Hi got a 2006 Honda Accord V6 have been hearing some sort of ratteling noise or how should I describe it like the sound of crickets in the summer.
Went 3 times to dealership they gave me a letter explaining gas that this could cause it if I dont buy better quality gas. well i went to Exxcon and Mobile which they had suggested instead of Hess or 711 and it is STILL making the noise. The noise ONLY happens when I accelerate and it is to the point it really ruins the smooth ride I normally have with the Honda. The noise is annoying me totally.
Any suggestions because it seems like they are clueless!

And any suggestions about the following problem?
I also notice lately when the automatic shift, shifts at around 20mph I can actually feel for a brief moment a jerk movement. Is that normal? Should I be feeling the shifting that drastically? It only happens in that speed.

Thanks,
Manuela