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Warranty is generally much Less, Techs that know what they are doing and working on do OK on warranty ( Factory )

It's fiat , VM Motori you need to place the blame for problems.

Check all connections in engine compartment and Under dash.

In most cases after deleting, "Service Electronic Throttle Control" (NO MIL) was not handle correctly in the Delete Tuning... Also check all connections under the hood and Dash.

Yes... some have had success with goodwill....You will need to fight in most cases. We have documentation that VM was aware of the Failures dating back to 2016... You can find the info at FOIA

Nothing wrong with Ram... its Fiat/VM Motori that's the Powerplant MFG...I've heard the same comment by 100s of VM and CP4 owners, Many said the same comment...Additives have Little to NO effect on CP4s, good clean fuel is the ticket for CP4 longevity... I have had CP4s 0 to 504K miles the ones...

Yep....The risk of ownership of VM 3.0 is not worth the benefits IMO... I don't care what improvements they VM claims have been made.,...Again, its Hero-Zero powerplant. It saddens me when I read these posts, Thier are Less cost methods available.

Pictures would be helpful.

My guess is spun rod bearing... Any debris found in filter?

Oil Analysis............

My guess is NO OAs? If you own a VM 3.0 OA is required IMO, otherwise be prepared to spend $$$$$ in replacement costs.

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Ram was NOT the problem, Fiat/VM Motori... is were to place the blame, I have mentioned this numerous times....Ram/FCA America opposed that engine on Americas soil...., I traded My 2015 Fiat/VM Laramie 1500 in 2019 , for 2019 Limited.. 5.5 Years later 1 stay for warranty electronic steering...

It's on the Driver's side rail , limiting valve, CP4s need to run at 100% Volume (Combustion fuel) for longevity, so the LV regulates the fuel that's not needed for combustion back to tank. I don't care for electronic LV, the 2019-24 6.7 has the ELV, I hope it's done away with in the 2025 7.2...

Check the electronic LV...

Try Alfa OBD II , Stationary De-soot process.... It does take someone that knows the work -Arounds if 100% Message has been triggered. Does it have The Cummins 71a...

Normal, Check Your plenum...If cake up and wet, You could have a future Fire or melted plenum.

I don't know the laws in KY, In MN a state Authorized License Dealer CANNOT legally sell any vehicle that does NOT comply with COC (Certificate of Compliance) Bad faith law won't apply because they told YOU it was deleted. VM 3.0 are Hero to Zero Motor.

NO..............

Other engines....1000-4000+ Performance and competition powerplants...Like I mentioned before your engine rebuildable. Most are window blocks..