Jump to content
SAU Community

Recommended Posts

So what makes you think the 4wd is not working then ??

The R32 will slide the back out when doing ..err... spirited driving .

If you are expecting it to handle like a WRX , ie. fairly neutral then you will be mistaken.

It will also spin the rear tyre a bit then the gauge should shoot up as the front engages on a savage launch.

If it is very slow to rise or only rises a bit , it may need bleeding or at worst the clutch packs may be gone in the transfer case.

Cheers

Ken

Link to comment
https://www.sau.com.au/forums/topic/112528-4wd-not-working/#findComment-2075147
Share on other sites

Jay, As Ken points out the GTR isn't a constant 4WD system, it's active, and transfers torque to the front wheel when the rear starts slipping. If in doubt take it to one of the import workshops and I'm sure they'll tell you if it's working ;)

ATTESSA is a reactive system, so it is only ever going to try & catch up with what you are doing.

It can be air in the system, but it also (Don't want to alarm you) can be due to wear in the ATTESSA clutch plates. When these gets tired the system still apportions torque (or tries to) by using the same clamping pressure as before, but it no longer works properly because the wet clutches slip more than they are supposed to.

Best bet is to get the system bled, then check it by a back to back test with a known good unit.

Link to comment
https://www.sau.com.au/forums/topic/112528-4wd-not-working/#findComment-2075658
Share on other sites

Thanks for the replys. I know that the gtr 4wd isn,t constent like a wrx but when i try to do a launch at 5000 rpm it just spins the back tires, also when the car gets full boost in second gear at 5000 rpm it spins the tires all the way to 7000rpm. I've noticed as i have been driving when it usally spins in second gear at 5000rpm it got full traction 4 times. So do you guy's think it the ATTESSA clutch plates?

Link to comment
https://www.sau.com.au/forums/topic/112528-4wd-not-working/#findComment-2076211
Share on other sites

It could be the clutch plates, or the system may need bleeding. Best to take it to a good workshop to get the system bled, if that doesn't work then you may need new clutch plates, but that won't be cheap.

How much do u think it may cost??

Link to comment
https://www.sau.com.au/forums/topic/112528-4wd-not-working/#findComment-2076476
Share on other sites

this thread reminds me that my 4wd aint worked since i had my gtr imported lol my warning lights are on all the time and nothing reads on the front torque guage and yes i have checked the fuses and they are ok

Link to comment
https://www.sau.com.au/forums/topic/112528-4wd-not-working/#findComment-2076486
Share on other sites

The two issues (Gazza's & gaygtr's) are diferent.

Gazza - yours sounds for all the world like an electronic problems - in which case the ATTESSA module under the parcel shelf should be blinking away trying to tell you what is wrong.

JayGT-R's is, like has been said, either a bleed issue in the attessa or worn clutch packs. Take it to someone who knows the systems & just as importantly knows what to expect from the ATTESSA system in terms of performance.

Link to comment
https://www.sau.com.au/forums/topic/112528-4wd-not-working/#findComment-2077946
Share on other sites

The two issues (Gazza's & gaygtr's) are diferent.

Gazza - yours sounds for all the world like an electronic problems - in which case the ATTESSA module under the parcel shelf should be blinking away trying to tell you what is wrong.

yeah it is flashing i will get around to getting it seen to eventually

Link to comment
https://www.sau.com.au/forums/topic/112528-4wd-not-working/#findComment-2079370
Share on other sites

Yes how did u know?

The guy says he wasn,t aware of the problem.

get some pics up!!! this thing sounded like it had some gear on it. have you found out what turbos are down there?

i spoke to the owner for around half an hour on the phone cause i was going to drive down there to see it. i asked him about the faults on the car (to save me driving 3 hours and being pissed off) and the first thing he said that it was only running the rear wheels. he even said that he had got quotes from a workshop in bunbury to fix. wasnt aware? pfff no way!

seemed to be going for a good price too :)

