Vibration thru whole vehicle @ 2900RPM

Submitted: Tuesday, Mar 16, 2010 at 20:19
ThreadID: 76930 Views:2694 Replies:5 FollowUps:2
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Hi all, l have a 2002 3.4ltr petrol v6 Prado. There is a vibration that comes in at 2850rpm to 2950rpm. This vibration happens when the vehicle is either stationery or driving. The engine and trans run smooth at all times. I disconnected all the belts and run the engine and the vibration is still there. Has anyone else had this problem or can point me in the right direction at what to look for. Many thanks
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Reply By: Sir Kev & Darkie - Tuesday, Mar 16, 2010 at 20:28

Tuesday, Mar 16, 2010 at 20:28
Have you checked the engine mounts??

Cheers Kev
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AnswerID: 409134

Reply By: Hairs & Fysh (NSW) - Tuesday, Mar 16, 2010 at 20:43

Tuesday, Mar 16, 2010 at 20:43
Could be the harmonic balancer,
Dont know just a thought


AnswerID: 409141

Follow Up By: Member - Axle - Tuesday, Mar 16, 2010 at 20:55

Tuesday, Mar 16, 2010 at 20:55
Ditto,,,,,,, Or flywheel area?


Cheers Axle
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Follow Up By: Hairs & Fysh (NSW) - Tuesday, Mar 16, 2010 at 21:05

Tuesday, Mar 16, 2010 at 21:05
Hi Axle,
I know nothing about Prado's, it just sounds like what one out of whack would do.
This being from my 351 V8 days.




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FollowupID: 679094

Reply By: Mark Howlett - Tuesday, Mar 16, 2010 at 22:14

Tuesday, Mar 16, 2010 at 22:14
Don't worry, it's a characteristic of that vehicle! If you search on Pradopoint, you'll find an old thread about it. There are various theories, people have changed exhausts etc but as far as I'm aware, there isn't one single thing to fix it.

Mine had 140,000km when I bought it, now over 230,000km. Still vibrates, hasn't got worse, in fact I barely notice it there now but was obviously aware of it when I first drove it. It certainly doesn't vibrate the whole vehicle!

Cheers,

Mark.
AnswerID: 409159

Reply By: Nutta - Tuesday, Mar 16, 2010 at 23:03

Tuesday, Mar 16, 2010 at 23:03
I've heard complaints about the earlier v6 commodores having a vibration, apparently it couldn't be corrected.
And even the early v6 ford capris i think did the same, that was a major reason why they never made v6s back then.
Anyway, i could be wrong.

Cheers Wayne
AnswerID: 409166

Reply By: Member - Alanc - Wednesday, Mar 17, 2010 at 01:40

Wednesday, Mar 17, 2010 at 01:40
My 2001 3.4ltr Prado has a vibration that comes in around 1800-2000rpm and again 2800-2900 , the later vibration is very. As stated previously its a well known characteristic of this motor and there appears to be no easy fix. I even changed the engine mounts , it made no difference so I now have a spare set of mounts.
Like everyone else you will have to try and ignore it, BUT, if you find a solution please lets us know.
Regards
Alanc
AnswerID: 409175

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