Quote:
Originally Posted by tinypanzer
Yeah, could be a vacuum leak but it sounds like textbook motor mount symptoms. i believe the seat thing was recorded in a test conducted by a magazine when these cars were new.
-tp
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i have felt this vibration from time to time in my 420sel. it is a weird frequency totally out of tune with any other kind of idle grumpiness. its kinda like how the passenger seat can be moving up and down real fast on a totally smooth road.