HPFP detailed FACTS
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Lead Driver
Joined: Sep 2003
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From: Albuquerque
HPFP detailed FACTS
With the high profile of the HPFP failures in this forum...how about some facts. Feel free to ask questions, but I'll start it off.
The answers can come from a FORD service manual...but I just don't have one...like many other folks. Maybe a FORD certified tech?
Factual Questions:
1. Why does the HPFP total replacement cost 10k?
2. What is actually involved in a total replacement?
3. Why is it not possible to replace Bosch fuel pump only (if failure occurs)?
4. How much does a Bosch fuel pump cost?
5. What do the 2 fuel filters do in the 6.7L fuel setup?
6. How does the HPFP setup work?
...etc...etc...etc...
I think this type of info will be very valuable to those current and future owners of the 2011 and 2012 SD with 6.7L PSD. Heck...knowledge is power...and that is why we are here on FTE.
Thanks!
biz
The answers can come from a FORD service manual...but I just don't have one...like many other folks. Maybe a FORD certified tech?
Factual Questions:
1. Why does the HPFP total replacement cost 10k?
2. What is actually involved in a total replacement?
3. Why is it not possible to replace Bosch fuel pump only (if failure occurs)?
4. How much does a Bosch fuel pump cost?
5. What do the 2 fuel filters do in the 6.7L fuel setup?
6. How does the HPFP setup work?
...etc...etc...etc...
I think this type of info will be very valuable to those current and future owners of the 2011 and 2012 SD with 6.7L PSD. Heck...knowledge is power...and that is why we are here on FTE.
Thanks!
biz
Postmaster
Joined: Apr 2009
Posts: 3,839
Likes: 2
With the high profile of the HPFP failures in this forum...how about some facts. Feel free to ask questions, but I'll start it off.
The answers can come from a FORD service manual...but I just don't have one...like many other folks. Maybe a FORD certified tech?
Factual Questions:
1. Why does the HPFP total replacement cost 10k?
Because when the HPFP begins it's death march, it sends metal fragments downstream from the pump, through the injectors and through the return lines to the fuel tank. The contaminants are then picked up in the fuel tank and sent to the DFCM where they show up in the filter. The tank has to be removed and thoroughly cleaned. The DFCM, the secondary filter, the commom rails, all 8 injectors, the fuel pressure sensor, the fuel control solenoid, the HPFP and the return lines are all replaced
2. What is actually involved in a total replacement?
answered above
3. Why is it not possible to replace Bosch fuel pump only (if failure occurs)?
Answered above..but one of the 6.7 design engineers got involved with my dispute. He sent his evaluation of my breakdown to the Ford Dearborn offices with a recommendation to warranty the repairs. In an email, he told me that although Bosch demands all parts be replaced, if he was paying the bill himself, he would only replace the HPFP and the return lines. He would reassemble the engine and hope for the best. He did say that I would need to be prepared to troubleshoot injector issues one cylinder at a time.
4. How much does a Bosch fuel pump cost?
Varies by dealer but the retail I saw was around $1200. I have seen internet dealer prices on this site of around $900.
5. What do the 2 fuel filters do in the 6.7L fuel setup?
They do not stop emulsified water...they do stop the metal debris from the HPFP. I keep hearing that the GM has a better fuel filter system...but have not seen this from a trusted source.
6. How does the HPFP setup work?
Fine, as long it gets a steady supply of 460 scar rated diesel fuel with no emulsified water
...etc...etc...etc...
I think this type of info will be very valuable to those current and future owners of the 2011 and 2012 SD with 6.7L PSD. Heck...knowledge is power...and that is why we are here on FTE.
Thanks!
biz
The answers can come from a FORD service manual...but I just don't have one...like many other folks. Maybe a FORD certified tech?
