Fuel pump replacement
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Fleet Mechanic
Joined: May 2010
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From: West by God Virginyuh
Fuel pump replacement
So, at 285k indicated, over 320k actual miles (oversized tires), I’m replacing my fuel pump as a preventative measure...plus my OEM pump is starting to show signs it’s getting pretty weak in terms of fuel pressure...drops under 60psi at anything other than idle.
After putting the new pump in the HFCM is there anything special I need to do to prime it other than cycling the key? I assume it’ll take more than the 3 cycles after a filter change.
After putting the new pump in the HFCM is there anything special I need to do to prime it other than cycling the key? I assume it’ll take more than the 3 cycles after a filter change.
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Fleet Mechanic
Joined: May 2010
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From: West by God Virginyuh
Cool, thanks!
Over the last couple weeks I’ve seen mine drop to 55 a few times, whereas when I first put the pressure gauge in it would only go down to 57.
The whole reason for my concern was that at a full throttle run (yep, tuned, Innovative Xtreme Street tune) mine worked its way down to 45...hopefully this new Racor pump keeps it up higher.
Over the last couple weeks I’ve seen mine drop to 55 a few times, whereas when I first put the pressure gauge in it would only go down to 57.
The whole reason for my concern was that at a full throttle run (yep, tuned, Innovative Xtreme Street tune) mine worked its way down to 45...hopefully this new Racor pump keeps it up higher.
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Fleet Mechanic
Joined: May 2010
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From: West by God Virginyuh
Will do...they make the OEM pump for Ford so hopefully good to go. Will know in about 30 minutes 
And...what a mess! Definitely took a diesel bath. 😂
Note to self...don’t do this with a full fuel tank. 🤦♂️
And...what a mess! Definitely took a diesel bath. 😂
Note to self...don’t do this with a full fuel tank. 🤦♂️
Fleet Mechanic
Joined: Jul 2018
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From: Jacksonville Florida
You got that Wright. You put a smile on my face with that, after a bad day. Not meaning anything hateful, but it was funny. Should have mention to prepare to get wet. 
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Fleet Mechanic
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From: West by God Virginyuh
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Fleet Mechanic
Joined: May 2010
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From: West by God Virginyuh
Soooo...what’s the verdict? Well, at least fuel volume-wise, apparently I should’ve just left well enough alone. The new pump seems to allow pressure to drop slightly faster than my 300k mile pump I just took out did. 🤦♂️ Guess it’s fortunate I drive like a little old lady...mostly. 😬
As for longevity and not leaving me stranded by the side of the road, well...I guess I’ll try to convince myself this pump will last while my other one was about to crap out... 😂
As for longevity and not leaving me stranded by the side of the road, well...I guess I’ll try to convince myself this pump will last while my other one was about to crap out... 😂
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Fleet Mechanic
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From: West by God Virginyuh
I bought the Excursion with 85k miles on it, so it’s possible something was done with injectors before me, but I seriously doubt it. It seemed as stock as could be when I got it from the dealership. I know at some point someone did something with the regulator as when I installed a blue spring kit 5 years ago it seemed like someone had attempted to “solve” a leak with silicone. 🤦♂️As far as I know everything fuel-wise is stock except for the PCM and FICM tunes I’ve added.
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From: Texas
I bought the Excursion with 85k miles on it, so it’s possible something was done with injectors before me, but I seriously doubt it. It seemed as stock as could be when I got it from the dealership. I know at some point someone did something with the regulator as when I installed a blue spring kit 5 years ago it seemed like someone had attempted to “solve” a leak with silicone. 🤦♂️As far as I know everything fuel-wise is stock except for the PCM and FICM tunes I’ve added.
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Fleet Mechanic
Joined: May 2010
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From: West by God Virginyuh
That’s what I figured, but are they enough for the pressure to drop down to...or below...45psi with a good running stock pump?
Bismic has SRL+ (and I’d assume FICM tuning), but only drops to 50 at full throttle.
Soooo...is my gauge reading correctly? Is my new Racor fuel pump flowing less volume than the 300k mile pump I pulled out? Are the seals in the pressure regulator bad? Is the foot in my tank breaking apart? Will I actually have the discipline to go trail running today in the cold?
A lot of questions need to be answered... 😉
Bismic has SRL+ (and I’d assume FICM tuning), but only drops to 50 at full throttle.
Soooo...is my gauge reading correctly? Is my new Racor fuel pump flowing less volume than the 300k mile pump I pulled out? Are the seals in the pressure regulator bad? Is the foot in my tank breaking apart? Will I actually have the discipline to go trail running today in the cold?
A lot of questions need to be answered... 😉