The Toyota Landcruiser Owners Club

[Swampy]

Hi All

Just found this site and what a good and helpfull site it is

I have a 93 vx LC and hope someone can help me out with some question i have:-

1-I am going to rebuild the front axle hubs as i'm getting a clicking noise when i driving out of a corner and i took if for it's last M.O.T i had a bit of play in one of the wheel bearings,now what i would like to know is what are Milners rebuild kits like ? i have read on here that there seal kits are ok but to get the shaft seals from Toyota,are Milners CV ok as well ?(as i went to Toyota for a price and i would have had to sell the LC to pay for the bits )

2-My LC is auto,now when i start to slow down ie- take my foot off the gas (but not brakeing) my overdrive light flash's on the dash and sometime's it feels like the brakes have been put on hard (like pressing hard on the brakes and then taking your foot off quick) and you lean forward(hope you know what i mean lol) should it do this or is it time to rebuild the box as well ?

I hope someome can help me out

Swampy

[Google]

[DaveN]

The overdrive light will flash to show a fault code. However, are you sure the backing off isn't inadvertently operating the overdive off function, which will have the effect of knocking it down a gear (if in top gear that is).

[Swampy]

Hi DaveN

Thank you for getting back to me on this.

So with the O/D light flashing do i have to go to a dealer for them to look at it or is there a way i can do this myself ? To night i was sitting at a set of light and the O/D was flashing.

You say about "inadvertently operating the overdrive off function" come to think of it it dose feel like it is dropping down a gear or two (but i can not remember if the rev's go up) and then going back into overdrive all with in a second or two,as this seams to happen from a high speed, like coming off a motoway on to the slip road lift your foot off the gas but not breaking.Again this there something i can do or look at or is it back to a dealer again.

Swampy

[DaveN]

I think you can flash the codes from the diagnostic socket. Give me a little while and I'll dig out the manual.

[DaveN]

Here you go:-

Turn ignition ON (do not start engine)
Turn OD switch to ON (ie so the light on the dash ISN'T on)
Put a jumper wire between connection TT and E1 terminal of the diagnostic connect located in the engine bay (up by the bulkhead)
Read the code off the OD OFF warning light on the dash.
If operating correctly, light will flash 2 times/second constantly.
If there's a malfunction, the first digit of the code will flash, followed by a pause of 1.5 secs, then a second digit of the code will flash.
Count the number of flashes for each code digit.
For example, 4 flashes, then a pause, then 2 flashes is code 42.
Ther are nine codes - 41 42 61 62 63 64 65 86 88

However, I'm still wondering if there isn't something wrong with your OD switch, so maybe worth seeing if you have any codes, then having a fiddle with the switch.

Has anyone been fiddling with the throttle positioning sensor or the kickdown cable?

[Swampy]

Thanks a lots dave for this i will try it in the morning and let you know how i get on.

Do you know what the meaning of the codes are ?

I think that the switch is ok cos when i push the switch it dose come out of overdrive and go back into overdrive so that works fine.

As for someone "fiddling with the thottle positioning sencsor or kickdown cable" not as i know of, i have had the LC for just under 2 years now and the only time i have been under the bonnet is for oil and fuel filters and bits cam belt new recon rad and headlights relays,but have not been touch the k/d cable or throttle senser,but come to think of it it as always done this,so someone else could have,i just put it down as the gearbox had some sort of brake thing on it

Swampy

[Swampy]

Hi Dave

Ok i had time to to look at the diagnostic plug and the codes are:- 41 and 64,So what is the bad news then

Swampy

[DaveN]

OK - 41 is defective throttle positioning sensor or circuit, possible short circuit or severed wire.

64 is defective lock-up solenoid or circuit, possible short circuit or severed wire (open circuit).

Have a good look around the connector for the TPS, undo it and make sure it's clean etc. Also dig out the main loom to the tranny and it's ecu and make sure it all looks clean and OK. I'll have a look in the manual for the set-up of it, and also how the o/d solenoid checks out.

[Swampy]

Hi Dave

So the worst it could be is a new sensor and a solenoid? not to bad but still knowing Toyota's it still a going to be a arm and a leg to buy new

I ordered my rebuild kit for the axle hubs today from milners and got a haynes book as well,so i will look in the book for the throttle sensor and solenoid,saying that what solenoid should i be looking for ?

What is the TPS ? it rings a bell but i can't think what it is

I will be doing the front axle on sunday,any thing i should know or lookout for be for i start ? ans i will look at them bits as well.

Swampy

[DaveN]

TPS = Throttle positioning sensor.

All the connectors for the tranny are down by the starter motor, so if yours is anything like mine they'll all be covered with oil, so that would be a good place to start.

The TPS is sat on top of the injection pump held by a couple of little screws. To check this, disconnect the plug and apply 5volts across terminals VC and E2. You'll have trouble getting a 5v supply, so I ran one from the socket that the plug was connected to. Basically, disconnect the socket and run a short piece of wire between the plug and socket connections E2 and VC. You then need to put a voltmeter across pin VTA and E2. Alternatively, leave it all connected and using sharp probes, probe the wires through the insulation. Turn ignition on and measure the voltage at full throttle. Should be 0.6volts, and go up and down smoothly as the throttle open/closes.

It's a bit hard to explain, but there is a very good diagram in the factory manual.

It will also be worth checking the kick-down cable adjustment. With closed throttle the little stopper should be 0.5-1.5 mm from the end of the cable outer.

The Haynes manual is reasonable, but doesn't show things like checking the TPS. If you're serious about doing repairs and keeping the truck for a while, the factory manuals are worth their weight in gold, showing how to check everything, locations of connectors, pin diagrams etc. I think the chassis one was about £75. Publication# is RM184E.

The only reference I'v been able to find regarding OD solenoid, is something on the cruise control. Does yours have cruise?

You really want to use genuine toyota axle seals. I know a few people that have had trouble with the milner ones, and end up doing the job again when they find axle oil leaking into the hub. The rest of the bits are ok to use. Get 3 from the dealer, just in case you *beep* one up driving it in.

[Swampy]

Hi Dave

Thank you for all this info,as said before i will try and do all this on Sunday(if i can fit it all in i think i might need more hours in a day? )

I have ordered the kit off milner now and got on order the axles seals from Toyota.

I only got the haynes manual to help me out with the axle build just hope it helps but i may end up getting the Toyota book in the end.

No mine dose not have cruise control so where do i go from here if thats to do with the cruise control ?

Swampy

[DaveN]

The manual only shows the basics for the tranny, like fault finding, valve block removal and tranny removal. Unfortunately it doesn't show all the components, for that there's a seperate manual (that I don't have).

Check out the TPS and kickdown cable first. You can reset the fault codes by removing one of the fuses, take a look in the haynes manual for the correct on. I think it's something like a 10A dome one.

If you still have the problem, I suggest you go to www.automatictransmission.com.au and go to the 'ask orto' link, and post your question. They're specialists on trannys especially for common (to them) toyota LC stuff.

I know when my cable and tps were way out after I had the pump done, the shifting was allover the place, holding gears then changing with a hell of a thump etc.