2020 RAM 3500 Mega Cab - Likely CP4 Failure at 100,900 Miles

[TheLoveMuss]

I may be jumping the gun as I am waiting in a hotel for Wyoming Diesel Service in Rawlins, WY, to get back to me with a diagnosis, but I am pretty certain the cp4 failed on me, leaving me stranded Sunday 8/8/21, 1,000 miles from home.

2020 RAM 3500 Mega Cab 6.7L HO with Aisin.

Looking for advice and/or help.

I had 100k mile warranty but of course I am at 100,900 miles.

Will the dealership still honor the warranty due to all the problems people have been having with these trash CP4s or am I stuck paying out of pocket?

If the dealership will warranty the work will they install the CP3?

If I am likely going to have to pay out of pocket where should I look for parts?

I will obviously need a new fuel pump if it failed but I am assuming I will need the high pressure fuel rail and new injectors as well.

Anything else needed?

The real kicker is I was going to do the sns CP3 conversion in the next week or two.

What happened is I started the truck after a 10 hr break and it was making loud grinding rattling noises so I popped the hood and put my hand on the fuel pump.

It was rattling and vibrating badly, but I attempted to head out and hit the interstate,e hoping it was nothing. 30 ft on the on ramp to I80 the truck died.

I started it without any issues other than the loud noises and reversed to go back to where we had parked for the night and when I hit the accelerator it died again.

It started again with no issues other than the loud noises and I let it idle in reverse to park it on a BLM road.

I called the Chrysler vehicle protection line for a tow and sat around for 8 hrs waiting on a tow because they didn't want to pay the rate for the 28' bumper pull camper trailer I am delivering to Idaho Falls ID.

So now I am just playing the waiting game.

Any thoughts, advice, suggestions, or help much appreciated.

Thanks in advance.

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[cumminsdieselfreak]

IMO any dealer worth dealing with will write down your mileage as 99,994 to help you out if it's a big issue like the CP4.

I was a few hundred miles over one time, and they helped me no problem; I wasn't hateful with them either.


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[Chrisn162001]

IMO, any dealer worth dealing with will write down your mileage as 99,994 to help you out if it's a big issue like the CP4.

I was a few hundred miles over one time, and they helped me no problem; I wasn't hateful with them either.


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We can’t do that.

Besides it being a fraud, Chrysler requires scan reports with codes on warranty repairs.

We would more than likely “goodwill” this repair at the dealership I work at since it’s a common problem and they aren’t too far out of warranty.


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[bolbot5m]

Definitely be a goodwill deal if the dealer is cool about it.

I've done a few that were barely over.

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[Fire4effect44]

This is a sidebar, but do you know if your CP4 is the updated design with the symmetrical cam or the original asymmetrical flavor.

The updated version has a dimple on the housing.




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