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vibration whole car

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Old Dec 6, 2009 | 11:10 PM
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brenson's Avatar
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From: monticello, ga
vibration whole car

vibrates bad in 3rd gear about 3500 rpms and on up do u think it is drive shaft or motor mounts even does it in netural vibrates a little
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Old Dec 7, 2009 | 12:47 PM
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Car info? Does it do it in any other gear, or in neutral?

RPM based vibration can be an engine mount or transmission mount. Speed based vibration can be a u-joint.

http://www.mazdatrix.com/g2.htm
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Old Dec 7, 2009 | 10:45 PM
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if its the drive shaft u joints, the vibration usually kicks up regardless of the guy. I had some bad u joints once and the car would start to rattle itself apart by the time the car would get to 15 or 20 mph.
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Old Dec 11, 2009 | 09:02 PM
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Originally Posted by RotaryRocket88
Car info? Does it do it in any other gear, or in neutral?

RPM based vibration can be an engine mount or transmission mount. Speed based vibration can be a u-joint.

http://www.mazdatrix.com/g2.htm

mine rattles like a **** lol , and arnt the u joints non replaceable ?
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Old Dec 12, 2009 | 12:40 AM
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They're not replaceable, so short of modifying the driveshaft, the fix is to replace the whole thing.
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Old Dec 16, 2009 | 12:39 PM
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vibration

i got the drive shaft re balanced the guy said it was a little unbalanced but he said the u joints looked good so u think it is the motor mounts or trans mount
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