Econ mode. Rumble. And noise when coming out of Econ mode. Dealer says it’s normal. 5.7. New truck, 4K miles.

[Dodge 1500 4X4]

Mine does the same thing, its normal!!!, be glad you didn't get the eFail.

 

[Dean2]

Our 2020 Grande Cherokee 5.7, and the 2021 2500 6.4, I cannot feel a thing or hear it and I am pretty sensitive to any kind of a change. Only notice I get is the ECO light showing up.

 

[TestPilot57]

2023 Ram 1500, 5.7, 4K miles. Coming out of Econ mode I hear and feel a rumble when the 4 cylinders come back on line on acceleration. Dealer says it is normal.

So, I do get a "burp" when letting off the gas, and I have Econ turned off, as well as Eco-Mode (aka 4-cylinder) by selecting Gear Limit mode.

 

[Docwagon1776]

It is more noticeable with the 8 speed trucks. I can't tell when it kicks on in my 2012 1500 ( now my son's). If I really pay attention I can tell on my 2021 2500. Now with White Knuckle sliders, it's much more pronounced at lower speeds, say 40mph-ish, but still pretty invisible at highway speeds.

 

[TestPilot57]

It is more noticeable with the 8 speed trucks. I can't tell when it kicks on in my 2012 1500 ( now my son's). If I really pay attention I can tell on my 2021 2500. Now with White Knuckle sliders, it's much more pronounced at lower speeds, say 40mph-ish, but still pretty invisible at highway speeds.

I don't think any 5th gens have a 6 speed?

 

[Docwagon1776]

I don't think any 5th gens have a 6 speed?

Not that I'm aware of.

 

[mikeru]

All 5th gen 1500's have the 8 speed.