Weird Noise

[02silveradols]

It got a little chilly around here tonight (50 Degrees) and when I took off from a stop sign i heard a loud vibration. I turned down the radio to listen again. It only does it from a dead stop. Its right when I take off when the tach moves up around 1000. As the truck got warmer it got queiter and dissappeared. It sounds like its dead center in the cluster. Any ideas? Thanks guys

[02silveradols]

This isn't good if I'm the only one with this problem.

[jrrod2004]

That is tough to say, perhaps the yoke? I-Shaft, something loose, that description is very vague....

[DukeMan21J]

explain the sound of it a little more

[2000DV4.8]

When you say "dead center in the cluster", do you mean it sounds like it's inside the truck behind the dash, outside in the engine compartment, underneath somewhere... etc.

 

And "loud vibration". Is it a flapping, knocking, tapping, creaking, gurgling... And is it only audible, or can you feel it too?