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1998 - Shaky When Revving

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Old 10-02-07, 08:12 PM
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black_LS
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Default 1998 - Shaky When Revving

I'm having a problem with my 98 that I'm pretty concerned about. When the car is idling (in park) and I rev the engine, I can feel a strong vibration, more so when the RPMs are coming back down. It's shaky in the steering wheel and gives of a very aggressive sound. I can also feel this a bit when driving.

Input is appreciated. I'd like to know what to expect before taking it to the shop.

Thanks
Old 10-02-07, 08:26 PM
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Originally Posted by black_LS
I'm having a problem with my 98 that I'm pretty concerned about. When the car is idling (in park) and I rev the engine, I can feel a strong vibration, more so when the RPMs are coming back down. It's shaky in the steering wheel and gives of a very aggressive sound. I can also feel this a bit when driving.

Input is appreciated. I'd like to know what to expect before taking it to the shop.

Thanks
rear trans and maybe motor mounts.
Old 10-02-07, 08:38 PM
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black_LS
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I thought that as well since I hear a clunk (usually 2) when I come to a fast stop in drive or reverse.

Any other theories?
Old 10-02-07, 08:50 PM
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Originally Posted by black_LS
I thought that as well since I hear a clunk (usually 2) when I come to a fast stop in drive or reverse.

Any other theories?
do the rear trans mount, it requires basic tools and a torque wrench (and obviously jack stands+ a jack) and it only costs like $40

il have a write-up on how to do it soon (i needa get time from school )
Old 10-02-07, 08:52 PM
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sonyman
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Remember what I said about inheriting others' problems? This does sound like mounts, however, which is a simple fix.
Old 10-02-07, 08:52 PM
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Oh.. it's a DIY thing? Good stuff, I'll wait on that then.

I'm also waiting for the rest of the aux-input tut.

Thanks

EDIT: Nvm, looks like you already took care of that.

Last edited by black_LS; 10-02-07 at 09:00 PM.
Old 10-02-07, 09:02 PM
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trans mount is a silly easy job, i did it on my lunch break at work. use the spare tire jack to keep the rear of the transmission in place while you unbolt it. it's so easy i could just die, it's easier than an oil change, it's easier than a drunken college chick, it's sooo easy
Old 10-02-07, 09:59 PM
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Suneet
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Is it that easy for the first gens? I don't think so...
Old 10-02-07, 10:11 PM
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Originally Posted by Suneet
Is it that easy for the first gens? I don't think so...
yup, same basic procedure
Old 10-02-07, 11:27 PM
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that easy??

Can't wait for the DIY post...
Old 10-03-07, 04:58 AM
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100% sure its the trannt mount, I had the same problem, felt like the driveshaft was bent.
Also change mmotor mounts, you will be amazed how smooth things will get.
Old 11-17-07, 02:18 PM
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black_LS
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FIXED!

Changed the trans mount in my driveway today... NO MORE VIBRATIONS. I didn't even do the engine mounts yet... will wait till after winter.

Thanks all.
Old 11-17-07, 07:16 PM
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A write-up with pics would be very appreciated.
Old 11-19-07, 06:31 AM
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No pictures, but they're not required.

Basically.. put your car up on jacks/blocks (2 front corners) and support the transmission with the jack. Then it's just a process of removing scews/bolts, replacing the mount, and putting them back where you found them (some screws differ).

Not much skill required at all. In terms of tools, you just need a wrench and 3 sockets.
Old 11-19-07, 08:48 AM
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Just want confirmed. The the tranny mount on the rear side of tranny pan?


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