Low range don't pass 4th gear 6 speed auto trans.

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Low range don't pass 4th gear 6 speed auto trans.

Postby Jenssv on Tue, 19 Mar 2019 7:36 +0000

Hello everyone:

I want to know if is a normal that the gearbox don't allow me to pass to 5th gear when I'm in 4low. In case that is normal, is anyway to bypass that?
Thanks!

Jens.Image

(Ps: Sorry for my english, I'm writting from the other side of the world, Chile)
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Re: Low range don't pass 4th gear 6 speed auto trans.

Postby Gipsy on Wed, 20 Mar 2019 5:33 +0000

Jen's if you need 5th and 6th maybe you should be in h4?
Cheers Gipsy :D although I'm sure somebody will challenge that :lol: even Einstein wasn't certain of his theories.
My 2013 auto D4D DC SR5, prefilter, 3" exhaust and Chip with egt probe, stock SR5 rims with Toyo Open Country AT2 265/65R/17's
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Re: Low range don't pass 4th gear 6 speed auto trans.

Postby hiluxxury on Wed, 20 Mar 2019 7:43 +0000

Yes it's normal. Toyota has done this to protect the planetary gearset which you can probably hear screaming while you are in 4th gear.
I might be wrong.

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Re: Low range don't pass 4th gear 6 speed auto trans.

Postby Jenssv on Thu, 21 Mar 2019 7:19 +0000

Gipsy wrote:Jen's if you need 5th and 6th maybe you should be in h4?


Hi!

H4 is perfect for cruising in the sand dunes here in Chile, but there are 2 reasons why i want to use 4L:
-In 4L it disengage all the electronics (traction control, abs, etc), giving me all the power to the wheels.
-In 4H i don't have a perfect ratio for the sand dunes; the 2nd 4H "dies" climbing and the 1st gear is too short and I bog down.

Here is very usual to go at 100 kph in 4L :?:
https://www.youtube.com/watch?v=AXKY84oy7uo

Greetings from Chile!

Jens.
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Re: Low range don't pass 4th gear 6 speed auto trans.

Postby Jenssv on Thu, 21 Mar 2019 7:21 +0000

hiluxxury wrote:Yes it's normal. Toyota has done this to protect the planetary gearset which you can probably hear screaming while you are in 4th gear.


Hi!

Yes, I can here it screaming :shock:

Jens.
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Re: Low range don't pass 4th gear 6 speed auto trans.

Postby Gipsy on Fri, 22 Mar 2019 8:36 +0000

Jen's maybe the screamin'is trying to tell you..... I'm working too hard!

Does your version of Lux allow you to turn off the TRC and other stuff? Just press and hold the vsc button for 5 seconds ;)

Of course I should qualify my statement... I don't have a n80 so I don't know if they have a vsc button :?
Cheers Gipsy :D although I'm sure somebody will challenge that :lol: even Einstein wasn't certain of his theories.
My 2013 auto D4D DC SR5, prefilter, 3" exhaust and Chip with egt probe, stock SR5 rims with Toyo Open Country AT2 265/65R/17's
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Re: Low range don't pass 4th gear 6 speed auto trans.

Postby Jenssv on Tue, 26 Mar 2019 10:10 +0000

Gipsy wrote:Jen's maybe the screamin'is trying to tell you..... I'm working too hard!

Does your version of Lux allow you to turn off the TRC and other stuff? Just press and hold the vsc button for 5 seconds ;)

Of course I should qualify my statement... I don't have a n80 so I don't know if they have a vsc button :?


Hi!

Pressing the TRC button (for 5 seconds) deactivates traction control almost completely (it still losing some power) but the abs for example still on in 4H and there is not an exclusive fuse for the abs.

For the moment I'll see if in 4L and the some "extra power" that I hope i'll get with some modifications will keep me the 4th gear "pulling up" climbing the dunes.

Thanks for your advices!

Jens
Ps:

Picture from my babe in the workshop

Image
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