Hi everyone, hope someone can help. I've been reading in the forums trying to find mention of this and can't seem to find anything.
95 Bonneville SSEi.
When I accelerate hard, I have a dramatic grinding noise, and I've determined that my engine is deflecting significantly - I'm sure it'* just engine vibration as it touches somewhere it'* not supposed to. I've replaced the upper engine mount on the passenger side, but I'm pretty sure that I've got to replace the hydraulic damper (what'* the proper name for it) on the lower driver'* side in front. This one is $220 Cdn from Lordco here in Canada - pretty pricey. It seems it might be prone to failure - can anyone comment? Is there an alternative more durable available? If not, can anyone recommend a less expensive place to get one?

Are there any other mounts which may be broken? When I bought the other one, I also got a really simplistic looking one, completely symmetrical, about 6-8" long with a bolt hole in each end, but can't seem to see where it belongs. I searched for photos to help but to no avail.

Thanks for any info you can provide.

You can get the hydraulic mount from DrJay, he runs www.seriesoneperformance.com. It should be a lot less than $220.

The other mount maybe sounds like the rear tranny mount. Easily seen from underneath, on the passenger side, back corner.

As for what is actually making that noise, I don't know without looking at it.

i just had the same problem last week and it was the left front engine/tranny mount.got on from a jobber that cost only about $100 cdn instaled..(how ever one of my best friends is a mechanic) with it replaced the grinding went away and the car seemed to take off alot faster