Hey guys, first post here. Wish it was for better things, but this forum seems very helpful. I am also having an whistle under acceleration. Happens with and without the AC on, but happens more often once the engine warms up. Think it is the same issue? I have a dealer visit scheduled for Monday and only have 3K on the odometer (warranty), but still curious. I am a design engineer for Cat so more then curious what could be going on.
I am in 2nd here and you can hear it slightly around 45 mph and then again slowing down.
http://youtu.be/4BT0dX3Z5Hk