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Gearbox limp mode


 
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Patrese
Newbie


Joined: 31 Jul 2020
Posts: 7
Location: Scotland

PostPosted: Fri Jul 31, 2020 16:03    Post subject: Gearbox limp mode Reply with quote

Hi
Have 06 d4d auto landcruiser
Sometimes goes to limp mode
Told gearbox issue
Stop/start resets it
Any guidance would be  fantastico
R
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PostPosted: Fri Jul 31, 2020 16:03    Post subject: Google Ads keep this community free to join!


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Juddian
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Joined: 31 Jan 2015
Posts: 246
Location: Sunny Northamptonshire

PostPosted: Sun Aug 02, 2020 21:14    Post subject: Reply with quote

First thing i'd do is change the oil, not only is sealed for life a load of old cobblers anway, but by dropping and inspecting the oil (for coolant contamnation) you have ruled out that thankfully rare but catastrophic problem of radiators an auto versions (90's suffered this mainly) splitting internally allowing coolant to enter the auto trans fluid.

Even if this isn't the problem it's a service item you've carried out anyway and ruled out that radiator issue to boot, it's a messy job but a reasonable job for a faily competent DIYer, you don't need to buy Mr T's WS oil, but you must use WT standard oil in the 5 speed box, Dexron 6 of most quality oil makes includes WS (World Standard).
You will need an oil pump or syringe to get the oil into the filler hole, which is half way up the OS of the gearbox.

There are several good youtube videos showing how to do this job yourself, you don't necessarily need to hot wire the connections on the OBD port as shown, i used an LED remote thermometer to get the oil to the correct temp for level checking.
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Juddian
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Joined: 31 Jan 2015
Posts: 246
Location: Sunny Northamptonshire

PostPosted: Sun Aug 02, 2020 21:18    Post subject: Reply with quote

Should have said, i drained and refilled 3 sumpfulls initially, roughly 4 litres per drain, then refilled and ran the vehicle for a few minutes in all gears to circulate the oil then drained again, you have to either do this or disconnect one of the radiator cooling pipes and refill as you pump out with engine running, whichever way you choose you won't change every drop of oil because the torque converter will always be holding some oil.
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Patrese
Newbie


Joined: 31 Jul 2020
Posts: 7
Location: Scotland

PostPosted: Mon Aug 03, 2020 11:47    Post subject: Reply with quote

I have already changed the ATF and filter
also  replaced the coolant pipes
still goes into limp mode sometimes Sad
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Juddian
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Joined: 31 Jan 2015
Posts: 246
Location: Sunny Northamptonshire

PostPosted: Mon Aug 03, 2020 13:44    Post subject: Reply with quote

If the gearbox is changing gear ok, picking up smartly from test etc, then maybe it isn't a gearbox issue at all.

Have you asked Toyots to perform diagnostics, i would have thought rural dealers especially in your neck of the woods are less likely to throw new parts at problems hoping upon a fix.
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Patrese
Newbie


Joined: 31 Jul 2020
Posts: 7
Location: Scotland

PostPosted: Mon Aug 03, 2020 17:25    Post subject: Reply with quote

Had diags done
Not by toyota but local
Diagnostic guy
Came back gearbox prob Crying or Very sad  Crying or Very sad
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wooly0000
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Joined: 01 Sep 2009
Posts: 445
Location: wigan

PostPosted: Mon Aug 03, 2020 18:00    Post subject: Reply with quote

Hi Patrese i had problems with my gearbox which in part was caused by a faulty ECU, the fault with the ECU was hard to trace because it it would change gear into 5th then drop back to 4th amongst other things it did  Confused , they built a lighting rig to trace the problem because all the ECU channels read fine  Shocked  hope this helps
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Patrese
Newbie


Joined: 31 Jul 2020
Posts: 7
Location: Scotland

PostPosted: Mon Aug 03, 2020 19:24    Post subject: Reply with quote

Hi wooly
How expensive was it to repair
P
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wooly0000
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Joined: 01 Sep 2009
Posts: 445
Location: wigan

PostPosted: Tue Aug 04, 2020 19:00    Post subject: Reply with quote

just over 3k fella  Crying or Very sad  but it drives better now than when i got it, automatic gearbox in Preston Lancs did it for me, it was in nearly 2 weeks all on all
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Patrese
Newbie


Joined: 31 Jul 2020
Posts: 7
Location: Scotland

PostPosted: Tue Aug 04, 2020 19:50    Post subject: Reply with quote

3k for the ecu prob ? 😭
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wooly0000
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Joined: 01 Sep 2009
Posts: 445
Location: wigan

PostPosted: Wed Aug 05, 2020 20:00    Post subject: Reply with quote

I did a bit of howling meself when the bill needed paying  Patrese, but the good news is it realy does drive well now with a complete refurb of the gearbox ect , so in away it was money well spent, the ecu maybe something to look at, it will be interesting to find out what the problem is.
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Patrese
Newbie


Joined: 31 Jul 2020
Posts: 7
Location: Scotland

PostPosted: Thu Aug 06, 2020 13:09    Post subject: Reply with quote

Hi wooly
Sorry did you fix ecu or rebuild gearbox
R
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wooly0000
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Joined: 01 Sep 2009
Posts: 445
Location: wigan

PostPosted: Thu Aug 06, 2020 19:25    Post subject: Reply with quote

I bought a new ECU although you can get a great refurbished one for a lot less than i paid and the gearbox was completly rebuilt as there was quite a bit of damage. My old ECU was faulty and i didnt want to risk buying a 2nd hand one with the potential of it being faulty after spending so much money on a completly rebuilt box so i went the whole hog. I also needed needed new gearbox mounts.........

The mechanic who fitted the ECU said its behind the dash board and very hard to change because of the location.
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Patrese
Newbie


Joined: 31 Jul 2020
Posts: 7
Location: Scotland

PostPosted: Thu Aug 06, 2020 21:31    Post subject: Reply with quote

Ill need to think
3k lot of moola
Especially just now
R
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