[DodgeJay]

I have a 2012 Dodge Ram 1500 with the 5.7 hemi. It’s sitting in the shop because of a cylinder permanent misfire. Are they ever going to recall this?

 

[Dennisbrokeram]

Update on my 2014 Ram 1500 Hemi 5.7.My mechanic just got the top part of my motor apart bad Cam and Lifters on number 5 Cylinder. I ordered a new Cam and a set of lifters and rings The lifters have made in China stamped on them.I think we found the problem. My mechanic had another hemi 5.7 came out of another 2014 ram same problem On number 5 cylinder .Sad Ram needs to fix this problem . I will definitely tell everyone not to buy a ram. I'm going to trade this one in and get me a nother GMC My Sierra has 300000 miles and still going.

 

[Dennisbrokeram]

I have a 2012 Dodge Ram 1500 with the 5.7 hemi. It’s sitting in the shop because of a cylinder permanent misfire. Are they ever going to recall this?

I can tell you it will be a bad cam and Lifters sad they wont recall this. My mechanic has a 5.7 motor at his shop came out of a 2014 ram just like Mine same problem Guy just totally replaced the motor

 

[Ben coyle]

well I had a 2012 with bad cam and lifters go out at 89k miles. Dealership fixed it and I traded it in for a 2015 1500 lonestar 5.7. At 40k cylinder 3 and 8 bad cam and lifters. Dealership fixed it. Here it is 85k miles cylinder 7, bad cam and lifters. Dealership put a brand new long block on 6/28/2020. I contacted fca and went round and round with them to either buy back or give some cdi incentive to trade out of it. Was told they don't have issues with the hemi. And basically to deal with it. Oil changes every 3k miles with synthetic blend. Don't let em fool ya saying dirty oil or not enough lubrication. I would definitely join a class action suit. You can contact me bencoyle78@yahoo.com.

 

[Raybo59]

HI!

I figured I would post here as everyone is probably worn out by the 71 pages of the sticky thread on this topic.

I've started a class action suit for this issue. I need 5 individuals with this problem to be initially named to file the suit.

From attorney " I need any pamphlets, user manuals or other paperwork from when the car was purchased. Ideally there be a separate document spelling out the warranty terms. Also a repair bill or something stating the exact issue."

Bonus is you are from South Carolina ! would make the suit much easier to file. Feel free to DM me if interested.

Would love to join in 2105 ram with the same issues.

 

[Mikes2nd]

 

[TheBstro]

HI!

I figured I would post here as everyone is probably worn out by the 71 pages of the sticky thread on this topic.

I've started a class action suit for this issue. I need 5 individuals with this problem to be initially named to file the suit.

From attorney " I need any pamphlets, user manuals or other paperwork from when the car was purchased. Ideally there be a separate document spelling out the warranty terms. Also a repair bill or something stating the exact issue."

Bonus is you are from South Carolina ! would make the suit much easier to file. Feel free to DM me if interested.

Not from South Carolina but my 2014 1500 just blew up 2 weeks ago. 99,000 miles. Mechanic says something about a valve issue in the 3rd cylinder?( sorry not a car guy).. he says he sees this slot and is suprised nobody has brought a lawsuit against the manufacturer..

 

[Mikes2nd]

IF YOU HAVE A 6.4 fail WATCH THIS...

 

[TonyJaquez]

201

Hello,

looking to see what ever happened with your lawsuit. I don't have a RAM but do have a 2012 300c that is in the shop for a Cyl3 misfire and ended up being a thrown rod and a shop is quoting me 1800 for labor only....GEESH!! please let me know how i can be added to this lawsuit. Tonyjaquez0221@gmail.com

 

[Mikes2nd]

what does a thrown rod have to do with bad lifters?

 

[Magnoom]

Hello,

looking to see what ever happened with your lawsuit. I don't have a RAM but do have a 2012 300c that is in the shop for a Cyl3 misfire and ended up being a thrown rod and a shop is quoting me 1800 for labor only....GEESH!! please let me know how i can be added to this lawsuit. Tonyjaquez0221@gmail.com

Bwahahahaha
"My issue has nothing to do with the topic at hand but how can I maybe get free money if it is successful?"

