Hello!
Car is Mazda Xedos 6 1995 V6 2.5l.
Same as in 626, MX-6 or Ford probe = )

I have strange vibrations on idle from the engine that feels in the car chassi and seat. mostly around 1300rpm . Its like wrrr....wrrr....wrrr...wrrr

New spark plugs and cables.

Could it be the mounts?

THANKS! = )

 

Does it do it when the AC is turned off?

 

It could be caused by damaged transmission mounts.