Rattle under the dash

[ranjan12]

I’ve been chasing a loud rattle under my dash for a month now and it’s driving me nuts. I’ve tightened everything I can and it still there. I have shaken , pulled and pushed everything I can and no luck. Only happens when I’m on rough surface of any kind. I don’t feel it in the floor, steering or brake pedal. If anyone has any ideas I would be happy to hear them ,Thanks