has anyone had a problem with there titan not wanting to accelerate? I took my titan to the dealer and they said my back tire was very low on air and said that would cause the traction module to kick in and not allow truck to accelerate. Does this sound right? I was driving on the interstate about 70mph and just started to slow up just a little bit, when i would try to give some gas it would bump like no fuel was getting to the engine, or bad gas, truck would not accelerate. Any help would be greatly appreciated. not that i dont believe the dealer it just doesnt make any sence to me, but i am not mechanically inclined either. thanks for any help.