RAM 2500 6.4L HEMI V8 Engine - Top 5 Issues & Concerns *Heavy Mechanic Review*

I review the 2025 Ram 2500 6.4L Hemi V8 Engine and discuss the top 5 issues like the Hemi tick, lifter failures, cylinder deactivation as a heavy duty mechanic

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What I Use:
6.4L HEMI
AMSOIL Engine Oil - https://www.amsoil.com/lookup/auto-an...
WIX Engine Oil Filter - https://www.amsoil.com/p/wix-oil-filt...
WIX Engine Air Filter - https://www.amsoil.com/p/wix-air-filt...
Cabin Air Filter - https://amzn.to/3JMZAHh
Gear Oil - https://www.amsoil.com/p/amsoil-sever...
Grease - https://www.amsoil.com/p/amsoil-100-s...
Rust protection - https://www.amsoil.com/p/amsoil-heavy...

What I Use:
7.3L POWERSTROKE
Engine Oil - https://amzn.to/3ZLIWBD
Engine Oil Filter - https://amzn.to/4gHTwRb
Fuel Filter - https://www.amsoil.com/p/wix-fuel-fil...
Gear Oil - https://www.amsoil.com/p/amsoil-sever...
Grease - https://www.amsoil.com/p/amsoil-100-s...

Towing Gear:
10 ton Pintle hitch (2.5" receiver) - https://amzn.to/3r7Axvm
7 Ton Adjustable hitch (2" receiver) - https://amzn.to/46i2iAf
Adjustable Pintle hitch mount (2.5" receiver) - https://amzn.to/3RqHGS3
15 Ton Pintle hitch - https://amzn.to/45SaCqv
10,000lbs Tie Down Straps - https://amzn.to/3ZBnxeh

Well to top off our mini series with this 6.4L HEMI we are talking about 5 things I don't like about this hemi as well as some issues or concerns.

The first thing I don't like about this 6.4L Hemi is that is has cylinder deactivation also known as the MDS system. to me it adds very little benefits in terms of fuel economy but adds more complexity and potential failure points

next is the lifter failures or the HEMI tick where the lifter roller needle bearings fail and cause a ticking noise eventually eating up the camshaft and spreading metal everywhere.

this engine is also an older engine coming onto its 12th year and I think it would be very nice to see this platform updated.

the next issue is the exhaust manifold studs breaking off causing a nasty exhaust leak. extremely common with the 5.7L hemi but still a common issue with this 6.4L Hemi.

Lastly I would of loved to have seen this 6.4L hemi come with forged connecting rods but you can't have it all!

00:00 - Intro
01:10 - Cylinder Deactivation
03:54 - Lifter Failures
06:34 - Old Design
07:59 - Exhaust Manifold Leaks
09:05 - Connecting Rods
09:49 - 66RFE Transmission