Link to comment
https://www.sau.com.au/forums/topic/112528-4wd-not-working/#findComment-2082296
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I had 3 counts over the last couple of weeks once where i got stranded at a jdm paint yard booking in some work. 2nd time was moving the car into the drive way for the inspection and the 3rd was during the inspection for the co2 leak test. Fix: 1st, car off for a hour and half disconnected battery 10mins 4th try car started 2nd, 5th try started 3rd, countless time starting disconnected battery dude was under the hood listening to the starting sequence fuel pump ect.   
    • This. As for your options - I suggest remote mounting the Nissan sensor further away on a length of steel tube. That tube to have a loop in it to handle vibration, etc etc. You will need to either put a tee and a bleed fitting near the sensor, or crack the fitting at the sensor to bleed it full of oil when you first set it up, otherwise you won't get the line filled. But this is a small problem. Just needs enough access to get it done.
    • The time is always correct. Only the date is wrong. It currently thinks it is January 19. Tomorrow it will say it is January 20. The date and time are ( should be ! ) retrieved from the GPS navigation system.
    • Buy yourself a set of easy outs. See if they will get a good bite in and unthread it.   Very very lucky the whole sender didn't let go while on the track and cost you a motor!
    • Well GTSBoy, prepare yourself further. I did a track day with 1/2 a day prep on Friday, inpromptu. The good news is that I got home, and didn't drive the car into a wall. Everything seemed mostly okay. The car was even a little faster than it was last time. I also got to get some good datalog data too. I also noticed a tiny bit of knock which was (luckily?) recorded. All I know is the knock sensors got recalibrated.... and are notorious for false knock. So I don't know if they are too sensitive, not sensitive enough... or some other third option. But I reduced timing anyway. It wasn't every pull through the session either. Think along the lines of -1 degree of timing for say, three instances while at the top of 4th in a 20 minute all-hot-lap session. Unfortunately at the end of session 2... I noticed a little oil. I borrowed some jack stands and a jack and took a look under there, but as is often the case, messing around with it kinda half cleaned it up, it was not conclusive where it was coming from. I decided to give it another go and see how it was. The amount of oil was maybe one/two small drops. I did another 20 minute session and car went well, and I was just starting to get into it and not be terrified of driving on track. I pulled over and checked in the pits and saw this: This is where I called it, packed up and went home as I live ~20 min from the track with a VERY VERY CLOSE EYE on Oil Pressure on the way home. The volume wasn't much but you never know. I checked it today when I had my own space/tools/time to find out what was going on, wanted to clean it up, run the car and see if any of the fittings from around the oil filter were causing it. I have like.. 5 fittings there, so I suspected one was (hopefully?) the culprit. It became immediately apparent as soon as I looked around more closely. 795d266d-a034-4b8c-89c9-d83860f5d00a.mp4       This is the R34 GTT oil sender connected via an adapter to an oil cooler block I have installed which runs AN lines to my cooler (and back). There's also an oil temp sensor on top.  Just after that video, I attempted to unthread the sensor to see if it's loose/worn and it disintegrated in my hand. So yes. I am glad I noticed that oil because it would appear that complete and utter catastrophic engine failure was about 1 second of engine runtime away. I did try to drill the fitting out, and only succeeded in drilling the middle hole much larger and now there's a... smooth hole in there with what looks like a damn sleeve still incredibly tight in there. Not really sure how to proceed from here. My options: 1) Find someone who can remove the stuck fitting, and use a steel adapter so it won't fatigue? (Female BSPT for the R34 sender to 1/8NPT male - HARD to find). IF it isn't possible to remove - Buy a new block ($320) and have someone tap a new 1/8NPT in the top of it ($????) and hope the steel adapter works better. 2) Buy a new block and give up on the OEM pressure sender for the dash entirely, and use the supplied 1/8 NPT for the oil temp sender. Having the oil pressure read 0 in the dash with the warning lamp will give me a lot of anxiety driving around. I do have the actual GM sensor/sender working, but it needs OBD2 as a gauge. If I'm datalogging I don't actually have a readout of what the gauge is currently displaying. 3) Other? Find a new location for the OEM sender? Though I don't know of anywhere that will work. I also don't know if a steel adapter is actually functionally smart here. It's clearly leveraged itself through vibration of the motor and snapped in half. This doesn't seem like a setup a smart person would replicate given the weight of the OEM sender. Still pretty happy being lucky for once and seeing this at the absolute last moment before bye bye motor in a big way, even if an adapter is apparently 6 weeks+ delivery and I have no way to free the current stuck/potentially destroyed threads in the current oil block.
×
×
  • Create New...