REPOST - buzzing sound under load ONLY between 1900-2000revs

[MADMAX2]

OK i posted this a while ago and a couple of you said it was the exhaust had a look and nothing is touching or to near the chassis it only buzzes between 1900 and 2000 revs under load through the gears have i missed something?????? why does it only do it then??? you can feel it through the gear knob and the pedals its not loud but very annoying?? 1995 chim 4.0hc

on a positive note im having new carpets fitted end of month so left car out in rain 4 a few hours rained hard put it in garage last night and checked this morning all dry and ready to go wooo hooo the previous owner did say it never leaked!!!!!!!!!

[GreenV8S]

There's a baffle in the exhaust Y piece which is only tacked in place and can come loose, that could cause rattling noises when it hits resonance. But it's hard to diagnose this sort of problem without actually hearing it in the flesh, for all I know the noise is coming from somewhere completely unrelated.