Rough Idle/ Bucking

[farmingdalesfinest]

I bought a new 2500 Bighorn with the 6.4 engine in November. I have 6240 miles on it as of today.

I have noticed in the last couple of weeks that if I don't warm it up with the remote start as I leave my house or office and the extra time it takes to put the seatbelt and my phone in the charger it often bucks and the idle races. Today it was particularly bad and I started looking for causes. I am about to do my second oil change and came upon a thread about Lubegard for Hemi tick on another site. I looked it up and the one they make for Turbo engines they described in a video almost exactly what I have experienced but the one people are using for the Hemi tick doesn't talk about it. The first oil change was with Mobil 1 0w40 Euro and ordered the Euro Castrol Edge today to see if the idle will be quieter. It's much louder engine than my 14 1500 with the 5.7 but I wouldn't say I have the Hemi tick.

Has anyone else experienced this and what was the solution? Do I have a real issue or does it just need to run a little longer than I have let it sometimes?

 

[farmingdalesfinest]

I bought a new 2025 2500 Bighorn with the 6.4 engine in November. I have 6240 miles on it as of today.

I have noticed in the last couple of weeks that if I don't warm it up with the remote start as I leave my house or office and the extra time it takes to put the seatbelt and my phone in the charger it often bucks and the idle races. Today it was particularly bad and I started looking for causes. I am about to do my second oil change and came upon a thread about Lubegard for Hemi tick on another site. I looked it up and the one they make for Turbo engines they described in a video almost exactly what I have experienced but the one people are using for the Hemi tick doesn't talk about it. The first oil change was with Mobil 1 0w40 Euro and ordered the Euro Castrol Edge today to see if the idle will be quieter. It's much louder engine than my 14 1500 with the 5.7 but I wouldn't say I have the Hemi tick.

Has anyone else experienced this and what was the solution? Do I have a real issue or does it just need to run a little longer than I have let it sometimes?

 

[Trash Panda]

Post a video of what you’re experiencing.

 

[farmingdalesfinest]

Post a video of what you’re experiencing.

I'll try but it happens most often as i am driving away from my house or office and almost immediately I am turning into traffic which would make it hard at the least and ofetn dangerous to pull out my phone and try and film with other cars moving or when it lurches I am trying to make sure I don't hit a parked car.

 

[Trash Panda]

I see.

So it is not behaving this way in park, only when in motion.

 

[sstoner911]

Rough idle and bucking not normal, I would say let the dealer trouble shoot it....that's not oil related.

 

[RamCares]

Hi there, @farmingdalesfinest!

If looking for additional support in combination with your dealer appointment, then please let us know via private message. We're here to help.

Hannah
Ram Cares

 

[RebelForge]

Feels more like a sensor or vacuum issue. 100% dealer trip needed.

 

[mbarber84]

Merged both duplicate posts into this single thread.

@farmingdalesfinest please refrain from creating duplicate posts. If you do so accidentally, please submit a moderator report and request that the duplicate be deleted.

If you have any questions, please feel free to reach out to me or the other admins / moderators.

 

[J.W.B]

Hello Farmingdalesfinest. I joined this forum specifically to find the answer to the problem you have. See my post

Warmup fast idle and surge or lurch in 1 and 2 gear range.​

I can tell you that it is definitely not the oil and you are not dreaming it. I have had mine at (4) different dealerships and the last two definitely confirmed it, escalated it to the manufacturer, where my vehicle now resides on a "list" of known VINs with this issue they have no solution for. It is programming for sure. All vacuum leaks checks etc. performed and there are none. It is PCM driven. When the vehicle starts to buck or lurch simply putting your foot on the brake and "whoa" like an unruly horse, straightens it up. I will share the best dealer tech description I have with everyone. Let's keep this thread alive as hopefully others will join and maybe we can solve it.