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View Full Version : Vibrations? Help please

Brians S13
12-26-2011, 09:09 PM
I own a 91 s13, and when i drive it..it sounds like the motor is way higher rpm than the rpm gauge reads and its vibrating pretty harsh. I looked under the car and im assuming the vibrations have made 3 of my drive shaft bolts fall out, so i replaced those..but can anyone please help with this situation? Thanks.
562s13
12-26-2011, 09:15 PM
motor mounts?? check em
rcdad123
12-26-2011, 09:50 PM
check your fan clutch. if it`s locked up, it will be really loud.
zombiewolf513
12-26-2011, 09:56 PM
You need to be more descriptive.

Does it always vibrate? At certain RPMs? At certain speeds? When you do anything in particular? Stuff like that.

There's a lot of spinning shit in your car that can vibrate.
Brians S13
12-26-2011, 10:27 PM
You need to be more descriptive.

Does it always vibrate? At certain RPMs? At certain speeds? When you do anything in particular? Stuff like that.

There's a lot of spinning shit in your car that can vibrate.

about 2.5 to 3k rpms it vibrates really bad to the point where my shift knob loosens..so i hurry and shift
zombiewolf513
12-26-2011, 10:51 PM
If you're RPMs are ramping but you aren't going anywhere, it sounds like your clutch is slipping.

The vibrating sounds like clutch chatter. Watch this and let us know if this is what you're experiencing:

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Brians S13
12-26-2011, 11:24 PM
its not doing that, it just feels like im way past redline when im actually at 3k rpm
zombiewolf513
12-27-2011, 12:31 AM
Take a video.
project_silvia
12-27-2011, 01:03 AM
is it giving you a CEL ?
c_mancuyas8
12-27-2011, 01:52 AM
Does it only do it under engine load or in nuetral also? If it doesnt do it in neutral or at warm idle im pretty sure you need new mouts. If its shaking as bad as you say it may not be safe to drive.
Brians S13
12-27-2011, 09:44 PM
No CEL, and i'll have to check it in neutral tomorrow, im not sure
Brians S13
12-28-2011, 04:25 PM
Does it only do it under engine load or in nuetral also? If it doesnt do it in neutral or at warm idle im pretty sure you need new mouts. If its shaking as bad as you say it may not be safe to drive.

so if it vibrates in neutral my motor mount may be broken?
Brians S13
12-30-2011, 07:18 PM
on my way from home from work today, i stopped at a red light and revved up in neutral..it vibrates just as much as it does driving, vibrations start at about 3k
fliprayzin240sx
12-31-2011, 02:24 AM
Yah, I'd swap the mounts since its doing it in idle too...if it was only doing it while driving, I was gonna say driveshaft issue.