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Help Car violently vibrates on acceleration.

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Old Apr 1, 2014, 07:13 PM
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Help Car violently vibrates on acceleration.

So here's my dilemma. I recently purchased a used evo 8 40,000 miles. Few weeks later rear diff locks up. Now months later I replaced the rear diff, upgraded to a Shep stage 2 t-case, replaced the output shaft, cv axle, Abs module, and ACD pump. The whole time the cars been at the dealership running into numerous problems. ACD issue is now fixed, see ya later 3 lights of death. My new problem is I test drove my car today and it shakes violently in all gears at all speeds. I am a new evo owner and I love this car, just wish I could get it back to its normal self. Any advice or help on this major problem I'm having will be extremely helpful. Thanks in advance.
Old Apr 1, 2014, 07:33 PM
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Engine runs smooth as silk? Neutral for instance.
Old Apr 1, 2014, 09:40 PM
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Sounds like something didn't go back together quiet right. Get it up on jack stand and spin the wheels/axles and such to make sure nothing is binding up
Old Apr 2, 2014, 12:27 AM
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check motor mounts
Old Apr 2, 2014, 10:23 AM
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Cv axles. To replace the rear diff and trans case, all of them have been touched, so..... Could be any of them.
Old Apr 2, 2014, 12:19 PM
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Originally Posted by J_Striker
Cv axles. To replace the rear diff and trans case, all of them have been touched, so..... Could be any of them.
Yeah I called them this morning and told them to check those first.
Old Apr 17, 2014, 06:41 PM
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Problem solved the drive shaft was missing a nut and the other to weren't even tightened. Ridiculous!
Old Apr 17, 2014, 08:48 PM
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wow, dealerships for ya! you should make a big deal about it
Old Apr 17, 2014, 09:31 PM
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i got my car back from the body shop.... they dropped my entire rear subframe to repair a damaged frame rail after being rear ended... my ds bolts were all hand tight at best and it only shook when above 80mph decelerating... it did clunk on gear engagement but i assumed it was the recently installed solid diff mounts... glad you figured it out...
Old Apr 18, 2014, 12:09 AM
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Sorry for thread hijacking, need help in solving driveshaft play! There is alot of play, replaced the two driveshaft carrier rubber bearings & also have the torque solution bushings fitted...
Old Apr 18, 2014, 10:34 AM
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Originally Posted by slowsrt4:(
wow, dealerships for ya! you should make a big deal about it
Yeah I did!
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