Do I need to replace motor mounts again??
 

I replaced the motor mounts on my car last year. Since then I have put about 12k miles more on the car. The car is vibrating again. It is only noticeable when idling. Especially when I start it up during a cold Northeast morning. I checked the alignment on the balance shafts since it was due for a retension after 20k miles. Everything lined up fine. The shake disappears if I bring the idle higher than 1500 rpm. No vibration while driving. I crawled under it the other day to see if I could see it shaking when I started cold, but could't see anything. also put my hands on the motor and the clutch housing but could not really feel anything. But when I sit in it I can feel it. I thought once i replaced the mounts, I was set for a long time. These were a PITA.


John
86 951

Well, im no mechanic but when your motor mounts are shot if not do to age, then it's the chasis. Was t your car ever hit? All it takes is a nudge to throw them off. You might have to keep replacing them until you fix the chasis. BUT, dont listen to me. This is what I heard. Wait, for one of the pro's here to reply, ok? Good luck with it!