 

[StormTrooper_2013]

Same issue with my 2013 RAM 1500 Sport with 5.7L Hemi. First, it had the common issue of sheared exhaust manifold bolts on both sides, which was somewhat of a pain to fix because a couple of the bolts were very difficult to extract with the heads still attached to the engine (wish I would've known the cam/lifter issue at the time and I would've waited to replace the manifolds with the heads removed from the engine, would've been much easier!). Then, shortly after fixing the manifolds my engine started "chirping" loudly when idling at 130K miles (50% highway miles). At first I thought it was belt/pulley related and replaced the belt and tensioner, but it didn't fix the chirp. I also noticed MPG had decreased slightly, which was odd. An oil change made the chirp at idle disappear temporarily, so then I figured it was an internal issue and used my stethoscope to confirm. After some internet research, it is clear I have the cam/lifter failure that is pretty common. Pretty upset!

I bought the truck new from the dealer in 2013. I've done 100% of my own maintenance, and for oil changes I've only used fully synthetic Mobil 1 Extended Performance oil and filters every 10K miles per the manual. Pretty disappointed because I planned to drive this truck for 250-300K miles and have spent some good $ on maintenance and upgrades, but that doesn't help much if there's an inherent design flaw with our engines! Might be the last RAM I ever buy.

Anyways, I would be interested in joining the class action lawsuit.

 

[Mikes2nd]

I've only used fully synthetic Mobil 1 Extended Performance oil and filters every 10K miles per the manual.

the manual suggests 3k-10k oil change depending upon driving habits? Did you truck have the indicator?

I keep seeing 8k as a suggestion also.

It obviously was a MDS failure... Your MDS was failing(MPG change), and I would lean towards dirty oil clogging your MDS.... This happens with Ford/GM also... clogged AFM..

Hell I change my Chevy max 5k... Its cheap insurance. At 8k it looks like pitch black strong coffee and I don't push it, ive let it go to 8k once.. I was like holy sh*t that was bad...

10k per oil change is MAX suggested intervals... Or did you use the indicator? Obviously you weren't if you were going every 10k. I never use my oil indicator... I just work off every 5k(mileage hit)... I really don't like the "smart oil" indicators... I mean a computer reset? sitting... temp... maybe they err on the conservative side? But 10k is max... If i was going to keep a vehicle I wouldn't push oil changes, its cheap stuff compared.

You guys could maybe get a exhaust manifold bolt class action, now that is bad That's general maintenance nowadays for 4-5-6 year old Rams(even the 4.7s I think I broke mine when I stomped the shit out of my 4.7 recently... I have to check.

 

[StormTrooper_2013]

the manual suggests 3k-10k oil change depending upon driving habits? Did you truck have the indicator?

I keep seeing 8k as a suggestion also.

It obviously was a MDS failure... Your MDS was failing(MPG change), and I would lean towards dirty oil clogging your MDS.... This happens with Ford/GM also... clogged AFM..

Hell I change my Chevy max 5k... Its cheap insurance. At 8k it looks like pitch black strong coffee and I don't push it, ive let it go to 8k once.. I was like holy sh*t that was bad...

10k per oil change is MAX suggested intervals... Or did you use the indicator? Obviously you weren't if you were going every 10k. I never use my oil indicator... I just work off every 5k(mileage hit)... I really don't like the "smart oil" indicators... I mean a computer reset? sitting... temp... maybe they err on the conservative side? But 10k is max... If i was going to keep a vehicle I wouldn't push oil changes, its cheap stuff compared.

You guys could maybe get a exhaust manifold bolt class action, now that is bad That's general maintenance nowadays for 4-5-6 year old Rams(even the 4.7s I think I broke mine when I stomped the shit out of my 4.7 recently... I have to check.

