Help Support Ram Forum by donating:


  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Lifter Replacement.

Discussion in 'Heavy Duty' started by dmillar74, Feb 26, 2020.

  1. farmallboy

    farmallboy Member

    Age:
    33
    Posts:
    92
    Likes Received:
    47
    Joined:
    Mar 19, 2020
    Location:
    Croton
    Ram Year:
    2019
    Engine:
    6.4 hemi
    Ok. So as a 3 week owner of a 6.4 this has been a terrifying thread to start reading. Especially because just this week my wife kept my truck running for 20 minutes at a nice warm idle.

    So where is the quickest collection of info of best advice ? I bought this thing because I was tired of fixing an old rusty truck but that thing didn't cost me 42k. I planned on this thing being a 15-20 year investment with value left down the road and at least 150k miles. So heavier oil is best thing and more frequent changes ? I just read some last night and have been uneasy since. But today I broke 500 and wanted to hook it up for the first time. While I hooked up the trailer I was paranoid about idle time and shut it off when I saw the oil pressure sit at 35.

    Now I'm wishing I splurged for more warranty.


    Sent from my iPhone using Tapatalk Pro
     
    scott lass 18 likes this.
  2. RedneckHippy

    RedneckHippy Senior Member

    Posts:
    114
    Likes Received:
    97
    Joined:
    Jan 26, 2020
    Location:
    Washington
    Ram Year:
    2019 Ram 3500 Tradesman
    Engine:
    6.4 Hemi w/ MDS
    Just put that money you would have splurged for an extended warranty into a high yield bank account, and if you need to get the thing rebuilt in the future you can have a good mechanic do it the right way with whatever parts you want.
     
    GsRAM, scott lass 18 and WY.Ram like this.
  3. Halligan

    Halligan Senior Member

    Posts:
    115
    Likes Received:
    135
    Joined:
    Jun 15, 2015
    Location:
    Massachusetts
    Ram Year:
    2015
    Engine:
    Hemi 6.4
    I change my oil every 5,000 miles with PUP, shut off the cylinder deactivation feature pretty much every time I drive, and avoid excessive idling. Beyond that if the motor frags I'll hopefully recoup the money I spent on the Lifetime warranty.
     
    WY.Ram likes this.
  4. farmallboy

    farmallboy Member

    Age:
    33
    Posts:
    92
    Likes Received:
    47
    Joined:
    Mar 19, 2020
    Location:
    Croton
    Ram Year:
    2019
    Engine:
    6.4 hemi
    How can cylinder deactivate be accomplished? Thoroughly upset I didn't research this motor more before purchase. Only saw the good stuff.


    Sent from my iPhone using Tapatalk Pro
     
  5. WY.Ram

    WY.Ram Senior Member Supporting Member

    Posts:
    279
    Likes Received:
    205
    Joined:
    Oct 26, 2015
    Location:
    Larkspur, CO
    Ram Year:
    2016
    Engine:
    6.4L Hemi
    (Christ words to apologize for too many words sorry, I might need a life. I just dig my truck and y'all's)..............

    I would think it possible that a seized roller could perform like its flat tappet cousin but it seems to be much worse than that. Imagery of failures show The lifter seems to turn about 90 degrees and the edge of the roller proceeds to cut into the cam lobe and cut hard.

    Looked like the roller been running that way since day one but sound clips of the tick are extremely loud and nobody is driving that sound out of their driveway.

    Not to say the milder sounds aren't a prelude to such erosion but as far as a "stage 4" failure event, you'll know it. And if any sound is a prelude to that disaster it's gotta be addressed. And no way an oil filter can protect the rest of the system from that kind of Carnage. The entire lobe center will be missing with the only the edges remaining. In the shape of u, like that of a sideways roller lifter.

    With that bit of fear mongering on my part, I will add that so far this has largely been an early 5.7 but some numbers in most years. The 5 7 and 6.4 are similar enough that if FCA hasn't done anything the 6.4 numbers may start to climb. But not too bad yet. Im not sure how many millions of 5.7 engines are in operation but several. Ratio ehh not terrible, pretty low. It's Still not ok tho. Especially if it's your truck, ya know.

