G-sensor

[Terminal]

While getting my transfer case replaced, my mechanic told me my g-sensor for the ATTESA is stuffed, and costs upwards of $2500. Apparently I shouldn't rely on it to engage the front wheels any time soon.

Has anyone had to deal with replacing this unit? I had to relocate it for the manual conversion, if anyone who's done this conversion has had the same thing happen let me know.

Cheers

[ssshonky]

excuse my ignorance but I was under the impression that the front wheels were driven all the time? Split front to rear is 40/60 from what I can remember. Is there anyway of double checking his diagnosis?

$2500 for a sensor is crazy !

Maybe you can bypass the sensor and just run the front wheels all the time?

While getting my transfer case replaced, my mechanic told me my g-sensor for the ATTESA is stuffed, and costs upwards of $2500. Apparently I shouldn't rely on it to engage the front wheels any time soon.

Has anyone had to deal with replacing this unit? I had to relocate it for the manual conversion, if anyone who's done this conversion has had the same thing happen let me know.

Cheers

[Stinky Rooster]

erm, no you can't. AFAIK, the split varies all the way down tp 5/95

Also the atessa fluid, as well as providing hydraulic pressure, also cools and lubricates the whole system so if the pump is not recieving the correct instructions then you are risking the transfer case internals.

I have an operating g-sensor available Leshy, but how would we go transporting it?

[yokotas13]

While getting my transfer case replaced, my mechanic told me my g-sensor for the ATTESA is stuffed, and costs upwards of $2500. Apparently I shouldn't rely on it to engage the front wheels any time soon.

Has anyone had to deal with replacing this unit? I had to relocate it for the manual conversion, if anyone who's done this conversion has had the same thing happen let me know.

Cheers

heh, i threw mine away

maybe thats why the 4wd light is on....and im missing a front driveshaft lol

[66yostagea]

from what Dale said, is it because the sensor was stuffed, the Atessa did not supply the oil and that stuffed the T/C internals?

[ssshonky]

cause and effect .. good sleuthing there!

from what Dale said, is it because the sensor was stuffed, the Atessa did not supply the oil and that stuffed the T/C internals?

Dale : how big physically is the sensor? are they particularly fragile or something?

I found a good freight company called AUSTRALIAN NATIONAL COURIERS

Unit 14/ 45 Tomlinson Rd Welshpool 6106 Phone :13 2088

they might be able to do a good deal on transporting that sensor.

[Terminal]

Nah, the transfer case was making bad noises well before I got hold of it. The part that failed was the chain that runs the front driveshaft. It was probably flogged before I got to it.

The way the mech explained it is that a faulty G-sensor prevents the front wheels engaging when the rears slip, it doesn't run the ATESSA 100% and burn out the T/C.

Stinky, how much do you want for it? If you wrap it in enough bubble wrap and secure it in a decent box it shouldn't get damaged. I don't know why mine is but there's a little sensor on the side that turns red when it's damaged. sort of like a geiger counter

[ssshonky]

so its like those G-force sensitive stickers you can put on packages that goes red if it experiences over a certain amount of Gforce? thats pretty cool !

Nah, the transfer case was making bad noises well before I got hold of it. The part that failed was the chain that runs the front driveshaft. It was probably flogged before I got to it.

The way the mech explained it is that a faulty G-sensor prevents the front wheels engaging when the rears slip, it doesn't run the ATESSA 100% and burn out the T/C.

Stinky, how much do you want for it? If you wrap it in enough bubble wrap and secure it in a decent box it shouldn't get damaged. I don't know why mine is but there's a little sensor on the side that turns red when it's damaged. sort of like a geiger counter

[Stinky Rooster]

Nah, the transfer case was making bad noises well before I got hold of it. The part that failed was the chain that runs the front driveshaft. It was probably flogged before I got to it.

The way the mech explained it is that a faulty G-sensor prevents the front wheels engaging when the rears slip, it doesn't run the ATESSA 100% and burn out the T/C.

Stinky, how much do you want for it? If you wrap it in enough bubble wrap and secure it in a decent box it shouldn't get damaged. I don't know why mine is but there's a little sensor on the side that turns red when it's damaged. sort of like a geiger counter

Thats what I was worried about.

I have a good mate in the freight industry, I will have a chat to him about getting it freighted, and if I can get it insured and I will get back to you dude.

[Terminal]

Thanks mate, appreciate it.

[66yostagea]

What does it look like???? Where does it fit? How can you tell if its stuffed. How do you test it? It could be a big $ maintenance worry.

Pics, please Dale. If possible. Any info on this part would be greatly appreciated by a lot of us.

[Stinky Rooster]

its the big box under the centre console with exactly 1 crapload of wires coming out of it.

I haven't pulled it out yet, but when I do I will post pics.

[stasis]

soz for hijacking this thread. I think i have a smilar problem. Whats that thing rigt underneath at the start of the rear tailshaft? Right after the transmission manual It looks like a wiper motor being wrapped up. And its got a tube running to the rear of the car. Its got a big patch of oil on it. Its not dripping but you can tell when the car its up in the hoist. Is it the ATTESSA?

Its not dripping oil or anything but its just damp. :emme know.

[unique1]

the attessa fluid bottle in the boot has nothing what so ever to do with the oil in the transfer case its totally seperate. The attessa fluid bottle is for the hydraulic actuator pump that is on the rear of the box (as STASIS is talking about above), it just pressures the actuator when the attessa ecu says so. The transfer case has its own oil, its the same type of oil as the attessa bottle but the attessa bottle in no way shows how full the transfer case is.

running no 4wd while the tf case has oil in it will not cause an issue at all as long as the actuator has the air bleed off to release the pressure onto the clutch packs.

Edited October 4, 2007 by unique1

[Duncan]

Leshy it is pretty unusual for the sensor to be stuffed, it is normally wiring, low voltage or a heap of other issues. was the 4wd light on?

the stagea sensor will match to something else for sure, probably 33 gtr but they may all be the same....maybe get someone to check in the part numbers thread.

just get something sceond hand from a wreck.

i moved mine for the manual conversion too and it is working fine

[Terminal]

My 4WD light isn't on, my mech just noticed the g-force sticker on the side was red, meaning it had sustained a large impact or something and it probably wouldn't work all the time.

I haven't noticed any problems with it, I was just trying to work out if it was a common problem and why it would cost up to $2500 for a new one. I think my transfer case killing itself and this g-sensor are separate, yet coincidental issues.

[GoldZilla]

What does it look like???? Where does it fit? How can you tell if its stuffed. How do you test it? It could be a big $ maintenance worry.

Pics, please Dale. If possible. Any info on this part would be greatly appreciated by a lot of us.

Like Duncan and Leshy have pointed out, the manual conversion requires it to be moved. This is where it is in mine, dunno about the Duncan's, Leshy's or anyone else's.

[GoldZilla]

Oh, by the way, last I heard JustJap had a Stagea front cut. It might be an idea to see if they've still got enough of the car there that the sensor is still in it.

[Terminal]

I had to turn mine 90 degrees to get it to fit, do you think that could be a reason it's not functioning? Maybe I should try and move it around to face the direction it did originally.

[Stinky Rooster]

if it uses internal mercury switches, then yes it will explain why its not working, but not why it has tripped the g-force indicator.