How To Fix CP3 Knock! 

No way possible this makes any difference whatsoever

Wow! This has been driving me nuts for 3 years. Thank you for actually showing the difference.

Thank you for this information. I have 2014 that's been making the knocking noise for about 2 years and it got progressively worse from 175k miles to 210k. I recently went to larger new injectors with a proper tune and the knock remained the same. I was extremely skeptical of doing what you described here for about a month but with ever other test exhausted i performed i said WTH I'm trying it. I performed this method as described and the knock is GONE. Something else that's strange, is it doesnt start as "aggresive" as it did before. Its like it takes another half turn for it to start but it's a much smoother start. Did i mention the knock is GONE too😊. I'm interested in how long this last but at least i know the source of the issue. Thank you sir!

Thanks for this info. I can’t believe it’s been such a hassle to get someone to actually phase the CP3s. Just a helpful tip, leave the motor at top dead, and use channel Locks to gently turn the CP3 instead of the engine. There are stamps 754. Put the 5 at the 9 o clock position and the motor at TDC. This eliminates doing it twice. Not a 30 minute job, maybe the second time and if it’s not hot 😂

why would it knock in the first place. mine just started for no reason

Great video man! Just to be clear, you’re just pulling the CP3 gear and turning the engine 60-90 degrees? And you’re rotating the engine clockwise right?

My truck sounds identical to your before video. Gonna give this a try. The one thing I'm confused on is if you're not loosening the 3 bolts on back of cp3 where is the movement coming from when your pushing the gear back to free it from the engine?

That is awesome thanks

Thanks!!! Your before sounded EXACTLY like what mine is doing, I was getting worried something horrible in the engine was brewing. Going to do this process this week.

Did you notice a power difference? Mine sounds like a minion with a hammer on cocaine under my hood. I have decent power under less that half throttle but more than that is pointless, it's almost like it loses power under full throttle

Hey right on this was very helpful!

Holy shit what a difference!!!!! Doing this tomorrow!!!

Great video, definitely explains the same sound I’ve heard from my truck. How did you get your engine TDC?

Any suggestions on how to get the 1-1/16 nut off mine seems to want to spin with the pump

Would this cause high fuel pressure and or feed back valve issues?

Dude this is absolutely amazing thank you for sharing this man!! It worked on my 04. Now just gotta figure why it keeps making a random rattle and lopes like it’s cammed. I have no codes a new Mprop new air dog and 4 new injectors. I’m praying it’s not another injector. But if you or anyone’s had this problem please help. It’s getting great Mpg the power seems fine it’s been a very confusing situation lol

Hey man! My 06 Cummins sounds similar too that knock yours had. I have a video of it on my YT page you think it might be the CP3 ?

Any difference how it runs or just sound? Mine bit noisy

Why do you have to remove the cp3 pulley if the Serpentine belt is removed ? If you rotate the crank pulley then the cp3 pulley isn't rotatating anyway.

Facing the front of the truck did you rotate it counter clockwise or clockwise?