prior to the pump (kinked or pinched fuel line, plugged tank module, clogged tank module screen, etc. ).



John L.