cp4 fuel pump
Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 119
From: Tallassee, ALabama
Yup. It hates water. Water is its worst enemy. Buy fuel from a high volume reputable source. Drain filter and change filter regularly.
Same goes for similar CP pumps on the other brands.
Same goes for similar CP pumps on the other brands.
Cargo Master
Joined: Jul 2008
Posts: 2,585
Likes: 62
I have been monitoring some threads on the fuel pump replacement. I have thought about replacing mine. There is a video (below) that is a fairly complete walk-through of the removal of the old one and install of a new one.
I would be curious what options there are for "better quality" pumps. I quote that because that may be a loose term. As per the title of that video - that replacement was with a 2015 MY pump in place of the prior generation. I haven't found what the line of thought is there, whether it has a materials change or design change that makes it less susceptible to exploding with water intrusion, or even just low lubricity fuel, but it appears to be a direct replacement.
There appear to be some performance aftermarket upgrades as well to deliver higher pressure or volume.
I would imagine no high pressure pump is going to like water ingestion, emulsified or not. Though, is there a general consensus on fuel pumps that are more bullet proof than what Ford offers?
I would be curious what options there are for "better quality" pumps. I quote that because that may be a loose term. As per the title of that video - that replacement was with a 2015 MY pump in place of the prior generation. I haven't found what the line of thought is there, whether it has a materials change or design change that makes it less susceptible to exploding with water intrusion, or even just low lubricity fuel, but it appears to be a direct replacement.
There appear to be some performance aftermarket upgrades as well to deliver higher pressure or volume.
I would imagine no high pressure pump is going to like water ingestion, emulsified or not. Though, is there a general consensus on fuel pumps that are more bullet proof than what Ford offers?
Cargo Master
Joined: Jul 2008
Posts: 2,585
Likes: 62
For documentations' sake here is another thread here I came across that has information relating to an aftermarket replacement along with a detailed description of the removal/install procedure.
https://www.ford-trucks.com/forums/1...-pump-diy.html
https://www.ford-trucks.com/forums/1...-pump-diy.html
Senior User
Joined: May 2009
Posts: 282
Likes: 0
The 15+ pump is a stroker cp4. Puts out more fuel than the earlier version. Most guys will upgrade it with the 15+ turbo on the earlier 6.7's at the same time. Turbo is more reliable than the sst. Makes better, more reliable power especially when deleted and does better at high altitude. I have heard some claims that the 15+ cp4 has a better coating that should make it more reliable but I'm not positive on that. For the record thou, I follow allot of powerstroke forums and have not heard of many failures in the last 3 years or so since I bought my 15. Think it is blown out of proportion, just use good fuel.
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