That's why you can trip the trans up slightly by transitioning from brake to throttle too abruptly from a dead stop. You can make it "hiccup" a bit.After coming to a stop at a stop light and sitting, tranny is completely disengaged to save gas. If you lift off the brake pedal slightly you can feel it re-engage so that it's ready to creep or accelerate as needed, that might be the little bump you are feeling (I certainly could feel it).
I've felt it a number of times when fully stopped. I've actually looked back to see if someone slightly bumped me - that's what it feels like to me.
I thought the same thing when I saw that comment here. If that were the case, why is it you can feel the drivetrain straining slightly to move the vehicle as you decrease pressure slightly on the brake? This torque converter functions pretty much the same as any other, it's use is just far more limited than in a conventional TQ automatic.Anyone have proof that the transmission disengages while in drive at a stop or is this just an assumption? I can't detect anything like this on mine and I've been paying attention since I read this thread a while back. I'll stare at the tachometer needle and it's as steady as can be.
After everything is at operating temp, while stopped in D for a short time with no AC on, try shifting into N and see if you can tell that the drive train unloads - I can't which indicates to me that it is already effectively in N since that is what the design logic says it does...
I've felt it a number of times when fully stopped. I've actually looked back to see if someone slightly bumped me - that's what it feels like to me.