Yes, my truck has the oil change indicator and I followed it. Not sure why you would assume mine didn't have an indicator. My truck doesn't haul anything, so usually the indicator wouldn't tell me to change until 9-10K miles. Also, Mobil 1 fully synthetic extended performance is supposed to last 15K miles, so I shouldn't have any issue with 10K intervals. Given that SO many people have this issue, including those who have had their RAM serviced at the dealer only, I would say its a common issue resulting from poor design and not my oil changes.

I've heard MDS is unrelated to the cam/lifter issue because a lot of non-MDS Hemis are affected too. I assumed loss in MPG is a result of significant up/down play in the lifter roller, which means the lifter isn't fully opening valves and is hurting performance.

I would take a class action on the cam/lifters over the exhaust bolts all day. What's worse, an annoying exhaust leak that results in a ticking sound that can be fixed for $300 in parts and 4-6 hours in labor without removing any major engine components, or a catastrophic engine failure requiring tearing down the top end and $1,500 in parts plus 12-16 hours of labor?

 

[Mikes2nd]

well I would be pissed if you followed the oil change "computer" but I don't trust mine like i said and like to err on the side of safety... for the mpg change It could have been the cam lobe flattening, not opening but MDS failing would be more noticeable immediately. Weird you got a "chirp" instead of a tick... that would have thrown most dealers for a loop and me. 300$ in parts? its like 40$ for manifold bolts. i guess they replaced the manifolds... Mostly labor and decking of exhaust manifolds(they warp). Top end is a 7 hour job for a pro, they probably quote that much to be safe. You can get a new rebuilt engine for 2700$ shipped with a warranty... I think I would do that myself

 

[StormTrooper_2013]

well I would be pissed if you followed the oil change "computer" but I don't trust mine like i said and like to err on the side of safety... for the mpg change It could have been the cam lobe flattening, not opening but MDS failing would be more noticeable immediately. Weird you got a "chirp" instead of a tick... that would have thrown most dealers for a loop and me. 300$ in parts? its like 40$ for manifold bolts. i guess they replaced the manifolds... Mostly labor and decking of exhaust manifolds(they warp). Top end is a 7 hour job for a pro, they probably quote that much to be safe. You can get a new rebuilt engine for 2700$ shipped with a warranty... I think I would do that myself

I never take my truck (or any vehicle) to the dealer or mechanic unless working with high energy suspension springs. I do all of my own work to ensure the job is done correctly and without haste. I've had a dealer quote me $800 for a TPS sensor repair that sits on the very top of the engine on S197 V6 mustangs. It literally took me 15 minutes to swap out the $80 part, just a couple bolts. I don't trust dealers. It's not rocket science, rather just need good tools, patience, and thorough research before tackling a big repair.

Yes, a direct result of broken exhaust manifold bolts is badly warped manifolds. I (myself) replaced all exhaust manifold bolts and both manifolds, including new manifold gaskets. For a couple hundred more dollars I would rather have fresh manifolds than decked ones...they were warped so bad they would've needed a lot of work.

I assume the chirp is a result of metal-on-metal because the lifter roller is seized and just rubbing the cam lobe down. Other members have commented on this thread about the chirp as well.

I've called multiple shops and they all quote between 12-14 hours for the top end job, so seems to be the norm.

Did you watch the video posted on page 4 of this thread? It explains the lack of lubrication leading to the failed lifter/cam issue. It's clearly an engineering flaw and nothing to do with owner upkeep.

 

[Mikes2nd]

if it was an engineering flaw all engines would experience it... they have sold millions of hemis... The hellcats, the chargers... all would be failing yet many go on to 200-300-400k... Many people are getting huge mileage out of these engines... Early failures I would think are lifter quality control, later failures are mds issue, dirty oil(mds). Uncle Tony has no clue wtf he is talking about. Chrysler would be bankrupt again and NO one would ever buy another Hemi if this was a common issue, yet I see they sell more and more everyday, TONS of them on the road. I think 2011-2015 are the real trouble spots. Getting much older. I would turn MDS off if I had a older truck honestly. I honestly would think you pushed the oil changes, no real fault of yours following the oil light. You trusted an computer algorithm written in 2013..