    I've read guys that say their '12 (I think) was the most probable year to see lifter failure, and some say they fixed it in '16+ engines, now I read fixed in '18+ engines but that's all unsubstantiated. FCA mythology.

    Also have to add that the forum is a place where solutions are sought, so problems are more concentrated within these hallowed walls. So maybe the odds are even better yet but that does nothing for those that have had the total pita problem. The failure is real and happens far to often, imo

    FCA owes the repair but my wife owes me at least 15...well nevermind. But I'm sure to not get either one. (Unless I pay more....ha)

    FCA claiming that were all just hearing sounds, or we don't know what an engine is supposed to sound like and so forth is just grating.

    The best 'permanent' fix I'm aware of is to replace the lifters with those used in the Hellcat Hemi. Apparently the Hellcat lifters are produced with a more substantial needle bearings, and are not prone to seizing like ours. Since the Hellcat is a non-mds engine, best practice may be to do the 'mds delete' which entails capping or plugging the mds oil channels in the heads, changing the cam to a non mds unit and probably having the mds controls in the PCM shut off. I have NOT done mine yet, so with a grain here

    Not all of that is necessary, maybe, I've read guys the that change only to a non-mds lifter and their engines are currently running very well.

    I'm not saying it's the mds system causing the issue but as long as were here - to me that system is bullshit and nothing more then smoke.

    Another discussion entirely but MDS sayS that you and I are pushing some truck down the road (Ford), a perfectly flat road, no wind. And we are doing quite well. The fastest that particular truck (Ford) has ever gone. You and me pushing with 50% of everything we have, exactly 50%.

    Maintaining 50mph, and then suddenly my pussy hurts, I decide f this and I stop. MDS says RAMyou can continue to maintain that speed all by your badass self with no additional effort.

    Bullshit, Delusional bullshit

    The truck will not keep the same speed unless the exact same amount of energy is applied as before. Which means now your badass self is pushing 100%. Not 50%, not 98 or 99%, but 100%. Mds is a lie and anyone who thinks those 4 cylinders are doing less work then the 8 cylinders needs to take a class in physics. The true laws of our universe.

    Matter of fact I would argue those active 4 are now doing more work because the inactive 4 are nothing but dead weight along for the ride and they brought their friend 'friction' along.

    Envision me on your back and I'm dragging my feet. MDS says that makes it easier for you,, so I wanna see you hit 55mph or I wanna see you hold 50mph longer or I'll settle for you only eating half that sammich. MDS says it's so.

    Gawddamn joke. There I go, all elevated and shit again. Breathe, breathe......and bong hit, aah (I am in CO after all)lol, just kidding. Kinda

    Disclaimer and public apology - I am sorry I use strong language, it's how I express myself best, Ramyou, I just used you and I as an example, I'm not saying you were an advocate of MDS, and I'm not saying that the ladies can't push that truck better than me, cause they can, that's why it was my 'gina that hurt, not theirs. So no offense only hugs and smiles (for the ladies, bong hits for the brothers, and absolutely the ladies can bong hit too, and toilet paper for everyone!!!)

    Did I forget to mention how much I love my Wagon, she is the girl of my dreams, and if something happened to her, I'd go get me a nice shiny, no mods 2020, and start modn.

    We all know Everything is not perfect, and my 392 ci Hemi is the baddest engine / truck combo I've ever owned. Fukd lifters and all. She is the shiz and she's mine, and I'd marry her again!

    Tapatalk wiped my sig but a couple basic Bolt-on's, tuned by wizard, 5.13 gears turning 37" MTs and she will flat eat shit up. Naturally aspirated, 3/4 ton 7600lb rolling menace, never meant to be a quarter mile pony but they come after me so I oblige. Very few want to try again.

    She's not even close to maxed out either, ported heads, and a more aggressive cam will make a her a cannibal. It already takes a twin turbo'd deleted diesel to challenge (one did send me to corner to lick my balls recently, but only once, and it was turning like 32s and you could hear the massive turbo spool for miles, it spooled, I gapped it bad, then, then it all changed, halfway thru 2nd it gapped me by 4 lengths in one gear then it was even through 5th....any way, it was badass) not bragn, well a little, but my point is DO NOT give up on your 6.4L they are worth a lifter job. Mine is worth way more than that to me even. Super proud.
    Sorry bout the long, distracted post. Keep loving what you bought, seriously, they are every bit as badass as y'all were thinking when you threw your hard earned dollars at it.

