Everyone says my 2012 would eat fuel pumps and turbos. Here we are in 2024 and it still has the original turbo and fuel pump. My friend with the Dodge, however, has gone through 3 sets of head gaskets, a tranny, and a front differential.
@@huh0123 I have a friend who hotshots his F350 and has over 600k on his 6.7 with no fuel pump issues. He uses fuel additives with lubricity and Ctane boosters like I do and he’s trying to see a million before a new truck. Probably another 4 years or less for him.
A few tips for you 6.7 owners who don't want a failed CP4. 1. Use an alcohol free fuel additive in EVERY fill up. Opti-lube is top tier. 2. Change your fuel filters every other oil change or 10,000 miles 3. Drain your water separator weekly. 4. Only fuel up at high traffic stations. 5. When you turn your key ON, PAUSE for 3-5 seconds before cranking the engine over. This will ensure positive pressure on the cp4 buckets. What makes them rotate is a vacuum condition. Reason the duramax had so many failures, no lift pump.
Your top tier fuel additives have Fuel demulsifiers( separates water/moisture from the fuel). The additives that have the alcohol helps water make it past the filter water separator.
two failure modes: roller stops rolling or roller rotates perpendicular to cam lobe. either way, metal friction creates wear. Doesn't seem like it's a fuel lubricity problem otherwise any CP3 would eat itself the same way as there are no rollers or lifters in that pump. Frozen rollers sometimes have rust which means water in the fuel. Lifter rotation is just a crap shoot, it may or may not happen. Shit-ass design. Bosch deserves a class action lawsuit...
The pump itself isn’t all that horrible, it’s the fuel we run is the U.S. that kills them. Ultra low sulfur fuel doesn’t have the lubricity the cp4 needs to be reliable. The dcr is a far better design for our fuel though.
@@nathandevine552 I agree. Unfortunately the 6.7 powerstroke was designed around the cp4, and the valley isn’t wide enough to accommodate the cp3. That’s why nobody ever provided a cp3 conversion for the powerstroke like you could get on a duramax or Cummins. The dcr pump from S&S is your only option to ditch the cp4 on the 6.7 powerstroke
@@jorrick66 I've often wondered if a few ounces of sulfur rich gear oil to a tank of diesel could save the pump on a otherwise deleted engine as I'm sure it would screw up a dpf
having torn down well over 700 of these shits i can safely say that they're unreliable, the worst part is that it can look 110% minty and sometimes they'd still seize up on the test bench
I'm so sick of hearing about this damn pump. Change your filters, try to buy clean fuel and drive the damn thing. That's what I did for 180k miles with no issues.
EVERY REPAIR ON FORD TRUCK = CAB OFF. Inform ford of a process improvement by advocating for a hoist lift point on top of the cab or at the four corners. Replace alternator = cab off Oil change = cab off Replace serpentine belt = cab off ... = cab off
@Pitcrw6 I believe that most diesel engines, at least those in pickup trucks, have that same fuel pump which is why so many different diesel engines have similar failures!!! If you buy a used one, you may be well advised to at least replace that pump with an upgraded version! You may also want to have a good diesel mechanic inspect the oil in the crankcase to determine if the pump has already failed and started end metal particles throughout the engine, in which case, plan on buying a new motor or long block crate motor!!! If you’re really lucky, you might know where there’s a donor motor that would be a better overall engine and start over “fresh”!!!!
Just curious before I take mine to the dealership. What would cause loss of power? Won’t go over 15mph or 2500rpm and eventually left me stranded on a hill. When in park and neutral, it will rev up over 2500rpms.
My 2014 is at the dealership now getting a cp4 installed at 89k miles ....i have been running hotshots EDT in the fuel also ...im concerned about the lift pump possible being involved in my catastrophic bill im about to get ....had a 92 f250 with the 7.5 at 227k miles and im sure depressed about my truck ...FML
Do any of your videos explain how to get the housing off ? I got a screw broken off in the housing and I can’t get it out so I’m going to replace the housing.
So what was the actual failure? You said you didn't find metal on the screen so you didn't expect to see any damage and then you say maybe you will do a "bad one" in the future. So was this pump still good and there was something else that failed? Just looking for some clarity here on this video
I think it was replaced to prevent catastrophic fuel system failure when it would inevitably fail as they all do and when they do you will open your wallet wide as replacing the fuel system injectors lines pump HP rails regulator and pressure sensor plus labor can run around 10,000
My question is not about the pump even though I'm afraid of the problems associated with the cp4 my issue is my truck keeps gelling up with additives ?
You all have fallen for superb marketing. The cp4 is a superior product when taken care of. There are companies here in the US that modify them. They pin the buckets preventing rotation, and modify the ports preventing metal from traveling through the fuel system if there is a failure. The DCR is a product of China. The DCR has only 2 pulses per crank rotation. The cp4 has 4 that are timed with each injection event maintaining pressure and reducing harmonics. Just do some research before jumping on the bandwagon.
@@HSKFabricationsHere's some more research: the OEM's wanted a more affordable & less complicated fuel pump so Bosch came up with the CP4 design( it's a more simple design & allows for ease of producing) thus less expensive....two of the US OEM's have stop using the CP4(one going with Denso & one going back to Bosch CP3)...One OEM did a recall because of the CP4 & those had pin buckets..."superior product" I'm not so sure about??🤔
Run a fuel lubricant and before you start the truck, let the stock lift pump prime the system, when the lift pump cycles off then start. That way you are never starting dry. Nothing wrong with the cp4
@@betterthanideserve76 you are saying I have to essentially pay an extra dollar a gallon for fuel and wait ten seconds to start every time and the pump is fine? No that means the pump is shit.
@@AlphanumericCharacters no I'm saying 388k miles on my 2019 says nothing is wrong with it. I have a fleet of 12 6.7', never had one fail. I have a combined total of 3,384,000 miles on my trucks saying the pump is fine. The fuel is the issue. You obviously have zero clue on this matter
@@betterthanideserve76 you said you use a fuel lubricant to keep them running. If you have 388k and got an impressive 20 mpg you would have spent $19,400 on fuel lubricant. I don’t really see that it makes it a good part if I have to spend $20 grand to keep it from shitting the bed. You say it’s the fuel but why doesn’t the CP3 have the same issue? It’s running the same fuel. You don’t make sense. I’ve actually replaced MANY of these pumps. You’ve got a workaround…cool but it’s costing you a lot of money. I’m no hater of the 6.7. Great engine. That pump is garbage.
