ok, so i started hearing a grinding noise from my computer and i thought it was just dirty and i went online to out how to do that. i came upon this website and found out that here you can find out about anything when i came to DIY. well the grinding noise was got worse and worse and found out that the right fan was the cause and it was a common issue to this version of the macbook pro. so ig ot the part and just put it in. its so quiet now as it was when i bought it. thank you for being here. i love this website. this is so user friendly and am already recommending this website to all my friends.