How to tell if you have the Asymmetrical CP4 or new Symmetrical CP4 -- MOD[DO NOT DISCUSS THE CP3 CHANGE IN THIS THREAD]

[Admin]

[MOD: HPFP Recall issued 11-11-2021]

Compliments of @Jimmy07 :

Here’s two advanced communications for it:

Y78 Advanced Communication.pdf

drive.google.com

Y87 Advanced Communication.pdf

drive.google.com

 

[macmov]

Good Information! Now at least I know, I have an updated Pump, maybe no more failures!

 

[BLuRRnAWAY]

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Is the newest CP4 fix the issue they were originally having?


Sent from my iPhone using Tapatalk

 

[blfuller123]

Did this change correct the issue? Was about to pull the trigger on a 2020 5500 before reading about the CP4 failures-already been down that road with a GM truck i had and was part of the reason I was looking at the Ram trucks.

 

[Billcf7]

Wait for a 2021, went back to CP3 pump