G'day all.

Yesterday the tdv8 transmission suddenly failed without warning while doing about 100 kmh on a main road (about 200km from home). There is no drive in forward or reverse, and all controls (TR & high/low switch) are unresponsive. A whirring sound is coming from the transmission area. I've only owned it for 6 months/10,ooo km, and up to this point the transmission has been smooth and vehicle has been trouble free.

It had its first transmission service at 130,ooo km, and next at 230,ooo km (about 10,ooo km ago). At the last service the outgoing tranny fluid did not show any signs of discolouration or fragments.

A couple of people so far have suggested either TC failure or TC calibration failure. I thought I would throw it open to opinions and possible fixes. I couldn't find anything on this forum to match what's happened to my RRV.

Im not shocked about something like this happening. My plan from the beginning was to put a bit of money aside each year for a catastrophic failure of some kind. However, it has happened earlier than I had planned for. Any advice would be appreciated. Its the Queen's birthday holiday today here, so will start contacting local businesses tomorrow.

thanks ______________________________
Vogue tdv8 08MY poverty pack - wow

Hi mate,

you've had 40 odd views and no replies.
i'll be honest that i've no idea, but peeps on here are looking so i'm sure you'll get some responses soon.

hope it gets sorted for you.
jake 2003 Range Rover Vogue 4.4 on Gas
1961 88" 2.25 diesel - George
Gone - 1997 3.9 V8i Discovery - Burt

Thanks Jake. Yes I noticed that too. If not will phone around tomorrow. I suspect it will be tranny out to get any clear idea of the problem. ______________________________
Vogue tdv8 08MY poverty pack - wow

Until you get someone knowledgable to look at it sir everyone here would just be guessing... As you rightly said it could be the transmission, could also be any of these too the front or rear diff, one of 4 driveshafts, transfer box broken...

Could even be as simple as the transfer box hi/low motor has somehow put the box into neutral... Doubtful but “anything is possible on a FF”

Sorry i can’t be more helpful sir

Last edited by Cam-Tech-Craig on 8th Jun 2015 9:35am. Edited 1 time in total

I suspect transfer box motor or calibration, range sensor or solenoid as the hi/lo LEDs are flashing.

The man that can help you is RRPhil, our resident gearbox god.

As for the ZF6HP26, it is also common in the Ford Falcons for example so you should get plenty support in Oz for them. However if it is not the gearbox but the transferbox or diff(s) then it is a different matter (no pun intended). Note that there is a post or two about this issue where people lost their drive like you and if I remember correctly, it was transferbox related.

The transferbox has caused issues in some FFRRs, so I suggest to have a look at that first. I might have slipped out of hi into neutral. I remember reading something about putting it back in hi manually after removing the e-motor on it.

Good luck and keep us posted please, it will help in fault finding in the future  MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Thanks all for the replies.

I know it's all guess work until someone looks at it. Nice to know the possibilities though. After trawling through the net and not finding similar symptoms on a failed 6hp26 I am starting to think it could be the bits that don't normally come with this box like the transfer box or front shaft. I know from experience that noise can travel but this noise is right at the front of the tranny.

Anyhow will see what this week reveals.

Thanks again. ______________________________
Vogue tdv8 08MY poverty pack - wow

Does the park lock hold the vehicle with the hand brake off or does it just roll freely?

Phil

The hand brake and park all work as normal. There's no unusual noise in park or neutral. ______________________________
Vogue tdv8 08MY poverty pack - wow

Would appear to be a transmission issue then, rather than something downstream. It’s just that we’ve had a couple of instances on here of 6HP26’s failing because the output shaft hadn’t apparently been coated with anti-seize grease at the factory and the spline into the transfer box had subsequently failed/worn away through fretting corrosion. Anyway, if your park lock holds then this would rule out this particular cause.

Click image to enlarge

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Thanks Phil. ______________________________
Vogue tdv8 08MY poverty pack - wow

Scrap that Phil. I double checked this morning and park is not holding. So it could be as you say. Is the fix a big job? Should I get anything else done while the box is out? ______________________________
Vogue tdv8 08MY poverty pack - wow

Also, Park will only hold if you have a complete drive train... i.e. 4 driveshafts, 2 working diffs, props shafts etc etc so well worth checking them first sir

Thanks Cam, yes I started thinking back to your possibilities. So handbrake on, jack it up one corner at a time, and check each wheel for movement and noise, starting at rear? ______________________________
Vogue tdv8 08MY poverty pack - wow

No handbrake as that will lock the rear wheels sir... (the handbrake is like a regular car these days)