Anybody ever have this problem?
I have a dash rattle that only shows up at ~2300 rpm while speed is increasing. It goes away at ~2500 rpm and lasts for only about a 200-300 rpm window. I think it is somewhere in the area behind the radio.
I've heard about the underhood weld crack problem. I don't believe that this is the case here.
I'm just trying to avoid:
1. Pulling the whole dash apart for a rattle (though I might if it becomes annoying enough).
2. Trying to troubleshoot the rattle at 2300 rpm/50 mph with my head under the dash
Any ideas?

 

DO #2!!! lol, if you pop the molding out around the steering radio heat,ac controls etc then take the radio out u can get back to some of the things in the dash i think

 

Since I last visited this post I have more info. I was driving with the window down and noticed the noise was actually coming from the middle front area of the vehicle. It also happens if vehicle is under load, as when starting up in too high a gear. Any ideas?

 

Possibly ur cat. converter??? Mine rattles at idle and rattles more under acceleration

 

Found it! With the help of a friend found the heat shield rattling. It is on the right side of the engine between the exhaust and the starter. Didn't even have to remove it, just tweaked it a little. No more noise.
Now if I could just get rid of that clunking!

 

going to have to check mine. Have had the same type of noise since the trany. maybe bent something?[sm=goodidea.gif]

 

everything in my truck rattles when i go threw a tunnel at around 2300-2500.. but thats just because i have 80 series flowmaster and thats the deepest rpm i love going threw tunnels

 

dandy, loud pipes save lives![sm=pcwhack.gif]