Another question from a new Ram owner. When I stop at a light or stop sign, take my foot off the brake and let the truck roll forward (without me giving it gas) it feels "jumpy," for lack of a better term. If I apply the brake or give it gas it goes away. It's pretty subtle, almost like an irregular idle, but the RPMs don't jump. Anybody have an idea of what it might be? Anyone else's truck doing the same?

Thanks guys!

 

Have you got the defroster or AC on?

 

Nope, it happens all the time.

 

Then its probabally just the torque convertor thinking about engauging

 

It's a very slighty jerking or pulsating feeling, right? How about when your foot is still on the brake pedal and you let the car roll so slightly? If so, mine is the exact same way.

 

Yep, that describes it perfectly. Torque converter?

 

These trucks have a 2 stage torque converter...
The torque converter is most likely coming out of "partial lock-up" at first sign of movement from a stop.
Ther is nothing wrong with it, its supposed to do that. Some more noticable, some aren`t.

 

Mine does the same when you let of the brake just enough to move. Has done it since new. I assume this is normal since other trucks mentioned here do the same. Also surges when going down hill in cruise control which others have said they experience the same, so I am assuming this is normal too. Truck runs strong.

 

Keep in mind we have 390 hp engines with 400 someting torque. I have the hill start assist set on and the thing still surges foward on a hill.

 

Did anything ever come of this? Wakepics?
I just bout an '09 with 40K and it's doing the same thing. First I thought it was horribly warped rotors, but it only does it just as I'm coming to a stop. If I'm on flat ground or on a very slight incline, it will do it when I let off the brake, but stop as soon as I accelerate.