These late failures are from the MDS and dirty oil though.... This guy debunks UT... I mean UT didn't even know the oil galley is how this engine gets oil to cam(from the lifter) and UT thought the oil galley stains on the lifter were from the lifters cocking in the bores... Seriously clueless.

 

[Mikes2nd]

Hotrod talks about when MDS fails... The have a video clip of lifter/cam failure also.

What Is Hemi MDS?

We explain how Chrysler Hemi MDS cylinder deactivation works, what goes wrong, and how to fix it when it breaks.

www.hotrod.com

Getting cylinder deactivation to happen from a practical standpoint takes some pretty precise engineering. Within the lube circuit of the Hemi's hydraulic roller lifters are four control valve solenoids that when energized by the ECM through the harness divert pressurized oil to a locking pin in the lifter. When this pin is pushed into the body of the lifter, the roller on the lifter can still follow the cam profile, but the motion is no longer translated to the plunger—the part of the lifter that engages the pushrod. When the ECM de-energizes the solenoid, the spring-loaded pin engages with the plunger and all the parts of the lifter have the same motion again.

A few things can happen that can cause this mechanism to break down, the most common of which is oil contamination. When small pieces of dirt block the lube circuit, the lifter may not be able to change state, or the change may happen slower, or only partially. A common scenario with the MDS system in Hemis is where the ECM believes the lifter is engaged at higher rpm when it is not. Here, the internal pin that locks the lifter body to the plunger is still disengaged when the engine rpm goes up. In this failure mode, the roller follows the cam lobe, until it reaches an engine speed where it can't, and the roller crashes repeatedly on the lobe. Eventually, the lifter, roller, needle bearings, and the lobe surface become damaged to the point of failure.

 

[StormTrooper_2013]

Hotrod talks about when MDS fails... The have a video clip of lifter/cam failure also.

What Is Hemi MDS?

We explain how Chrysler Hemi MDS cylinder deactivation works, what goes wrong, and how to fix it when it breaks.

www.hotrod.com

Getting cylinder deactivation to happen from a practical standpoint takes some pretty precise engineering. Within the lube circuit of the Hemi's hydraulic roller lifters are four control valve solenoids that when energized by the ECM through the harness divert pressurized oil to a locking pin in the lifter. When this pin is pushed into the body of the lifter, the roller on the lifter can still follow the cam profile, but the motion is no longer translated to the plunger—the part of the lifter that engages the pushrod. When the ECM de-energizes the solenoid, the spring-loaded pin engages with the plunger and all the parts of the lifter have the same motion again.

A few things can happen that can cause this mechanism to break down, the most common of which is oil contamination. When small pieces of dirt block the lube circuit, the lifter may not be able to change state, or the change may happen slower, or only partially. A common scenario with the MDS system in Hemis is where the ECM believes the lifter is engaged at higher rpm when it is not. Here, the internal pin that locks the lifter body to the plunger is still disengaged when the engine rpm goes up. In this failure mode, the roller follows the cam lobe, until it reaches an engine speed where it can't, and the roller crashes repeatedly on the lobe. Eventually, the lifter, roller, needle bearings, and the lobe surface become damaged to the point of failure.

Thanks for that info. That certainly makes sense. Wonder why it's mainly limited to 11-16 though if the 3rd gen hemi has been around for quite some time...perhaps they used low quality lifters or something?

I'm sure that 75%+ of RAM owners follow the oil change interval indicator, so if that was a poorly written algorithm then everyone who followed it would have the same issue. If the ECM and MDS are messing up, that's either a result of dirty oil (due to indicator intervals being too long) or poor design/low quality parts. Both of those options come back on Chrysler, not the owner/driver. Point is, this issue is clearly too common for the manufacturer to ignore, yet they do. Very aggravating!

 

[pony]

The owners manual(2016) specifies an oil change at 4000 miles under "severe duty" operation. I suspect that a lot of Hemis are operated under some form of severity. 10000 mile oil changes seem absurd to me. I change mine every 4000 miles (Valvoline conventional) and I pay very little attention to the oil change indicator.......oil is cheap...cam/lifters costly.