Hicas / Driveline Issues

[snow2]

I own a R32 GTR. It has had some driveline issues for sometime.

I used to be that when I would turn the corner the car would shudder. I had the Diff replaced and leak in the HICAS sealed and that issue disappeared.

But I gained 2 new issues:

1. Only ccasionally when I start moving the Torque Split indicator goes from 0% to about 30% and then the car start to shake until I take my foot off the gas and then everything goes to normal. Only happens about 1 in 20 starts (I am talking just a normal-fast takeoff from traffic lights...nothing to speedy...nothing that would cause wheel spin).

2. Sometime after I switch off my car (totally off not turbo timer or anything). I get a strange "metal grinding noise" that comes from the rear diff/hicas area of the car. Last about 10 secs and then stops. Quite loud and doesn't sound too healthy.

I guess I am asking if anyone can shed any light on these issues.

Also the HICAS light has been on since about 3 weeks after I got the car. They were supposed to fix it at the last place I took it to to get the leak fixed. But they said it needs to be "alligned". Would that make sense?

And if anyone has any suggestion on who would be good to take it to to fix this in Adelaide...that would be greatly appreciated as well.

Thanks in advance.

[Topaz]

1. Only ccasionally when I start moving the Torque Split indicator goes from 0% to about 30% and then the car start to shake until I take my foot off the gas and then everything goes to normal.

2. Sometime after I switch off my car (totally off not turbo timer or anything). I get a strange "metal grinding noise" that comes from the rear diff/hicas area of the car. Last about 10 secs and then stops. Quite loud and doesn't sound too healthy.

1. sounds very much like a problem with the front diff. maybe a chewed gear?!. I get 'spikes' in front torque when I go over slight bumps or pot holes and my gauge can reach about 40% and I think I remember it staying there until I released the accelerator....possibly!

2. I get a similar noise, but thats the fuel pump starting up in mine I think. You might have a loose line or something. Any fuel leaks under the back of the car? check the fuel lines under the car as well.

3. HICAS problems in a 32? check power steering fluid level, after that blame the guys who last mucked with it, presumably the place that installed your rear diff.