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View Full Version : Clutch & Accelerator Pedals Slightly Vibrate??



Limited GT Ether
01-08-2005, 04:10 PM
Well i'm sure its not normal, but what could be wrong? It is a very very slight vibration in both the clutch and accelerator pedals. I can feel it, but its not visable.

[SEIRYU]
01-08-2005, 04:15 PM
are you using shitty tyres? maybe its just road vibrations dude?

Aströn Boy
01-08-2005, 04:16 PM
what about ure brake pedal when u depress it? feeling it then?

Limited GT Ether
01-08-2005, 04:17 PM
are you using shitty tyres? maybe its just road vibrations dude?

Haha yeah the tyres are ****ty re-treads - they came when i got it. You think that could be the problem then?

Limited GT Ether
01-08-2005, 04:18 PM
what about ure brake pedal when u depress it? feeling it then?

Nah the brake is all good. I feel it most on the accelerator...

Aströn Boy
01-08-2005, 04:22 PM
Haha yeah the tyres are ****ty re-treads - they came when i got it. You think that could be the problem then?
if there really poor quality retreads, it can tribute to crap steering, pedals and handling.
but vibrating pedals, hmm,

Limited GT Ether
01-08-2005, 04:24 PM
Could it be a problem with the accelerator cable? - for the vibration with the accelerator pedal.

Meph
01-08-2005, 10:46 PM
if there really poor quality retreads, it can tribute to crap steering, pedals and handling.
but vibrating pedals, hmm,

Also can contribute to the re-tread rubber detatching from the wheel and making a big mess, particularly if your doing 110km/h

However if it was the tyres then the whole car would always shake. Im thinking more like the engine itself vibrating, maybe engine mounts? Remember that the acclerator and clutch attach to the engine, and the brakes are isolated from that.

No it wouldnt be a problem with the cable Limited GT

Terrorsidic
01-08-2005, 10:56 PM
.... - for the vibration with the accelerator pedal.

maybe its the stimulator pedel....

Aströn Boy
01-08-2005, 11:04 PM
if its both acc and clutch pedal, imo, i'd say for it to be something relating.
gearbox perhaps?
something not engaging properly?
how fierce is it?,
does it register in rpms?
do u lose speed?,
is there a noise?
how long have u had it?,

yeah retreads are nasty full stop. ever wonder why u see so many truck tyres blown out on the side of the road. retreads.
but there huge an expensive tyres.

not like i know manuals greatly, dont really need to. but could it be clutch related?
engine mounts would be more a body/ engine vibration, pedals is abit more precise a problem, my mounts are screwed but the pedals dont vibrate.
brake pedal pulsades due to warped rear discs and a shot left rear caliper.

the more info the more we can help man :D

Limited GT Ether
01-08-2005, 11:29 PM
Ok well I took it out tonight. To begin with there was no problem, then on the way home I could feel it coming through again.

To answer everyones theories and questions;

I don't think its the engine mounts, they seem to be stable, the engine barely vibrates itself when idling at 900 RPM (parked). Plus when she goes I can hear it purr beatifully with no noticable vibrations from the engine bay.

The gearbox, I had this car checked by the RAA before I got it. They said the gearbox was fine, but it does sometimes crunch into second gear, but its fine all through the others and I have had no real problem with it.

Everything engages fine, unless there is something I am unaware of obviously. But to my knowledge everything works like a chalm.

The vibrations are so soft you can only feel it through the bottom of your foot. I don't know how to explain it but its the faintest of vibrations.

It hasn't had an affect on RPMS as far as i'm aware - as I have not driven this car long though, I might not notice something - if its always been a problem. Same with speed. Since I got it I havn't noticed a change in acceleration patterns - as I've never taken it to top speed who knows there. But trust me, I test the acceleration of the car out often enough lol

No noise at all. I never noticed the vibrations before I went on holiday... I came back two weeks ago, i noticed it soon after.

Thanks for everyones help so far, its all greatly appreciated :D

Terrorsidic
01-08-2005, 11:38 PM
wow, 900 rpm is pretty high for a manual :confused:

Limited GT Ether
01-08-2005, 11:43 PM
Its actually slightly lower, between 800 & 900.

Aströn Boy
01-08-2005, 11:54 PM
it could very well be ure tyres by the sound of it. the way u mention it, it sounds like the tyres are heating up, with some retreads they expand, and if there was a gap (area of emptiness) then the air in there expands, causing the tyres to go wonky shape.
however, you mention you dont feel it thru the brake. but that could possibly be due to deceleration..........
im perplexed to this one. sorry, hope you find your answer.
if u have spare wheels maybe give those a try......
goodluck

Limited GT Ether
02-08-2005, 08:48 AM
it could very well be ure tyres by the sound of it. the way u mention it, it sounds like the tyres are heating up, with some retreads they expand, and if there was a gap (area of emptiness) then the air in there expands, causing the tyres to go wonky shape.
however, you mention you dont feel it thru the brake. but that could possibly be due to deceleration..........
im perplexed to this one. sorry, hope you find your answer.
if u have spare wheels maybe give those a try......
goodluck

I'll probably be getting some new tyres on it within the next month or so.

Thanks for your help, i'll let you know what happens and what I find out :D

PeteW
02-08-2005, 09:02 AM
verry strange indeed, id say tyres if i had to guess as theres not enought tension on the accelerator cable and the clutch is hydrolic, your 2nd gear problem is factory happyness, change your gearbox oil it will help mine did it prior to doing so i couldnt downshift to 2nd gear. lol speaking of fixing annoying things my squeaking clutch pedal pissed me off enough yesterday to fix it.

Limited GT Ether
02-08-2005, 10:13 AM
Alright, when I get some new tyres i'll let everyone know if it makes a difference.

I'll change the gearbox oil then :D

haha i hate the sound of pedals when the sqeak too!! Friggen annoying.

Thanks for your help!! :D

Gav
02-08-2005, 11:18 AM
Actually, trailer retread blowouts are due to them being run under pressured.

But, I've had to run retreads on the back of my station wagon before. Boy, was that fun!

(Worn suspension, retreaded tyres...)

Aströn Boy
02-08-2005, 11:29 AM
Actually, trailer retread blowouts are due to them being run under pressured.
being retreads doesnt help the problem, u get enough pressure build up with a weak spot in the tyre and it blows out hella faster than a new tyre :D
i think my sigma has retreads. doesnt really matter tho being offroad rally car.
let us know how u go with this prob, be interested to find out the result.