View Full Version : Vibration...
07-03-2004, 04:07 PM
I am getting a vibration (the entire engine seems to shake) when I start the car, step on the brakes as its coming to a stop, and when it shifts into whatever gear around 55 mph. I would think it to be a lower engine/tranny mount but not sure why the entire front would shake when it is in this gear. (and its not alignment, etc.) Any Ideas? The upper mount is a new (5k miles) polydogbone. And if it was a tranny, I wouldnt think that it would shake when in park. Then again why is it shaking so bad in that certain gear unless its at a certain resonance.
There arent any codes and the timing belt is fine.
07-03-2004, 04:24 PM
The "whatever gear around 55" is your 4th gear. 4T60 shifts like so: 1,2,3,TCC,4 Does the shake go away at a higher speed? If so what is it? If the shake changes w/ speed, I'd say tires. I've even seen brand new tires do it, just a bad tire. (My buddy had 4 sets put on his truck before they got a set that didn't shake. They were pretty cheap, but you get the idea.)
07-03-2004, 04:26 PM
I havent had the nerve to go above 60 with the vibration....it suddenly started so I know it isnt the tires, because they havent been touched in 1k miles. Plus the engine is vibrating while it is in park.
07-03-2004, 05:17 PM
Hows the engine running?
Possibly trans/conv related, I've heard similar problems and it was broken/missing flex plate/conv bolts.
Is there any problems shifting? If it only does it at higher speeds it may be something with the TC lockup.
07-03-2004, 07:50 PM
It shifts fine
The motor just shakes when it is in park too.
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