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Old 15-04-2006, 11:49 PM   #1
carratt
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Default what the hell is that noise

hey guys
I'm hoping that someone can help me out with this one.
For the last couple of weeks my car has been making a high pitched squealing noise when ever the car first takes off and stops once its hit somewhere around the 3000rpm mark. Once its hit that mark it wont happen again until the car has been turned off for an hour or so than started up again. This morning when I was driving I figured that I'd plant my foot so the car would drop back a gear and quickly hit the rpm needed for the noise to dissapear, but the weirdest thing happened. The car sounded like it dropped back a gear and the rpm increased but it took about 4 seconds after this for the car to actually feel like it dropped back a gear (hope that makes sense lol).
what the hell is going on????

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Old 16-04-2006, 12:39 AM   #2
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Might be a fanbelt sqealing.

I also have a strange noise that starts if I go over 180km/hr. I discovered this on the drag strip. I had a few runs and all was fine, then on the 3rd or 4th run it started making the sound as soon as I go over 180, then as soon as I slow down below 180 the noise stops. This clip isn't the best but its the only one I have, the mic is a bit sensitive so there's a bit of background noise, but you can still hear the high pitched sound.

Click here for the clip

Last edited by Tornado; 16-04-2006 at 01:00 AM.
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Old 16-04-2006, 01:11 AM   #3
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aint the handbrake is it ? maybe
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Old 16-04-2006, 01:27 AM   #4
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hey tornado, thats the same sort of sound that mine is making (except its when I first start the car and take off).
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Old 16-04-2006, 01:31 AM   #5
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A mate of mine had a similar squeal in his AU2 XR8. He thought it was the fan belt, turned out to be the water pump. Worth getting checked if it is the water pump - though the 6 should be OK with failsafe cooling, the V8 will detonate if it gets no cooling water.
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Old 16-04-2006, 01:34 AM   #6
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Quote:
Originally Posted by carratt
hey tornado, thats the same sort of sound that mine is making (except its when I first start the car and take off).
It does sound like a slipping fanbelt, but mine only makes that sound when I am doing over 180.
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Old 16-04-2006, 01:34 AM   #7
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It sounds like a dry / worn pully or something slipping

Last edited by DOC; 16-04-2006 at 01:36 AM. Reason: added worn
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Old 16-04-2006, 02:31 AM   #8
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it could and sounds like the torque convertor whinning
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Old 16-04-2006, 07:17 AM   #9
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Anyway of testing if it is the torque converter ?
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Old 28-04-2006, 11:50 AM   #10
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Update
I got my car back yesterday from the machanics and the prob was that there was a leak coming from my rocker cover which was dripping on a belt causing the squel. Nice easy fix, yay
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Old 29-04-2006, 05:32 PM   #11
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Since I never normally drive over 180, I haven't done anything about mine.
I wonder if it will do it on a dyno ?
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Old 29-04-2006, 06:32 PM   #12
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I got 180 in darts the other night :hihi:

Yesterday Brad when i saw you coming in the opposite direction, I was thinking, I know that car from somewhere. :
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