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Clutch or transmission???

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Old Sep 15, 2008 | 07:44 PM
  #1  
dailydriver's Avatar
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Clutch or transmission???

Hi all,

I have a 2004 RX8 manual. Driving the other day in 4th gear not really going very fast something weird happened. As I stepped on the gas a little to speed up, my rpms went up as usual but all of a sudden they dropped a little and you could hear it as well and then continued to go up as I sped up. So then I tried all gears and around 2500 rpm press down on the gas and it was like something slipping. Is this the clutch or the tranny? Could it be the engine going? Please.. need help.

Thanks!
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Old Sep 16, 2008 | 02:08 PM
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If it was just a matter of your clutch slipping, then the revs should have gone up, not down.
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Old Sep 16, 2008 | 03:07 PM
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It sounds to me its your clutch slipping. Do you drop the clutch at high RPMs most of the time? Do you smell something burning like rubber? How many miles do you currently have in your car?
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Old Sep 16, 2008 | 08:29 PM
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I have dumped the clutch in high rpms but not very often. I have never smelled burning ruber. I have approx. 94,000 kms on the car. I have never been so on edge with a car in my life. What is with these cars?
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Old Sep 17, 2008 | 03:19 AM
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yea,

dumped the clutch, but not very often.. never smelled burning rubber, why would you?

~ 60k miles on a clutch. well that is not so bad for a person that has no clue..

beers
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Old Sep 17, 2008 | 10:29 PM
  #6  
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Ouch! Nasty eh Daily? So what do you think the problem is most honourable professor swoopee-doo swoopee-dee?
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Old Sep 17, 2008 | 10:35 PM
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disc is gone. and likely the pp and flywheel are ruined..

beers
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Old Sep 17, 2008 | 11:01 PM
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Don't think that's obvious from the description of the effect, although that description is pretty confusing.

Daily -- rpm suddenly dropping at speed suggests engine. If it sounds like slipping to you, are the rpms higher than normal at a given speed?
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Old Sep 18, 2008 | 02:19 AM
  #9  
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Originally Posted by Delmeister
Don't think that's obvious from the description of the effect, although that description is pretty confusing.

Daily -- rpm suddenly dropping at speed suggests engine. If it sounds like slipping to you, are the rpms higher than normal at a given speed?

yep,

you are correct.

i was just guessing. not much of a troubleshooter i am..

so what is the problem???

beers
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Old Sep 18, 2008 | 01:02 PM
  #10  
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Some people just hate the world Dal.. I usually just ignore them.

When I press the gas to the floor the rpms start to rise then drop a 1000 or so and something catches and they continue on the way up. It sounds like when you press the clutch while still pressing the gas but the rpms have the opposite effect. If I may add, I was at the drivethru bank today and it was quite echoey. I could hear a rattle when I let out on the clutch but no rattle when I pushed it in. Like metal rattling.

Thanks again..
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Old Sep 18, 2008 | 01:45 PM
  #11  
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Your description is impossibly vague. Does it do the exact same thing in all gears at the same exact RPM? Does it only happen under heavy throttle, or does it happen regardless of engine load?

Any way you cut it, it sounds like you have a relatively serious issue and that the transmission is going to have to come out to resolve it, so just take it to a shop and have them pull it and diagnose the problem.
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Old Sep 18, 2008 | 02:15 PM
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Sounds like the clutch is starting to go. Simple to test it with a quick jab under load, but if the symptoms are not obvious to you it's best left to someone with experience.

Rotary.entuhsiast's recommendation is the way to go: take it in to a shop. They'll test drive and diagnosis it.

Ken
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Old Nov 15, 2008 | 10:35 PM
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The clutch shouldn't take long to engage, so if the revs are still rising a lot quicker than your accelerating after a second or two, the clutch is slipping. Slamming the gas doesn't cause any sort of smell for me either, unless you were slipping the clutch it shouldn't unless it is toast.
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Old Nov 15, 2008 | 10:53 PM
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what did it turn out?

n00bs like that most likely will blame the car this and that when it was as simple as he fuxked it up himself. at the shop he found out that in fact he is a sucker so he gotta suck up the cost and got so pissed on the car and sold it to someone.
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