    I'm not stopn with mine, Kings and springs come with those lifters? F yeah, all in!
     
    Last edited: Mar 31, 2020
    RedneckHippy and RAMYOU like this.
  6. RAMYOU

    RAMYOU Senior Member

    Posts:
    306
    Likes Received:
    90
    Joined:
    Sep 9, 2014
    Ram Year:
    2015
    Engine:
    Hemi 6.4
    hhaahaha bravo bro. I read the whole thing and enjoyed it. Thanks
     
    WY.Ram and RedneckHippy like this.
  7. Halligan

    Halligan Senior Member

    Posts:
    115
    Likes Received:
    135
    Joined:
    Jun 15, 2015
    Location:
    Massachusetts
    Ram Year:
    2015
    Engine:
    Hemi 6.4
    I have a 2015 with the 6 speed so I use the range select button on the gear shift lever to select 6th gear. Doing this will allow the truck to use all six gears but not kick the MDS on. On your truck with the 8-speed I believe your range select button is on the steering wheel. If you toggle down or up until you select "8" you will have all gears for driving but no MDS activation. Using tow/haul will lock it out as well but you have the aggressive shift pattern as a by product.

    Don't be upset with yourself and enjoy the truck. My truck has almost 55,000 miles and the engine hasn't been touched and it runs fine. I hope to drive it another 5 years and add another 55,000 miles without issue before I offload her for a new 2025 Power Wagon.
     
    GsRAM, WY.Ram and farmallboy like this.
  8. Chris8579

    Chris8579 Junior Member

    Age:
    40
    Posts:
    23
    Likes Received:
    10
    Joined:
    Jan 16, 2020
    Location:
    Spring Hill Florida
    Ram Year:
    2016
    Engine:
    6.4 hemi
    Since I have been discouraged by my 6.4 I went and looked at a new 2500 Hemi tradesmen mainly wanted to listen to it. Well it started up with a nasty lifter tick and made the same weird sound
    Mine does now but didn’t make new or in the first 250 miles after getting mine back after cam and lifter. So now I’m really confused. I also looked a ram Rebel with a Hemi it made the
    Same weird noise but no startup tick. So I’m really confused on what’s normal with these trucks
     
  9. farmallboy

    farmallboy Member

    Age:
    33
    Posts:
    92
    Likes Received:
    47
    Joined:
    Mar 19, 2020
    Location:
    Croton
    Ram Year:
    2019
    Engine:
    6.4 hemi
    Thanks for the info and advice. I do like this truck. I wanna keep it a LONG time. My wife is due in June. It would be a nice thought to make the boy earn the truck for his 16 bday. That would be a good life to me. This truck is just tow pig and weekend warrior so it won't be worn out for a long time. I plan on doing early services of everything and using the highly recommended RL oil.

    Yes I have the range selector on the wheel. I haven't tried it out yet. Just hit 500 over the weekend and soared to where my big trailer is stored, hooked up and drug it around for a little while. I'll be honest the tow haul is a dream on these trucks. The shift points are great. I still cannot get used to the shifting on the 8 speed at normal driving.


    Sent from my iPhone using Tapatalk Pro
     
    WY.Ram likes this.
  10. Chris8579

    Chris8579 Junior Member

    Age:
    40
    Posts:
    23
    Likes Received:
    10
    Joined:
    Jan 16, 2020
    Location:
    Spring Hill Florida
    Ram Year:
    2016
    Engine:
    6.4 hemi
    Be glad you have the 8 speed I have a 6 speed and it does 50 in 1st 80 in 2nd Flat out. so the last 3 are overdrives it’s like a 4 speed with 2 overdrives. How does that 8 speed go. I towed 12500lbs or so from Maine to Florida no problem was in 4 th gear the whole time on highway though.
     

Share This Page