Wonder if its just dead pedal your experiencing? Ive driven some that are just worse than others. Mine has it. Actually every stock diesel ive owned had it to a degree. My rams I had didnt, but they had smarty programmers.

 

You may need to look at your receipt to see the specific things that were fixed or addressed in the previous visit.

 

On my 2024 GMC Sierra, the gas pedal (diesel pedal? 😂) is just very sensitive, so you just have to give it a slight tap from stopped and it'll smoothly go, and go well, including entering rotaries (traffic circles) and highways. Push down too much and it'll hesitate and/or jerk. Took a little getting used to just like with any vehicle that is new to you; they often have a pedal that's different from what you're used to. Try adjusting the amount of pressure you use on the pedal and see if it helps.

 

I think what you're experiencing is turbo lag when significantly adjusting fuel rate. There will be a delay between pedal input an engine performance in a turbo-diesel. The bigger the difference in the pedal input, the longer the delay will be. What's going on is that from a dead stop, the turbo needs time to spin up to force more air into the engine so you can burn more fuel. Once it's caught up, it will take off with a lot of acceleration. When there's a really big shift, it almost seems like the engine wants to prep the turbo for the huge acceleration rather than provide much at all until the turbo is ready.

What I do is I gently go through the pedal to a deep push (e.g. getting on the freeway). I'll take as long as 2-3 seconds to push the pedal down to where I want it. That way there isn't an instant demand for air that the turbo has to catch up to, instead there is a longer increasing demand that it can keep up with. When passing, I'll make the push closer to 1.5-2 seconds which the truck can barely keep up with. I know that if I push the pedal faster, I'll get a delay then the rockets will engage.

Turbo-Diesels don't drive/respond like gasoline engines, so you'll need to adjust how you drive it to get what you want out of it.

 

Thanks for all the thoughts and responses. The dealerships says it’s fine so we’ll see.

 

I have a 2024 3500 with a couple thousand miles and it is doing the same thing but no check engine light. It's happened about 4 times now. I haen't had it in to the dealer yet.