Fuel filter problem "again"! - Ford Powerstroke Diesel Forum
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Old 12-13-2012, 09:08 AM
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Fuel filter problem "again"!

Ok, so in the spirit of preventative maintenance, I changed out the fuel filter on my '99 7.3. Went to Autozone and got their filter. The cap was different than the one on it, but it fit ok. Started and drove ok. Fast forward about a week later. We are out in Dallas at night and I smell diesel. Pull over into parking lot and there is diesel pouring out under the truck. Shut it down, use whatever tools are avail to get it off, dump fuel all over ground (expensive fuel, i might add) put it back on. Start truck- still spraying fuel. Refit again. Truck starts then BAM!! gasket fails altogether and that's that. Spend night in truck - walk to Autozone for new filter the next am. New new filter is different from old new filter- has 1" square socket fitting in center- easier to torque down. Put new filter on. Fast forward two weeks. Last night- get home- back truck into horse paddock to offload hay and I smell diesel again- fuel again pouring out from under truck. WTF?!? Is there something wrong with the FPR (and I don't even know where that is on this truck) or am i just having very bad luck with my fuel filters. Called mechanic and he says that the "other filter" might be clogged and causing the primary filter to get over pressurized. I don't think so. I'd think if the inline filter was clogged the pressure would be down not up, but what do I know. Any ideas?? Please??
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Old 12-13-2012, 03:00 PM
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Check the drain on the back of the filter housing. I had mine leak like that same issue just all of a sudden without changing the filter.
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Old 12-13-2012, 04:42 PM
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these trucks only have 1 fuel filter stock.
i hope you saved the cap from when you first changed the fuel filter.
that cap is like 20 bucks from ford lol. i would go with only wix/ motorcraft fuel filters. thats my opinion im sure others feel different.
you need to cover the new gasket with diesel before you snug it all down.
when you changed the fuel filter did you empty the fuel bowl by using the drain valve? if you did you might be leaking from the fuel drain valve.
i would spray it all down and get it clean then start the truck and look.

you mentioned the fpr. you could pull the two torx bolts out and make sure the spring is centered in the housing.
make sure you take the bolts out evenly, they can easily strip out in the housing. same when you tighten it back down.
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