A screwed up transmission on a Landcruiser

Submitted: Wednesday, Apr 29, 2009 at 18:26
ThreadID: 68363 Views:2328 Replies:8 FollowUps:7
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G’day everyone.

I recently bought an 80 series cruiser 4.2 turbo diesel automatic with 165 000 on the clock.

When I put it in low range, I have to be doing about 3500 rpm for about 100 metres for it to go from 1st to 2nd, the same thing to go from 2nd to 3rd, and I can’t get it to 4th at all.

This is with it in overdrive and with it on economy, and it's worse with overdrive off and on power of course.

I've tried playing around with the throttle, it still doesn't change.

At the end of the day, when I’m on tracks, I can’t go fast enough and the engine’s working too hard.

When it does change, it doesn’t change all that smoothly (probably because the revs are so high.)

It works perfectly in high range and changes very smoothly.

This car hasn’t been used in low range since November 1997.

Has anyone got any ideas of what could be wrong and/or what I need to do to fix it.

Thanks
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Reply By: Skippy In The GU - Wednesday, Apr 29, 2009 at 18:31

Wednesday, Apr 29, 2009 at 18:31
Are you sure they have a 4th gear in low range.
AnswerID: 362303

Follow Up By: kingkennas - Wednesday, Apr 29, 2009 at 18:36

Wednesday, Apr 29, 2009 at 18:36
I've always thought they do and let's just say if they don't, I can only go about 25 km/h in low range.

The fastest I can get it going in low range at the moment is 25 km/h, that's heaps heaps slower than others with exactly the same car, and it's too slow for the tracks.

If this is as fast as it can go, half the time I'm on the tracks, I'll be using high range like an all wheel drive, so much for having a 4wd.
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FollowupID: 630061

Reply By: Member - Andrew (WA) - Wednesday, Apr 29, 2009 at 18:55

Wednesday, Apr 29, 2009 at 18:55
Just an obvious one....you have checked the trans oil level..have you?

Had a family member years ago complain about auto trans gear shifting only to find there was basically no oil in it....
AnswerID: 362309

Follow Up By: kingkennas - Wednesday, Apr 29, 2009 at 18:57

Wednesday, Apr 29, 2009 at 18:57
Yes I did, I didn't even drive it 2 km home before checking.
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FollowupID: 630065

Reply By: Horacehighroller - Wednesday, Apr 29, 2009 at 20:26

Wednesday, Apr 29, 2009 at 20:26
Hi Kingkennas,

I have an HZJ 105 auto and the shift points in low range are at significantly higher RPM than in high range.

I'll check it tomorrow but ftom memory I'm fairly sure it uses all 4 gears.

Peter
AnswerID: 362330

Reply By: ben_gv3 - Wednesday, Apr 29, 2009 at 20:33

Wednesday, Apr 29, 2009 at 20:33
Could it have a set of crawler gears in it, as these gears only affect low range?
AnswerID: 362333

Follow Up By: kingkennas - Wednesday, Apr 29, 2009 at 21:02

Wednesday, Apr 29, 2009 at 21:02
I'm 99% sure it doesn't.

I bought this from a friend and he told me every little thing he could about the car and looked after me and didn't say anything about crawler gears.

I called him about it and he was puzzled and that's when he said that the last time he used low range was November 1997 on a trip that I went on with him, he said it worked perfectly then and I saw it working perfectly on that trip and many others.

If it does have crawler gears, I don't know if I want them, at least this low, it's a bleep of a thing to drive on easy sections of track where you don't want to be going walking pace and obsticles to, because when you want 2nd gear, you have to use 1st because it won't let you use 2nd and nearly every obsticle, with these gear ratios and engine, I need 2nd.
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FollowupID: 630081

Reply By: Member - Stuart P (WA) - Wednesday, Apr 29, 2009 at 22:55

Wednesday, Apr 29, 2009 at 22:55
mine uses all 4 gears ,except with center diff locked
AnswerID: 362367

Reply By: Simon C - Wednesday, Apr 29, 2009 at 23:21

Wednesday, Apr 29, 2009 at 23:21
has somebody mucked aroiund with the switch on the transfer case that is ment to lock the center diff when low rang is selected. LCOOL has a section when the removal of these wires alows low range, but the center diff lock is disabled to prevent transmisson wind up on hard ground when you need to use low range (revsersing, inclines etc)

Simon C
AnswerID: 362376

Reply By: Tony - Thursday, Apr 30, 2009 at 07:42

Thursday, Apr 30, 2009 at 07:42
I wonder why you want to go fast in low range anyway. Just leave it in 4H.
AnswerID: 362392

Follow Up By: kingkennas - Thursday, Apr 30, 2009 at 10:40

Thursday, Apr 30, 2009 at 10:40
Because forget about obsticles, on trail (easy sections of track), I won't be able to keep up with everyone else in my convoy.

It's not just the speed factor, it's the gear changing.

I've been in cars exactly the same as this as a passanger, and they don't need to have the revs at 3500 for at least 100 metres for it to change, if I did this all the time, I'd ruin the car probably and on trips, I'd use too much fuel and have a bleep fuel range and it'd hurt my wollet.

Remember, when you're on hgh country trail, you need to be able to go about 40 km/h at times, but still need low range for the up hills along the way and for engine braking going down hills.

When you occasionally need low range in the sand for a certain dune (power but still a little momentum), I can't use low range.

Like I say, the old owner said that he never had the put the revs this high for such a long distance to change the gears.

A family member used to have a car exactly the same even set up the same and said that this never happened to him.
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FollowupID: 630126

Reply By: Member - DOZER- Thursday, Apr 30, 2009 at 08:00

Thursday, Apr 30, 2009 at 08:00
Dude
This is normal, mine does this too...if you want to have it shift as in high range, get underneath the cruiser and take the plug off the switch in the 1 oclock position above the rear driveshaft...tape it up so dirt doesnt get in.....what you have just done is remove the low range signal to the ecu that controls tranny lock and shift points....you will have to lock the transmission normally from the dash switch when in low as you do when in high, and you will also have the added benefit of being able to reverse things in low range constant 4wd. The tranny wont know its in low and will shift as per it does in high aswell as go into 4th and lock the torque converter
Andrew
b4 you bag me out, walk a mile in my shoes, then your a mile away and have my shoes :)

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AnswerID: 362394

Follow Up By: Member - DOZER- Thursday, Apr 30, 2009 at 08:04

Thursday, Apr 30, 2009 at 08:04
PS.....i cant resist.....did u used to own a nissan?? (screwed up tranny in cruiser) Toyotas are different m8....that auto will outlast your cruiser
b4 you bag me out, walk a mile in my shoes, then your a mile away and have my shoes :)

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Classifieds: Bt50/Ranger Speedy grande2 18x8 alloys (x4), Landcruiser 200 series/100 series 4 alloy rims with tyres and nuts GC

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FollowupID: 630110

Follow Up By: kingkennas - Thursday, Apr 30, 2009 at 10:43

Thursday, Apr 30, 2009 at 10:43
Yes I did, a SWB GQ.

With regards to quality, when it was only 140 000 km old, I had to rebuild the transmission, all the seals were stuffed which lowered the compression which caused it to not click into gear properly.

$3500 to fix it and it was only 140 000 km old.
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FollowupID: 630127

Follow Up By: Tony - Thursday, Apr 30, 2009 at 11:17

Thursday, Apr 30, 2009 at 11:17
Seems to me that U should have got a manual instead of an auto.
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FollowupID: 630129

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