This an oddly specific question. 2009 Vibe GT. Does anyone know if the top passenger side motor mount is supposed to bulge at the bottom? I'm talking about the black steel part that mounts to the frame by the coolant tank-the cylinder with rubber in it-is there supposed to be a protrusion/bubble underneath it or does that mean the mount has failed?
Here's why I ask. I have significant vibration between 700 and 1100 RPM. Replacing that one mount (all others are new OEM) seems to eliminate or, at least reduce vibration, but only for a few hours. In that time, the engine gradually sinks lower on that side and the bubble on the bottom gets bigger, to a certain point, and then stays where it is and the vibration is back just as prior.
I figure:
A: the mount (replaced 3 times, OEM) keeps failing for some reason
B: the mount is fine and something else is causing vibration
Please let me know.
Thanks!