CP4 Implosion!!! CRAP! CRAP! CRAP!
50-60 miles pulling the trailer before unhooking it. Kept limping it along, roughly 180 miles, 4 hours kept driving it.
And, the most expensive parts are still the ones that fail.
Anyway, while my warranty is still in effect, until 200K, then I will leave it stock.
Obviously Ford would not be covering the pump, but would they deny everything else? (probably).
But, yes, I would imagine a non-stock type pump would void the warranty on the rest of the fuel system, and very likely the whole engine.
And, what makes the S&S prevention kit worth more than twice as much as one of the other kits that look identical and use the same fuel filter?
S&S kit is $400, identical looking kit I found for $180???
S&S actually has a video talking about that.
would it be much different than an aftermarket oil filter? Which theoretically, dealer should have to prove was the issue, if/when.
(and I get that dealers blame non factory parts as often as they can get away with it, no matter if the true cause or not).
I guess the real question is what are the odds you have fuel system problems, if the pump is no longer an issue. Might be worth the gamble,
even if still under warrantee.
S&S actually has a video talking about that.
https://youtu.be/6oqPzh7OlA4?si=iLUhLij0pNy2ywDs
would it be much different than an aftermarket oil filter? Which theoretically, dealer should have to prove was the issue, if/when.
(and I get that dealers blame non factory parts as often as they can get away with it, no matter if the true cause or not).
I guess the real question is what are the odds you have fuel system problems, if the pump is no longer an issue. Might be worth the gamble,
even if still under warrantee.
And, my luck on gambles like that isn't good.
Ford Trucks for Ford Truck Enthusiasts
And, the most expensive parts are still the ones that fail.
Anyway, while my warranty is still in effect, until 200K, then I will leave it stock.
You will have PLENTY of warning that the pump is failing with intermittent low fuel pressure codes until the pump completely fails, by then it would probably start leaking fuel and making terrible noises. In the mean time all the grindings from the cam would be captured by the return filter.
And, what makes the S&S prevention kit worth more than twice as much as one of the other kits that look identical and use the same fuel filter?
S&S kit is $400, identical looking kit I found for $180???
I don't particularly like the S&S lines, or the adapter on the pump, it looks like a weak spot and the lines look cobbled together, compared to the SPE kit which is finely machined billet with a really nice finished look to it, but in the end both kits do the job intended, the S&S return filter is hands down THE BEST, the SPE kit just looks better. If I were to do it again I would just do the S&S kit though since the SPE was a bit more than $400 plus the $160 for the S&S return filter kit. Like I said the SPE kit just looks better, more professional design. You get what you pay for, if S&S went the SPE route for the lines and fittings it would be a much more expensive kit.
This is what the SPE parts look like. All machined aluminum with an anodized coating. This is the return "filter" and a PITA to install, so I left it off. It will capture the larger pieces, but the fines that do the most HP damage would get past it until it fully clogs.
This is the S&S filter. As you can see the machining is not to the same level and the compression band on the fuel line looks pieced together. To the left of the oil cap is the SPE fuel line, and the middle fuel line on the filter is also part of the SPE kit, looks factory. The lines use fittings that are more professional looking, so overall it just looks better.
Where the S&S kit uses on line split into two that connects to the filter and then the pump, the SPE kit uses a splitter that attaches to the primary fuel line, and splits off a second line to the adapter under the FFR to feed it separately.
I keep thinking through both of the failures of the CP4 (on my 2011 and on my 2017). Yesterday, I finally had some time to do a little research. I keep records on everything including all of my fuel stops, where I fueled up, amount of diesel I put in etc. in a spreadsheet along with all my service work. My dealership has done all of the service work at the correct intervals on both of my Super Duties. One thing I did notice in common between my 2011 and 2017 failures is that just prior to both failures, I had the fuel filters changed. Back in June 2015 on my 2011 Super Duty, I had the fuel filters changed about 1 week before we drove from Austin, TX up to Estes Park, CO. That is about 2.5 day trip - around 1100 miles. The day after we arrived my fuel system failed. On my 2017, I had the fuel filters changed about a month before the failure (back in June) as we were getting ready for our trip to Montana. So my you can see where I am going here.... The common thread is that the fuel filters were changed and then I had a failure. I was reading in the 2017 Owners' Manual about changing the fuel filter and noticed the following sentence "Note: No special air purge is necessary after filter servicing. The fuel system purges the air in the filters." Then further down at the end of the installation instructions for the filters is bullet point number 3 "Switch the ignition on for 30 seconds and then switch the ignition off.Repeat this operation six times in a row to purge any trapped air from the fuel system."
Multiple people and the report I quoted indicated that air in the CP4 is major issue and can cause failure. So my question is... What if my dealership technician didn't repeat the on/off ignition procedure 6 times as indicated in the manual? Could this have been the cause of the issue? I would love for those of you more knowledgeable than me to weigh in on this...
Thanks!
would it be much different than an aftermarket oil filter? Which theoretically, dealer should have to prove was the issue, if/when.
(and I get that dealers blame non factory parts as often as they can get away with it, no matter if the true cause or not).
I guess the real question is what are the odds you have fuel system problems, if the pump is no longer an issue. Might be worth the gamble,
even if still under warrantee.
Although the dealer is not the one who approves or denies the warranty repair, the information they provide, or maybe the way they submit it, can make or break the approval. I experienced this when trying to get warranty approval for a headlight. One dealer submitted photos etc and eventually told me that Ford didn't approve replacement. I went to another dealer who got approval within 24 hrs.
I purge mine as follows: Key on and listen for the buzz. I donn't shut the key off till the buzz quits. (maybe, maybe not longer than 30 seconds.
I do this 8 times and then start it. Hits right away with no delay.
So it may just be plausible they are cranking it extensively trying to purge and start at the same timel
Start doing your own fuel filters. I always have.
I keep thinking through both of the failures of the CP4 (on my 2011 and on my 2017). Yesterday, I finally had some time to do a little research. I keep records on everything including all of my fuel stops, where I fueled up, amount of diesel I put in etc. in a spreadsheet along with all my service work. My dealership has done all of the service work at the correct intervals on both of my Super Duties. One thing I did notice in common between my 2011 and 2017 failures is that just prior to both failures, I had the fuel filters changed. Back in June 2015 on my 2011 Super Duty, I had the fuel filters changed about 1 week before we drove from Austin, TX up to Estes Park, CO. That is about 2.5 day trip - around 1100 miles. The day after we arrived my fuel system failed. On my 2017, I had the fuel filters changed about a month before the failure (back in June) as we were getting ready for our trip to Montana. So my you can see where I am going here.... The common thread is that the fuel filters were changed and then I had a failure. I was reading in the 2017 Owners' Manual about changing the fuel filter and noticed the following sentence "Note: No special air purge is necessary after filter servicing. The fuel system purges the air in the filters." Then further down at the end of the installation instructions for the filters is bullet point number 3 "Switch the ignition on for 30 seconds and then switch the ignition off.Repeat this operation six times in a row to purge any trapped air from the fuel system."
Multiple people and the report I quoted indicated that air in the CP4 is major issue and can cause failure. So my question is... What if my dealership technician didn't repeat the on/off ignition procedure 6 times as indicated in the manual? Could this have been the cause of the issue? I would love for those of you more knowledgeable than me to weigh in on this...
Thanks!
So, doubtful anyone would change the fuel filters without doing a good prime/purge.













