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One thing everbody should remember is the frame rail mounted filter installation. I recently did mine and had a fuel pressure issue. I replaced it and found that under moderate acceleration (1/3-1/2 throttle) I would drop in fuel pressure to roughly 35-40psi. But I could not feel a problem in the way the truck ran.
I talked to Grampy Jim on here and he told me that you must make sure the threads are cleaned and lubed with grease or oil. And to make sure the rubber ring on the fuel pump is lubed to. It is very easy to suck air on this filter unit. For those who do not have a fuel pressure guage you will never know if you are sucking air or losing fuel pressure because the engine will not show signs of fuel starvation until an injector(s) are gone. There is no sign of power loss either.
I was panicking thinking I had a leak or issue with a fuel pump or injector going out. I removed the fuel filter and redid it 3 times. Finally got the fuel pressure stable.
Just a for warning and word of advice.
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2003 F-250SD XLT X-Cab short box March 03 6.0L Torque shift, manual 4x4 superwinch hubs, 121,000 miles,315/75/16 BF Goodrich mud terrains, autometer boost/fuel psi/tranny temp, AFE 4" straight pipe, tire clearance and guage photos
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