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86 Rx7 vibrates when Im on the accelerator?

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Old 10-08-13, 05:09 PM
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86 Rx7 vibrates when Im on the accelerator?

Every time I step on my accelerator car vibrates...What is wrong? U guys have been great...Thx
Old 10-08-13, 06:05 PM
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can you be more specific?.
like where the vibration is coming from,what it feels like?.
From just that blurb you posted it could be anything from engine mounts to Drive shaft U joints.

My car makes noise when I start it..!!(chuckle!)
Old 10-08-13, 06:44 PM
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I can feel the vibrations on my stick & accelerator...only when I accelerated? I take the car out of gear & no vibration...basicly It's vibrating everything inside...
Old 10-08-13, 06:52 PM
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jack the car up and check the driveshaft joints. even if there is no slack it does not mean one joint isn't binding up, and the shaft would have to be removed to verify it.
Old 10-08-13, 07:18 PM
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So u saying the UJoints might be bad? MazdaTrix said the UJoints are part of my driveshaft & I have to buy a driveshaft...is that true?
Old 10-09-13, 12:11 AM
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Originally Posted by jordanroda
So u saying the UJoints might be bad? MazdaTrix said the UJoints are part of my driveshaft & I have to buy a driveshaft...is that true?
Look into that..more...
you can get the U-joints replaced at any competent driveshaft shop.
You can also get a used driveshaft on the Forum here,in the Sec Gen Parts Section.
Old 10-10-13, 07:08 PM
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Just great...replaced driveshaft & car still vibrating...what's next motor mount or tranny mount...
Old 10-10-13, 07:09 PM
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& they did say UJoints looked bad...
Old 10-10-13, 07:23 PM
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check the engine mounts, transmission mounts and the differential mounts as well as the CV boots for tears.

and did you check the replacement driveshaft? they are quite old and it isn't impossible that the replacement might have seizing joints also, unlikely though but still possible.
Old 10-11-13, 07:44 AM
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The shop got a rebuilt driveshaft...Maybe defected driveshaft? Anyway the boss gonna check car the today...wish me luck & Thx guys...
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