GTR R32 4WD problem

[XterC]

Hi guys.... just wondering if any of you guys have had any problems with the 4WD system???

When ever I start my car the 4WD light will show up on the dash. The problem is that when I switch off my engine, I can hear this buzzing sound at the rear driver side quarter panel. Its not the fuel pump sound... sounds is related to the 4WD system. It will keep buzzing until it drains the battery totally flat.

I've checked the fuse for the 4WD - all ok. If I pull it out the car will just stall.

I am thinking this maybe an electrical problem.... any advice, any recommendation???

Or any fix to it, before i take it to an auto electrician or mechanic...

Help!

[Doctor]

It shouldnt drain you battery out. I think your battery is stuffed. Get it checked and make sure your alternator is ok while your at it.

Doc

[Pva_Glue]

have you try to run diagnostic?

tell me when you turn the key on is there 4WD light Flashs? if so how many times?

cheers

Joe

[XterC]

Hi guys....

The problem is not with the battery, as I have replaced with a brand new one. Also replaced the alternator as well.

When I start my engine, the 4WD will come on, you will hear a buzzing noise from the rear of the car.... right above the diff.

It appears to be a controller module for the 4WD system.

I have taken out the fuse for the 4WD totally iliminating the 4WD driving system. Since then my battery hasn't gone flat, but I am left with just 2WD mode.....

Have any of you guys have this sorta problem before??? I am thinking it could be something small... something electrical... stuffed regulator or something....

Any recommendation of who should I bring it to????

HELP!!!!!

[blind_elk]

The buzzing noise at startup is the 4WD pump priming the 4WD system. If the pump keeps working, presumably the pressure sensor is kaput, because it is not getting the "alright, alright, enough pressure then" signal.

[XterC]

Originally posted by blind_elk

The buzzing noise at startup is the 4WD pump priming the 4WD system. If the pump keeps working, presumably the pressure sensor is kaput, because it is not getting the "alright, alright, enough pressure then" signal.

Thanks for the info... I think you are definately right though... thats what it sounds like.

Is this pressure sensor unit on located on top of the rear diff?

Any idea on where I can get this fix in the sydney area? And the likely cost of the unit.....