R32 Gtr - Transmission Problems

[sinstr]

Hey all,

I was wondering if anyone could give me any insight into what may be the problem with my r32 gtr.

I was driving it over the weekend and it started making a loud knocking sound which sounded like it was coming from around the middle of the car. The sound appeared after driving the car normally (wasn't booting it) and it would increase in frequency the quicker I was driving. After pulling over the sound would stop and it wouldnt make any noise from just revving the car.. Only when I was rolling or moving...

So after this I started to head home about 5 mins later the sound disappeared.. After driving the car since this happened I havent heard the sound again.. Anyone have any ideas on what this might be? I was thinking uni joints but I am probly way off..

Cheers,

Mitch.

Edited September 28, 2008 by sinstr

[sinstr]

Anyone???

[__PhaseShiftDown]

Might be your clutch. If you disengage the clutch while the car is moving, is the sound still there?

[sinstr]

Yea, sound was happening whether clutch was pushed in or out.

Just seems weird, I have been driving car for days now since sound occured (happened on Saturday) and it hasnt re occured at all, I am just a little worried as it was a very loud noise so obviously something is wrong, just dont know where to look.

[SSHatch]

So it was only making the noise while the car was moving??

Didnt matter if the clutch was in or out??

The noise changed as the speed got greater or less??

The noise stopped when you stopped moving??

Sounds like you may have picked up some crap in your tyres or possibly got something caught in the driveshaft that has since parted company with your vehicle if the noise is no longer present.

this is a great trick in the workshops... Wack a rubber band around the tailshaft with a nut on it. As the speed increases the nut flies further from the tailshaft tilll it eventually start "tapping" against stuff. When ya stop and look under the rubber band has contracted and you cant see it on the tailshaft.

[sinstr]

So it was only making the noise while the car was moving??

Didnt matter if the clutch was in or out??

The noise changed as the speed got greater or less??

The noise stopped when you stopped moving??

Sounds like you may have picked up some crap in your tyres or possibly got something caught in the driveshaft that has since parted company with your vehicle if the noise is no longer present.

this is a great trick in the workshops... Wack a rubber band around the tailshaft with a nut on it. As the speed increases the nut flies further from the tailshaft tilll it eventually start "tapping" against stuff. When ya stop and look under the rubber band has contracted and you cant see it on the tailshaft.

Yea it was only making the noise whilst moving, didnt matter if clutch was in or out, and the noise sped up as I was moving faster (noise was probly louder when driving slow), noise was there whether in gear or in neutral and rolling and yes noise completely stopped whilst I was not moving.

I once had had a screwed diff / uni's in my old car and the noise was much like that, although it didnt sound like this noise was coming from as far back as the diff...

Edited September 30, 2008 by sinstr