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Symptoms of broken motor mount?

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Randomrage

15+ Year Contributor
401
1
May 26, 2004
Winston-Salem, North Carolina
I was putting the car through her paces a bit yesterday, recently rotated the tires, changed the oil, etc etc. Wind it up to seven grand, and throw it into second and

BLAM!

The hardest 1-2 shift ever. Hard enough to blur my vision, and I actually head a loud noise from somewhere under the car. Both tires barely broke traction. 2-3 shift, nothing, completely normal. So I baby it the rest of the way home, looked around under there, saw nothing out of the ordinary, and tried again today. Nothing, completely normal. Oh, and the n2o was off both times BTW. I have no idea what that was all about. First thing that popped into my head was synchros, but its not grinding or anything, and shifts 1-2 fine. Second thing I thought was motor mount. The motor is not sitting crooked, or twisting a lot when I rev it. Is there anything else I should look for? What do you guys think it was?




:dsm:
 
When I had my motor mount in the front broken the whole motor would shake alot. Most of the rubber was gone too.
 
Put it in 1st gear as you are driving in a parking lot (more torqey gear) and as you are rolling floor it and let off like if you were trying to toss someone back in their seat. When it jars you back you should hear a clunk in the engine bay. This is usually the symptom of a loose motor mount. Or you can just physically get in there and look at them.
 
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