oh for crying out loud.
sometimes i feel like a complete idiot. luckily, the net is fairly anonymous
i just had an epiphany....i've been trying to record the sound...but i don't think i need to..
whenever my truck sits for a bit...12 hours or so....when i first start it up, there is "the noise", but only for a couple seconds. that is the same noise i've been hearing. but again....the only time i hear it is when i am driving, over 2000rpm, and feathering the throttle.
let me add two more things....and they have to do with all the in-town driving I do.
I tried my cruise control and it doesn't work. (a battery leak two years ago ate away the vacuum line and part of the outside case of the cruise solenoid. i think more of my vacuum line has rotted away...again)
also...a few days ago, i really put my foot down to get into traffic. according to the tach, i went into the red by about 500rpm until i let off....i don't think it would have ever shifted if i hadn't...
i hope those two things don't confuse matters. i don't have the tools which is why i've had two separate stealerships look at it and they said nothing was wrong (i suppose it's because it never generates an error code)