2018 tranny "Lock" mode

The new gas engine 3.5L v6, Transmission, Transfer Case, Oil, Differentials, Axles, Exhaust...

Moderator: volvite

pathboy
Posts: 3
Joined: Mon Nov 06, 2017 11:55 am

2018 tranny "Lock" mode

Postby pathboy » Mon Nov 06, 2017 12:10 pm

I think I understand that this locks auto-locking hubs into full-time 4-wheel drive which distributes power equally to all 4 wheels, right?

I think I also understand that this mode will kick into "Auto" above a certain speed, right?

If the above are correct:
1. will "Auto" mode be power distribution Front and Rear, or will it be asymmetrical to each wheel?

2. will "Lock" mode be power distribution Front and Rear, or will it be asymmetrical to each wheel?

3. is there anything (mechanical, electronic, other?) which facilitates LSD functionality?


User avatar
disallow
Site Admin
Posts: 2807
Joined: Wed Aug 13, 2008 9:02 am
Location: Winnipeg, Canada

Postby disallow » Mon Nov 06, 2017 12:44 pm

your 2018 doesn't have 'locking hubs'. The CV Shafts are hooked up 100% of the time and spin all the time.

The transfer case decides where the power goes, front or back, and the definitely non-LSD differentials distribute power however they see fit.

To see it in action (or rather, inaction) see the following video.

https://www.youtube.com/watch?v=AKEh__wVjn0

The new Pathfinder is a crossover, and not really an offroad vehicle.

pathboy
Posts: 3
Joined: Mon Nov 06, 2017 11:55 am

Postby pathboy » Sun Nov 12, 2017 10:20 pm

disallow wrote:your 2018 doesn't have 'locking hubs'. The CV Shafts are hooked up 100% of the time and spin all the time.

The transfer case decides where the power goes, front or back, and the definitely non-LSD differentials distribute power however they see fit.

To see it in action (or rather, inaction) see the following video.

https://www.youtube.com/watch?v=AKEh__wVjn0

The new Pathfinder is a crossover, and not really an offroad vehicle.
@disallow: thx for the great and detailed reply

User avatar
eruby
Posts: 26
Joined: Thu Sep 28, 2017 8:42 pm
Location: Upstate SC

Postby eruby » Mon Nov 13, 2017 7:48 am

disallow wrote: To see it in action (or rather, inaction) see the following video.

https://www.youtube.com/watch?v=AKEh__wVjn0
So I would think with ESP turned off and diff locked, the wheels would spin like the VW and probably make it as far as the VW. I agree this is no true 4x4 but I think the video didn't have the settings needed for that hill.

User avatar
disallow
Site Admin
Posts: 2807
Joined: Wed Aug 13, 2008 9:02 am
Location: Winnipeg, Canada

Postby disallow » Mon Nov 13, 2017 7:59 am

Looks like the cvt was causing some issues too.

Would be worth a try though.

User avatar
disallow
Site Admin
Posts: 2807
Joined: Wed Aug 13, 2008 9:02 am
Location: Winnipeg, Canada

Postby disallow » Mon Nov 13, 2017 8:15 pm

Also ,in my experience, an aggressive tire would have probably helped as well.


Return to “R52 Engine, Driveline and Powertrain”