Engine Mount Service Bulletin

windfrenzy

Has anyone had TSB 03-001-06 or 03-001-07 performed on their car? This is a service bulletin that addresses vibration at cruising speed, but warns that it may increase vibration at idle. I have slight vibration (feels like out of balance tire) at 40+, but am wondering if the fix is worse than the original issue. Thanks.

vg33e power

Never had it done, but I did ask about it when Mazda replaced my broken leaking mount on the right side. They say that the original mount is a hydraulic mount which is why it leaks the yucky oil when it breaks, the TSB you are referring to replaces the original hydraulic mount with a solid rubber mount which in turn is a lot more rigid minimizing vibration at crusing speeds but because of its rigidy it doesnt damper as well as the hydraulic mount when iddling.

5_more

Does the solid rubber mount eliminate the 50mph vibration?

vg33e power

According to the bulletin it suppose to, although I have never hear of anyone opting to delete the 50mph vibration and instead get a more pronounced iddle vibration... as it is our engines are not the most smooth dampened engines. It's a game of give and take...I guess.