M35 Atessa Pump Replacement

[BezerkR32]

hi guys, just replaced the atessa pump and was wondering what fluid is recommended. i know you can run atf style fluids but wanted to know what nissan specifies

as it is $5000 worth of pump.

[Sunkist]

hi guys, just replaced the atessa pump and was wondering what fluid is recommended. i know you can run atf style fluids but wanted to know what nissan specifies

as it is $5000 worth of pump.

Nulon ATF(fully synth reccomended)

Nissan Matic J(semi synth - will work fine but above is better)

[iamhe77]

Yep, what Aaron said

[zei20l]

ouch, are they THAT expensive??

ill be keeping a hold of my spare thats for sure!

[BezerkR32]

yeh $4995 genuine. car got tagged in the r/h/r corner and damaged it.

thanks guys.

ouch, are they THAT expensive??

ill be keeping a hold of my spare thats for sure!

[zei20l]

ouch, glad you had insurance and its all good again.

[BezerkR32]

some poor young bird hit the missus. luck she was insured lol.

ouch, glad you had insurance and its all good again.

[BezerkR32]

ok guys, having some issues bleeding the system. have gravity bled down to the bleeder at the pump, i then power the pump up and try to bleed at the box

but not getting any pressure there. Is there a better way to do this?

[scotty nm35]

You need to take it to Nissan and get them to switch the pump and Attessa on with the Consult 3 to bleed it properly. This should be able to be done manually by hooking up 12v directly to the pump and solenoid but no-one has had the courage to try yet. I have the wiring diags here but they are in Japanese...

[BezerkR32]

yeh that is how i do the gtrs and it works fine, must be something else that requires switching in this system.

where is the solenoid, i bet its shut.

[Jetwreck]

when you figure this one out don't forget to post......best be is to get your car on a hoist with someone running the consult to turn it on and off!

[KiwiRS4T]

ok guys, having some issues bleeding the system. have gravity bled down to the bleeder at the pump, i then power the pump up and try to bleed at the box

but not getting any pressure there. Is there a better way to do this?

When you say you power the pump up you mean you have the motor running? There is supposed to be a manual switch in fron to the driver's legs - will try to find the reference,

Here is one:

http://sites.google.com/site/tyndago/gt-rbleedingattesasystem

Can this be the same switch that people are using to run in 2wd?

[Duncan]

still not sure if m35 is the same as r32/r33/r34, but if it is, there is a second bleeder near the driveshaft/subframe as well as the gearbox.....try that one first you might have an airlock

[Jetwreck]

There are the two bleed nipples....and on the back of the GB near the driveshaft and the other next to or on the pump!

[Angus Smart]

Yew should be a pump somewhere around the drivers side on the rear subframe. and on the back of the box.

that plug near the consult plug you short it out to ground?? the pump runs, (confirm with craig) do the pump bleed first, then move on to the rear of the box and do that bleed. then make sure the reservoir is up to the full line with no gap between..

or just pull the abs plug and f**k the 4wd all together

[BezerkR32]

i think you just disconnect the plug and the pump runs.....could be wrong. anyway it doesnt in my car atm.

i powered up the pump and solenoid manually and bled the system, now have to see why the pump isnt being activated.

anyone have a wiring diagram of the atessa system?

[Jetwreck]

i think you just disconnect the plug and the pump runs.....could be wrong. anyway it doesnt in my car atm.

i powered up the pump and solenoid manually and bled the system, now have to see why the pump isnt being activated.

anyone have a wiring diagram of the atessa system?

I bleed mine the other day.....all good

As far as wiring goes you might find what you want in here. http://www.m35stagea.info/forum/viewtopic.php?f=2&t=43

The Engine control and ECU pinouts are translated....they might give you a small heads up....Have you had it plugged into a Consult yet?

[jasevr4]

I bleed mine the other day.....all good

Craig, how did you go about running the pump? Bleed from the GB first and then the pump?

[slippylotion]

How often do you need to replace the fluid in the attessa system?

[KiwiRS4T]

Once in a lifetime? Its not under as much stress as an automatic gearbox - once per 100,000 should be heaps.