2018 / 2500 6.4 Shudder???

[Ribtipram]

6sp also. Dual shaft

 

[Jeff Courtney]

6 sp auto in mine with 4.10's. I wish they were lower than that. Below 2000 rpm when towing it has no guts.

 

[Rbertalotto]

UPDATE!!! My truck has been at the dealers for two days. Thank God they feel the Shuddering I described to them. They are waiting for some instrument that can read chassis vibration which they will have on Monday. I have other vehicles so it isn't an inconvenience for them to keep the truck over the weekend. I just hope they can cure it. Stay Tuned!

 

[mtnrider]

UPDATE!!! My truck has been at the dealers for two days. Thank God they feel the Shuddering I described to them. They are waiting for some instrument that can read chassis vibration which they will have on Monday. I have other vehicles so it isn't an inconvenience for them to keep the truck over the weekend. I just hope they can cure it. Stay Tuned!

I remember someone else having that measurement device hooked up. If I remember correctly the new gas 2500's have some sort of damper mounted on the frame and that device checks it? It's not on the diesel so not exactly sure where it is but I remember reading about it. I think it looks like a canister of something and it's mounted to the frame to cut down on vibrations

.

 

[Ribtipram]

My 14 1500 had them too.

 

[ScatPakMember]

My '18 3500 has developed a "shudder" or temporary vibration. It happens when I need to accelerate quickly from a stop while towing my 7900lb excavator on a gooseneck trailer. It don't do it if I ease into it from stop. Makes me think transmission.

I just had my '18 3500 diagnosed yesterday and there was indeed an update for TCM, so far the shudder seems to be gone, check with your dealer to see if all is up to date.

 

[Rbertalotto]

I just got a call yesterday to bring my truck into the dealer on Thursday to have the driveshaft replaced.

not sure I believe that is the issue, but we shall see.

 

[RamCares]

I just got a call yesterday to bring my truck into the dealer on Thursday to have the driveshaft replaced.

not sure I believe that is the issue, but we shall see.

Please be sure to keep us updated, Rbertalotto. We are just a PM away if you are in need of any additional support while in service!

Mark
RamCares

 

[Rbertalotto]

Thanks Mark....

 

[Rbertalotto]

Well, just got a call from my dealer that they made a mistake and they do not have the replacement drive shaft for my truck. It is still on back order and they do not have an ETA.

sure hope I can get this issue resolved before I leave on a 6000 mile trip towing the camper in January

 

[RamCares]

Well, just got a call from my dealer that they made a mistake and they do not have the replacement drive shaft for my truck. It is still on back order and they do not have an ETA.

sure hope I can get this issue resolved before I leave on a 6000 mile trip towing the camper in January

Hi Rbertalotto,

If it would be of interest, I would be more than happy to escalate a case on your behalf to connect you with a case specialist who can work alongside your dealer to try and get the part in as soon as possible. Please follow up with me via private message to get the process started!

Mark
RamCares

 

[Rbertalotto]

Thanks Mark,

Ram Cares really does Care!

I'm going to give them a few days to see if they can expedite one before I ask for your help.

The offer is greatly appreciated

Thanks!

 

[Rbertalotto]

Truck was dropped off at dealers yesterday morning (Friday) at 8:30AM. At 5pm I got a call that they replaced the rear drive shaft and it didn't solve the problem.

I'm of the opinion that it is in the transmission. Maybe the lockup in the torque converter is slipping?

Or maybe it isn't locking up at all and under load, 6th gear, the transmission is just slipping?

I told them I'm in no rush to get the truck back and they said they would call me on Monday with more info.

 

[Rbertalotto]

Just heard from my dealer. They now think it is axle shafts. Going to.pull rearend apart to see if anything is bentbor damaged.
Stay tuned

 

[Rbertalotto]

Just heard back from dealer. They are fining lots of play in the differential and side to side play. They are going to order a whole new rear axle assembly.
Stay Tuned!

 

[Rbertalotto]

Just heard from the dealer, they can not order a whole rear axle assembly. They are ordering parts to rebuild the bent housing??
Six days to get parts then a few more to assemble. After a month in the shop I should get it back in time for my yearly, 6500 mile trip to Phoenix and back......Fingers crossed!

 

[Ratket]

Just heard from the dealer, they can not order a whole rear axle assembly. They are ordering parts to rebuild the bent housing??
Six days to get parts then a few more to assemble. After a month in the shop I should get it back in time for my yearly, 6500 mile trip to Phoenix and back......Fingers crossed!

Find out if there are any towing restrictions on those new parts, that way you know to take it easy or not on ur trip.

 

[Rbertalotto]

Good idea...I will ask

 

[mtofell]

Owner's manual break-in for rear axle is no towing for 500 miles and don't go over 50 mph for first 500 of miles once you are towing. At least that's what it is for my 2014.

 

[Rbertalotto]

UPDATE! The truck is back home. Took it in on December 5....Got it back today, January 17!!!!

They replaced both drive shafts and that had no effect. So they decided to replace the rear axles.....no joy. So they rebuilt the entire rear differential. They say that fixed it.
I don't have time tonight to give it a test. Tomorrow I'll hook up the trailer and see how it goes.......

Here is the parts list of the stuff they replaced.....