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Engine mount and shifting


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So, for several years I have been dealing with shifting problems on my boxster. Hard shifting from first to second, especially when it's cold. Sometimes it would grind. Sometimes it would pop out of gear. I wrote this off to the transmission syncros going bad and figure I would just deal with it until it got so bad I needed to replace the tranny.

A couple of weeks ago, my water pump failed. While I had the car up in the air and torn apart, I inspected the engine mount because I knew it was a problem area. I could see cracks in the rubber, so I decided to replace it. I am now estatically happy at the results. I can't believe the difference in the shifting. It is like the tranny is brand new again. Crisp, clean shifting.

I just thought I would share this, in case someone else out there is having the same shifting problem.


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It isn't a tough fix, but is easiest on a lift where you can move freely underneath it. You don't have to remove the two top bolts on the engine side, just loosen them. When you get the new mount in your hand you'll understand. It took about an hour, on a lift, maybe an hour and a half on jackstands.

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  • 2 months later...
  • 1 month later...

I have a question on this as well. My shifting on my 02S with 32k miles has never seemed right to me. I changed the transmission fluid to no avail. If the car is sitting stationary it feels like butter but whilst driving it just fights me sometimes. Is this typically a symptom associated with a weakening motor mount?


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Mine was... notchy going into first, and I would sometimes grind the 2/3 shift. Part of it was cured my changing to royal purple gear oil, but as soon as I dropped the plastic cover I could see the mount was worn. I believe the 987 part supersedes the 986 part. If you take a look at the pictures I posted above There is a difference. The mount "wears" with the weight of the engine siting on in the donut and causing the bottom to compress and the top to tear. Mine shifts like new after the mount change and the gear oil change.

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