R32 Gtr Rear Attesa Leak

[R31_GTSX]

Hi all, I have a fairly substantial leak coming from the rear attesa system.. I have stuck my head under there and there appears To be the attesa unit above the diff and there is a lot of fluid on a wiring plug coming out of the unit. Has anyone got any pics of the unit out of the car and if it is possible fluid is coming from a switch?

Any help would be great!!

Thanks

[endless]

Did you have any luck with this?

If the wiring plug you are talking about is visible from the passenger side looking in from the rear then mine is leaking from the exact same spot.

[mico]

its not the bleed nipple loose is it ?

[endless]

Got a picture of where that is.. I thought it was on the bottom of the reservoir?

That is the part that can be seen from the rear pass side and looks wet with fluid.

[R31_GTSX]

Thanks endless, mine looks like it's leaking from the other side, looking from the drivers side just in front of the diff. Thanks for the pic.. It gives me a much better idea of what I'm looking at. Did you take this off the car without taking the diff out? Or did you need to remove the diff?

I'm not sure I can fix the leak with it still on the car.. I'm dreading having to take it out though.

[endless]

That's not my picture, just a borrowed one!

You have to remove the diff to get to it. I will check mine on drivers side to see if it is wet there, mine is a pretty decent leak too as it drained the reservoir last time enough for the 4WD light to come on after a short time (only just got the system working due to other issues)

Unfortunately for me, i have JUST replaced all the diff mounts so i had access to it but didn't know it was leaking!

Edited May 16, 2011 by endless

[R31_GTSX]

Mine is the same, I fill the reservoir and within a couple if days it's almost empty... Leaving behind a trail of everywhere I've been over the two days. The light is on and I haven't refilled it, of late because it empties too quick. Is it possible the unit would have Shat itself with no fluid? I'm thinking when I get it off I should probably just replace it with a known working unit. Problem is getting the car off the road as I have no spare..

[endless]

Pull your 4WD fuse for now as this will stop it from leaking out any more fluid. I'd think the unit would be working as long as you didn't run it bone dry. I'd bleed it once leak fixed though.

Just checked drivers side on mine... looks dry. Mines definitely the other side.

[endless]

Ahh, after some more searching think i have found my problem;

http://www.skylinesaustralia.com/forums/topic/328036-r32-hicas-pump-pressure-switch-replacement/

I found the bleed mico was talking about, here is a useful bleeding guide showing location.

http://www.skylife4ever.com/2011/01/bleeding-attesa.html

[R31_GTSX]

Great work mate, i look forawrd to getting the sucker off and having a look at it. If the fluid is traveling along the wiring then that could be my problem too. I reckon before I take it off I'll fill the reservoir, jack it up and then remove the white clip under the dash to actuate the pump.. Then just hope I can see the leak and be able to get to it with it still in the car. I hope the pump is still working!

[mico]

ah thats good u found it mate, what made the cap snap off the sender unit ??