Factual Questions:
1. Why does the HPFP total replacement cost 10k?
Because when the HPFP begins it's death march, it sends metal fragments downstream from the pump, through the injectors and through the return lines to the fuel tank. The contaminants are then picked up in the fuel tank and sent to the DFCM where they show up in the filter. The tank has to be removed and thoroughly cleaned. The DFCM, the secondary filter, the commom rails, all 8 injectors, the fuel pressure sensor, the fuel control solenoid, the HPFP and the return lines are all replaced
2. What is actually involved in a total replacement?
answered above
3. Why is it not possible to replace Bosch fuel pump only (if failure occurs)?
Answered above..but one of the 6.7 design engineers got involved with my dispute. He sent his evaluation of my breakdown to the Ford Dearborn offices with a recommendation to warranty the repairs. In an email, he told me that although Bosch demands all parts be replaced, if he was paying the bill himself, he would only replace the HPFP and the return lines. He would reassemble the engine and hope for the best. He did say that I would need to be prepared to troubleshoot injector issues one cylinder at a time.
4. How much does a Bosch fuel pump cost?
Varies by dealer but the retail I saw was around $1200. I have seen internet dealer prices on this site of around $900.
5. What do the 2 fuel filters do in the 6.7L fuel setup?
They do not stop emulsified water...they do stop the metal debris from the HPFP. I keep hearing that the GM has a better fuel filter system...but have not seen this from a trusted source.
6. How does the HPFP setup work?
Fine, as long it gets a steady supply of 460 scar rated diesel fuel with no emulsified water
...etc...etc...etc...
I think this type of info will be very valuable to those current and future owners of the 2011 and 2012 SD with 6.7L PSD. Heck...knowledge is power...and that is why we are here on FTE.
Thanks!
biz
Answers in red
Regards
More Turbo
Joined: Jan 2012
Posts: 739
Likes: 151
From: USA
New to the forum. I’m trying to learn as much as possible before I pull the trigger an on new SD.
Rickatic is there a way to add one or two fuel filters in between the pump and the injectors that could eliminate metal fragments going downstream from the pump, through the injectors and through the return lines to the tank?
As stated I’m new to the 6.7L arena.
Rickatic is there a way to add one or two fuel filters in between the pump and the injectors that could eliminate metal fragments going downstream from the pump, through the injectors and through the return lines to the tank?
As stated I’m new to the 6.7L arena.
More Turbo
Joined: Jan 2012
Posts: 739
Likes: 151
From: USA
How much pressure does the fuel system develop?
I was looking at the:
XX-Fuel Two Filter Universal Mount 10200
or
XX-Fuel Universal Single Filter Mount 10100
They have fuel filters at 8 Microns and 2 Microns. I’m not sure if these would be fine enough to filter metal.
I was looking at the:
XX-Fuel Two Filter Universal Mount 10200
or
XX-Fuel Universal Single Filter Mount 10100
They have fuel filters at 8 Microns and 2 Microns. I’m not sure if these would be fine enough to filter metal.
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Elder User
Joined: Apr 2010
Posts: 754
Likes: 0
Can someone else confirm this, I believe it was around 30,000 psi downstream of the HPFP?
More Turbo
Joined: Jan 2012
Posts: 739
Likes: 151
From: USA
Well, I did find a system that is rated at 23,000 psi. Now this system is for the Duramax 6600, which is in the 2500HD/3500 pickup trucks. Now they are running the new Bosch high-pressure common-rail fuel injection system.
I sent the gentleman and email about this systems capabilities and adapting it to work on the 6.7L PS.
I sent the gentleman and email about this systems capabilities and adapting it to work on the 6.7L PS.
More Turbo
Joined: Jan 2012
Posts: 739
Likes: 151
From: USA
I've emailed and will call the gentleman in the morning to see if they have a newer kit for their 6.6Ls. I will also ask if their kits can handle the 6.7L PS pressures. What I have found is that the 6.6L does make 29,000 psi on the new motors.
If not I will continue to look around.
If not I will continue to look around.
Senior User
Joined: Jun 2011
Posts: 151
Likes: 0
From: Needles CA KOA
Isnt the top fuel filter on the 6.7 between the HPFP and the injectors?
Sounds like the best solution to this whole mess is a filter element/system that does the job. Maybe thats to simple a concept.
Sounds like the best solution to this whole mess is a filter element/system that does the job. Maybe thats to simple a concept.
Elder User
Joined: Apr 2010
Posts: 754
Likes: 0
I've emailed and will call the gentleman in the morning to see if they have a newer kit for their 6.6Ls. I will also ask if their kits can handle the 6.7L PS pressures. What I have found is that the 6.6L does make 29,000 psi on the new motors.
If not I will continue to look around.
If not I will continue to look around.