I need help dudes. I was changing the fuel filters in my 03 6.0 and found a broken O-ring in the 'fuel bowl' TOP 4 micron filter housing. The o-ring is about 1/2" (NOT the cover O-ring). If anybody can verify where it goes, if it's an OEM part or best yet, send me a parts diagram for this housing/regulator I would really be grateful.

My AutoEngenuity program says my pumps is running 99.9% and my fuel pressure at the housing tap is 50 PSIG. I "THINK" the O-ring is letting fuel bypass but need advie or a drawing to confirm.

Thanks in advance !!!!!

 

Picture of said O-ring please?

It may be the O-ring from the inside of the old filter.

Look inside the old filter, there should be a back o-ring right at the top.

Measure your fuel pressure at WOT in 3rd gear, unless you have the proper bypass tool for checking 6.0 fuel pressure.

 

YOU were dead on my friend. Except I found more.......

Apparently the last time the sdealer serviced it they crushed the filter in. It didn't line up in the notches and I found that the plunger (stem) was broken off and rattling around inside my old filter

THANKS for your time !!!

 

I am so tired of hearing about dealership hacks...they make ALL the dealer techs look bad.

Sorry to hear about that.