2015 ram 3500 jerking hard

NinerBikes wrote:

Cummins12V98 wrote:

Bigfoot affair wrote:
steadypraying426 It happens ever so often but today was a biggie. I was rolling to a red light foot off of the pedal and then the light turned green so I push on the gas to continue driving, then it happens. My truck jerks back and forward as if my engine just fell out or something. Truck only has 10k miles on it now. It's like the transmission is slipping hard. Anyone know what this is all about?

Cummins12V98 wrote:
It is NOT a problem. You are at that moment where it drops into 1st that in reality is like having a granny low then immediately it hits 2nd so it causes a jerking motion the harder you are pushing the go pedal the more noticeable it is. It's not slipping and the engine is not falling out.

These Aisin's act a lot like a "built" trans, that is a good thing.

Really, a good thing? OP, I suggest you take it in and have the dealer look at it.

The Aisin trans is not your typical slush box trans that has slippery smooth shifts. They are firm and the op had a situation that can happen when there is such a difference in ratios between 1st and second. Like I said with the Aisin in first it's like Granny low with a stick shift.

Op take it to the dealer if you want, please let us know what they say.

This is exactly what my Touareg TDI will do with an Aisin 8 speed gearbox between 1st and 2nd gear if I don't feather the throttle properly in stop and go traffic. Sometimes you are at an "in betweener" speed where the gears shift. If you get on the throttle too quick, or too hard, this clunk happens. No amount of reprogramming will fix it, the ratios jumps between 1st and 2nd gear are big, 1st is like a low first in a 4x4, 2nd is like 1st in a truck without a granny gear.

Feather the throttle gently with a diesel, problems and clunks mostly solved by educating your foot on proper, gentle application of throttle when first accelerating. Roll your foot into the throttle, don't mash it. The Aisin is a good, tough gear box, don't abuse it, drive it smooth, and it will last a long, long time. Patience.