Hey guys, quick question for you, so I was shuffling around the family's cars today but when I started my mother's 2008 Equinox there was a nasty noise and the whole vehicle vibrated for maybe 1/3-1/2 of a second. Then when I put it into revers it started vibrating again but constantly, when I accelerate in reverse it decreases until there aren't any vibrations and it doesn't do this in any other gear. I know for sure that the car was in park when it was turned on (I checked, you never know) and all other conditions seemed to be normal. I was browsing the net and a Honda forum had a guy with the same problem and they told him that it was the rear motor mount. Anyway what do you guys think? I can't imagine why this would have happened and I don't think it's the transmission because: A. It was in park so why would the reverse gear get torn up and B. Transmissions are expensive and that would really really suck. Anyway tell me what you think, thanks.