4WD light on GTR

[REDGTT]

Intermittently it stays on. What does that mean?

[blind_elk]

It means intermittently there's a problem with the 4WD system.

In the boot, in the RH corner, behind the lining, there's a fluid reservoir. Check the fluid level is between the marks (check with engine running). Takes auto-trans fluid.

Otherwise, there's a faulty earth contact (maybe, have fun finding that one!). But I would lay money on the fluid reservoir.

[Guest ylwgtr]

so it goes off???then comes back on???Or does it stay on???

[Silver-Arrowz]

Originally posted by blind_elk

It means intermittently there's a problem with the 4WD system.

In the boot, in the RH corner, behind the lining, there's a fluid reservoir. Check the fluid level is between the marks (check with engine running). Takes auto-trans fluid.

Otherwise, there's a faulty earth contact (maybe, have fun finding that one!). But I would lay money on the fluid reservoir.

I think its somewhere different on R33. Can someone confirm this.

[rh9gtr]

My car also does the same but it happens if the car is idling for more than 2 mins.. You can actually hear the 4WD drive pumps running and as the light turns on the pump turns of at the same time... while in traffic i turn the car off and then back on and it back in 4WD drive mode...If i take of while the light is on then its in RWD....

This is quite annoying especially as i drive it everyday in Sydney peak hour...So if there is a fix it would be great...And yes i have check the fluid already..

Nick

[YO880]

fluid reservour for 4wd is on rh side of boot behind lining on R33

[Pva_Glue]

Never had problem with 4WD system... unless I turm egnition off while car is going foward then the 4WD light stays on...

also check the fluid in the boot they are actually sits higher then Max... is that bad?

cheers

Joe

[Guest ylwgtr]

I dont think the reservoir being full or near empty is that important...if its bone dry maybe but as long as there is oil in there.....and someone correct me if i am wrong but i think it doesnt have anything to do with the split drive system...I had an R33 GTR before and have replaced the clutch in it myself and it looks as tho that oil is the feeder for the gearbox oil...i was under the assumption that the gear box works on the Drysump principal....i may be wrong but thats what i can gather and it looks like the split is further towards the front of the gearbox on via a clutch pack in the transfer case ....i would be checking for computer related problems ...run an on board self diagnosis test and see if you can extract and codes from the ecu.

[REDGTT]

Thanks guys. Its intermittent but when it comes on it stays on until I turn the car off and then back on.

I will check the fluid. Thanks again.

[REDGTT]

Originally posted by blind_elk

It means intermittently there's a problem with the 4WD system.

In the boot, in the RH corner, behind the lining, there's a fluid reservoir. Check the fluid level is between the marks (check with engine running). Takes auto-trans fluid.

Otherwise, there's a faulty earth contact (maybe, have fun finding that one!). But I would lay money on the fluid reservoir.

O k I just went to check it out. The the empty max mark is halfway on the bottle which the fluid should be in between right?

The bottle on my car is "totally" full!

Can this make the light come on?

[Guest ylwgtr]

no

[nis14]

Does your abs light flicker before the 4WD light comes on?

The bottom part of the reservoir is the return. If the air gap between the fluid in the bottom and the top part is the big you may need to bleed the 4WD system. There is a max gap something like 5 or 10 mm.

Another common problem is earthing.

You can get an error code out of the 4WD computer. I forget how to do that, I can look it up in the manual on the weekend.

[rh9gtr]

Yeah that would be great, so i can finally fix this problem..

Nick

[REDGTT]

Originally posted by nis14

Does your abs light flicker before the 4WD light comes on?

The bottom part of the reservoir is the return. If the air gap between the fluid in the bottom and the top part is the big you may need to bleed the 4WD system. There is a max gap something like 5 or 10 mm.

Another common problem is earthing.

You can get an error code out of the 4WD computer. I forget how to do that, I can look it up in the manual on the weekend.

Thanks much appreciated. I will will drain my fluid to the correct level first and then bleed if I have too. I will wait for the error code posting

Thankyou once again.

Hey RH9GTR I know how you feel LOL

Its annoying!

[nis14]

There is a procedure to bleed the 4wd system. From memory on a 32gtr it goes something like,

1. fill the reservoir to about 3 cm over the max.

2. remove the air from the bleed valve on the unit above the rear diff.

3. turn the ignition on

4. disconnect the bleed connector which is behind the kick panel near the accellerator pedal. It should be a white or yellow wire with an inline connector that you need to disconnect. You should hear the pump start for a couple of seconds.

5. there is a bleed valve on the back of the gearbox/transfer case, you need to unscrew it nearly all the way, then open and close it quickly for 1 sec at a time. You should hear the pump pulse then close then value. Do this until all the air has gone.

6. there is pipe (the return) on the side of the reservoir on the tail light side (the reservoir is on the right hand side in a r32). Open this to drain the excess fluid by connecting and disconnecting the bleed connector near the accellerator pedal. The pump should turn on when you connect the bleed connector if not turn the ignition off and off then try again.

7. connect the bleed connecter and turn off the ignition.

Sorry for the confusing explaination, it is easier with pictures although the engrish in the manuals is probably worse.

Unfortunately this didn't help my friend, his problem is abs or electrical related.

[REDGTT]

Strange. I have looked on SDU for articles relating to 4wd light and there isnt many.

[REDGTT]

Ok I have drained the fluid to correct level.

Checked the connectors on the side in the boot and check fuses and connections. Most likely the problem lies underneath?

[OZ GTR35]

DR,

I have the same problem, except my ALSD light comes on as well. If the fluid is over 12 months old replace it. Mine is just getting to 12 months now and I have noticed that the lights are starting to come on more frequent. Bleed the system almost completely making sure you keep re-filling the 4WD Bottle.

I have also noticed that removing the connection from the computer under the back shelf and using some connector cleaner on the plugs also stops bad joints which also can bring the light on. If this does not fix it, then sell it and buy another one. I have a friend who spent $20k and 10 months and he could not find anyone in Sydney who could fix it. His come on continuously so it was a slightly different story.

[REDGTT]

Thanks OZ.. thats pretty scary.

So old fluid can definately cause a problem?

I wil bleed it this weekend then.

Is it easy to bleed? Any mechanic will know how to do it?