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Short burst of vibration while driving. NEED HELP

 
Old Apr 6, 2019, 04:58 AM
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Exclamation Short burst of vibration while driving. NEED HELP

Hey guys, new to the Ralliart family. just bought a 09 model then later realised it has the short one to two seconds vibrations while cruising and using minimal throttle. The vibration only happens between 30 khp to 70 kph, and there is no vibration when accelerating fast.
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MinusPrevious (Apr 6, 2019)
Old Apr 6, 2019, 05:36 AM
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Alright, welcome aboard Aziz Nasery

Im a EvO9 owner but wonder if what youre experiencing is just simple out of wheel balance? Are you getting steering wheel shake at speed?

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Aziz Nasery (Apr 6, 2019)
Old Apr 6, 2019, 06:07 AM
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There isn't any noticeable or out of the ordinary wheel shake at any speed, just vibrations when keeping at 40 to 70 kmh which seems to be coming from the back of the engine bay where the turbo sits.
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MinusPrevious (Apr 6, 2019)
Old Apr 6, 2019, 08:05 AM
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How many KM's on the drivetrain? Wonder if a motor mount has let loose?
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Old Apr 6, 2019, 08:14 AM
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You sure you're not driving in too high a gear with the amount of load youre putting on the engine?
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Aziz Nasery (Apr 6, 2019)
Old Apr 6, 2019, 12:12 PM
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Bad wheel bearing.
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Aziz Nasery (Apr 6, 2019)
Old Apr 6, 2019, 06:47 PM
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Originally Posted by MinusPrevious View Post
How many KM's on the drivetrain? Wonder if a motor mount has let loose?
currently sitting on 95000 km's, only thing the confuses me is that it only happen between certain conditions and speed such as minimal throttle and speeds between 40 to 70
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Old Apr 6, 2019, 06:57 PM
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Originally Posted by Aziz Nasery View Post
currently sitting on 95000 km's, only thing the confuses me is that it only happen between certain conditions and speed such as minimal throttle and speeds between 40 to 70
Thats not that many miles. Was thinking that it could be a CV going bad?

If you havent yet, put it up on jacks & pull both front wheels & inspect the axle & CV's. And check your front bearings (as noted by Jason), as well, with the wheels on
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Old Apr 6, 2019, 07:07 PM
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Originally Posted by Raikiri View Post
You sure you're not driving in too high a gear with the amount of load youre putting on the engine?
It's the sst transmission so i mostly just drive it on auto
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Old Apr 6, 2019, 07:11 PM
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Originally Posted by kaj View Post
Bad wheel bearing.
I'll get it checked and see how it goes.
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Old Apr 6, 2019, 07:13 PM
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Originally Posted by MinusPrevious View Post
Thats not that many miles. Was thinking that it could be a CV going bad?

If you havent yet, put it up on jacks & pull both front wheels & inspect the axle & CV's. And check your front bearings (as noted by Jason), as well, with the wheels on
Thanks mate i'll do that and see how they preform.
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Old Apr 6, 2019, 10:10 PM
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Originally Posted by Aziz Nasery View Post
I'll get it checked and see how it goes.
I may have misunderstood. Does it "pulse" or is it continuous? Does it stop when you turn the steering wheel either way?
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Old Apr 10, 2019, 03:37 AM
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Originally Posted by kaj View Post
I may have misunderstood. Does it "pulse" or is it continuous? Does it stop when you turn the steering wheel either way?
It stops when i let go of the accelerator and during turning no issues.
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Old Apr 10, 2019, 03:40 AM
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Originally Posted by Aziz Nasery View Post
It's the sst transmission so i mostly just drive it on auto
I realised that if i drive in the 5 gear between 40 to 80 kmph there is no issues. only when in 6th gear and in between 50 to 80 kmph. Any way to fix this ?
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Old Apr 11, 2019, 11:54 AM
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You shouldn’t be in 5th/6th gear at that low a speed Sounds like the trans doesn’t know what gear it should be in since you drive in auto. Get a sst fluid flush and a teach-in done and see if that helps
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