Traction Control

[ososlo]

We have 07 D3 TDV6 SE ...as some of you know we shipped it over to oz for the winter and which is where I first noticed a peculiarity of the TC..

We were travelling over to the Atherton Tablelands inland from Cairns on a narrow and windy but sealed road.

At times the slight bumps in the road would set off the TC and the car would lose power and judder, I guess from the TC system working.

It is still doing the same thing over here, when we were coming back from trout fishing the other day...A narrow windy road where the speed was , I guess, 40 - 60 km p/h...but sealed.

Does this happen on all of them?...it is almost as though the TC has too finer tolerance b4 kicking in.

Cheers
Graeme
Gisborne NZ

[101RRS]

Are you sure it is TC and not the Stability Control as they use the same indicator??

Have you been driving too fast for the conditions and hooning around :D??

[Tombie]

How many KMs on the vehicle?

[ososlo]

Hi ya..

We have 45K on the clock...We had a service at 40K at Cairns and there were no faults recorded.

And no I wasn't hooning!! Ha

I suppose it could have been the Stability control...didn't really take much notice...I guess I'll turn it off next time and see.

Graeme

[101RRS]

I have never had traction or DSC activate on bitumen but heaps of times when off road - other than the shudder you will not really feel the TC in most circumstances but in my limited experience when DSC kicks in and you are doing any sort of speed you notice it straight away as the car will move strongly from one side or the other.

Sure you were not hooning around??

Garry

[ososlo]

Nah I don't think it was excessive speed as from memory we were in a queue of cars at one stage going over the hills behind Cairns...If you know the road it's not really conducive to hooning.

I never noticed it at any other time than on the seal..

For all the other times , whether on bitumen or corrugated tracks or sand it performed faultlessly...it seems to be just when on windy roads.

I can't remember if it has ever happening on flat windy roads...it may be related to also being on hills..

[ososlo]

In fact I have never noticed it when we have been doing 100 kph..

Again it shows itself at slower speeds

Graeme

[gghaggis]

Most likely the DSC cutting in. Uneven tyre pressure or uneven loading can cause it to become more active. So too can wear in the ARB's, lower control arm bushes, steering out of calibration etc.

Cheers,

Gordon

[jonesfam]

I would get it checked out.
I drive those roads around the Tablelands often, with a trailer, with a roof pod & going as fast as I can get away with or a combination of all 3.
Never had the DSC activate while doing so.
Seems strange.
Jonesfam

[ososlo]

Thanks guys,

Obviously its not normal...I'll get it checked out next time I am near an agent..

We are 3 hours from a landy garage...

Graeme

[camel_landy]

That's classic symptoms of DSC kicking in... ;)

M

[WazzaACT]

This happened to me a few times in my 07 just before the transmission let go. Well worth having it checked out.

[rmp]

Agree with the others it is stability control (DSC in LR-speak). That's related to but not the same as traction control. Did you at any time feel the car was bouncing out of line, even just a tiny bit? Was the power loss slight, or a big drop?

[SuperMono]

I vote it is DSC activation, doesn't take much to get it to 'shudder' on mild turns. Small bumps, a bit of crud on the road, a little too much wheel or pedal.

Very noticable if you have a deflating or low pressure tyre as well.

[ososlo]

I would call the power drop as light but noticeable but no real pulling to the side..

My impression on it is that it is almost as if the tolerances set in the computer are too fine and the DSC cuts in at the slightest excuse..

Don't know if that is a real or imagined cause and effect though!

The tyres are all GG AT2's with 15K use...all are running at the same pressures...I have a tyre pressure monitor on the dash.

The roof tent is still on the top and is very slightly to one side but I wouldn't have thought that would be a factor.

As an aside, when I went into the garage this morning the truck had settled unevenly on it's airbags

Thanks
Graeme

[gghaggis]

I would call the power drop as light but noticeable but no real pulling to the side..

My impression on it is that it is almost as if the tolerances set in the computer are too fine and the DSC cuts in at the slightest excuse..

Don't know if that is a real or imagined cause and effect though!

The tyres are all GG AT2's with 15K use...all are running at the same pressures...I have a tyre pressure monitor on the dash.

The roof tent is still on the top and is very slightly to one side but I wouldn't have thought that would be a factor.

As an aside, when I went into the garage this morning the truck had settled unevenly on it's airbags

Thanks
Graeme

If the car is not actually sliding sideways at the time, you won't feel the dsc 'pull' the car sideways. It will still make a noise and cut a little of the power, which sounds like what's happening. If your car is leaning to one side, the dsc will cut in more often when cornering into the lean.

Try and confirm that it is the dsc - watch for the icon on the dash and note what the car dynamic is at the time. Take a bend at speed and see if one direction triggers it more than the other.

Cheers,

Gordon

[ososlo]

Thanks Gordon,

I will have a test run in the next couple of days as my mate wants to go fishing again and there are some nice windy roads up there.

I must admit the light came on, but which one it was I didn't recognise.

Regards
Graeme

[discojools]

Graeme,
Same thing happened to me after I had a wheel alignment. When the mechanic asked me what tyre pressure I normally run I told him I run manufacturers recommended. He was adament that I should run higher pressures as the manufacturers only set their pressures to give a good ride. I reluctantly agreed to give it a try. After the wheel alignment I drove home and noticed the DSC warning coming on going thru roundabouts a sign that the car had lost grip. Further into the trip home it started to rain and I nearly lost control of the car coming out of a roundabout also a first time for me. Never had this before The car felt like I was driving on "tiptoes"and the ride was ****! When got home I quickly reduced the pressure the 33psi front and 36 rear ( recommended) and haven't seen DSC warning since. I suggest if you are not already running at the recommended pressures try it.

[ososlo]

Yeah my pressures are a bit higher than that so I'll drop them tomorrow..

Thanks for that!