Hi all, I have a 2009 Fit Sport with an automatic trans and am having trouble fixing this noise. It is a metal to metal grinding that starts around 20 mph and happens whenever I am accelerating or if I am going down hill with my foot off the gas. I have replaced both front axles and the passenger side wheel bearing on front . The noise doesn't seem to change any at all while I turn but does get faster as I speed up . Any help with this problem would be greatly appreciated. Thank you for your time. Let me know if you need anymore info on this problem

 

I have a 2010 that I recently purchased used and I am not 100% sure we are experiencing the same thing but I think we are. I don't know if this is related at all, but I know the dealership before i got it put 0w20 oil in it, and then when i got my first oil change same thing and a trans fluid flush and the sound didn't go away, but just recently i decided to do my own oil change and I went with 5w20 instead and the noise is completely gone. Again I am not sure if it is related to the oil change or not, but it sure has completely stopped since then.

 

I had a similar problem when I put 5-20 in my 2011 Fit Sport. Switched back to 0-20 and no more noise. I would say stick with the fully synthetic.