Meron rattling sound I pressume coming from under the dashboard. Medyo malakas ang tunog pag-bagong start ang makina sa umaga then disappears when I turn on the A/C. Also I hear this sound again pagbumabagal ang takbo, Any idea whats causing this "tok-tok-tok" sound? Hopefully pwede ito ng DIY repair para hindi ko na dalin sa casa. And it would be better if someone can suggest a shop that can repair this.

Hopefully someone can help me out, this is getting annoying already.

Thanks in adavnce.