I've had enough!

[Chillitt]

Is that on the plate in the engine bay???

Yus mate. could be g245 or something like that

[MudSurfer]

Whats your diff code? If you want to pull any bits of my breaker, come and help your self... I do you very good price.....

Is that on the plate in the engine bay???

[sledge]

so engine running (making a vacumn) realy eventually goes off

engine off (not making a vacumn) relay stays on but no 4wd.

all vacumn lines are in the right place/right way round.

a soon as the switching gear(which is all working) detects a change in pressure(drop in vacumn) the pricess starts.

the relay in question is getting the correct signal because of all the above


something past the relay between the diff (which is ok) and the relay is acting up

am deffo edging towards the transfer box

that would be my guess too, as if it took a knock would of made it engage, once it had recovered from the knock came back out of 4wd.

try smacking it with a really big hammer and see if it does the same

[gwh200]

so engine running (making a vacumn) realy eventually goes off

engine off (not making a vacumn) relay stays on but no 4wd.

all vacumn lines are in the right place/right way round.

a soon as the switching gear(which is all working) detects a change in pressure(drop in vacumn) the pricess starts.

the relay in question is getting the correct signal because of all the above


something past the relay between the diff (which is ok) and the relay is acting up

am deffo edging towards the transfer box

[MudSurfer]

he hasn't come back......hope he is not jumping in the bath holding his hairdrier...it is sounding as if the transfer box took a thump.
as i remember the 4wd kept going on and off, till it just stopped working all together

Wheels have been up, I replaced the discs and pads a couple of weeks ago and checked the wheels/axle etc (oh, and fitted manual hubs too)...

All I would (and still do) get is the relay clicks on, then off, then repeats this, a few times, but always ends up off - when the engine is running - when the engine is off, it clicks on, stays on, but no light on the dash

[Chillitt]

Whats your diff code? If you want to pull any bits of my breaker, come and help your self... I do you very good price.....

[gwh200]

he hasn't come back......hope he is not jumping in the bath holding his hairdrier...it is sounding as if the transfer box took a thump.
as i remember the 4wd kept going on and off, till it just stopped working all together

[sledge]

think he's done all that, as it was suggested in the last thread about it lol

[gwh200]

have you jacked up front and back and checked ...say hi to nina btw

[MudSurfer]

and we are absolutely positive, it isnt in 4wd, even with the light off ??

its starting to sound like a transfer box thingy

totally - you know Bryn Crug - well, I've now done that twice, in 2WD (well, Nina did half of it last time) and it's absolutely not in 4WD....not with that much slipping about in the rear....

[gwh200]

and we are absolutely positive, it isnt in 4wd, even with the light off ??

its starting to sound like a transfer box thingy

[MudSurfer]

you know you said, it worked when it took a real hard knock, where abouts did it knock????? front diff, transfer box ect

Dunno - I was inside at the time

It may have been the front diff, which made me think it was sticking, so pulled it all apart and it's fine...

[sledge]

you know you said, it worked when it took a real hard knock, where abouts did it knock????? front diff, transfer box ect

[MudSurfer]

Is the vac pump itself working okay?

It comes from the brake servo on the 3.0 - so I'm assuming it is, as the brakes work, but no idea if I'm being naiive - all I get is the relay clicks on, then off, then repeat this till bored, but it always ends up off....with the engine on - engine off, then just clicks on - stays on, but no light on the dash

[MattF]

Is the vac pump itself working okay?