auto gearbox

greetings all the oil in the autobox is due for a change never done this before had it done for me are there any pitfalls or is it straight forward

Never done it. I have read threads on here about it though. There are two bolts close to each other, I think one is the fill plug, if you accidentially undo the other one you will need to strip the gearbox to fix it so be very careful.

its tech bulletin 0002

Bulletin Number - 0002

Issue - 2

Date - 06.02.2002

Model - Freelander

Affected Range - All KV6 and Td4 Automatic derivatives (i.e. JATCO Transmission)

Re-Issue Information - PROBLEM, CAUSE and ACTION text amended. Issue 2 of this bulletin has become necessary due to continuing reports of incorrect bolt removal.

Problem

INCORRECT IDENTIFICATION OF GEARBOX FLUID LEVEL PLUG

Cause

When checking the fluid level on the JATCO automatic transmission incorrect bolts are being removed / loosened, causing serious damage & malfunction.

Removal of the reduction gear brake band bolt can cause total loss of drive or a substantial reduction in the performance of the transmission.
Removal of the parking pawl rod plate retaining bolt (located next to the XYZ switch) will result in gear selection problems / gear lever movement restrictions.
Under NO CIRCUMSTANCES must these items be removed or loosened - doing so will invalidate any warranty claim made. In normal service, only the fluid level plug and fluid filler plug should be removed.

Action

The level plug (arrowed) is fitted vertically into the underside of the gearbox casing, alongside the selector cable bracket and can be identified by its 5mm Allen socket head. The level plug closes the lower end of an internal level tube, therefore only excess fluid will be expelled when the plug is removed.



Observe due care when draining gearbox fluid as the fluid can be very hot.

An advance copy of a revised Workshop Manual check and top up procedure is attached to this bulletin. Please ensure that all workshop personnel are aware of this information, which will be added to the Workshop Manual at the next opportunity.

Parts Information

Not applicable, issued for information purposes only.

Warranty

Not applicable

Check and top-up fluid

Check

1. Position vehicle on ramp.

2. Apply handbrake and position chocks under front and rear wheels.

3. Remove underbelly panel.

4. Connect TestBook to monitor gearbox fluid temperature.

CAUTION: The gearbox fluid level must only be checked when the temperature of the fluid is between 35° and 45°. The reading obtained will be incorrect if the fluid is outside this temperature range.

Only use the LRN402 “red” auto oil from main dealers in your Jatco. £10 per L from main dealers. The dextron II stuff was used in the US and they had problems with it.

cheers chaps not sure if i have got the balls to do it basically then one slip then your in the s##t

tincan said:

cheers chaps not sure if i have got the balls to do it basically then one slip then your in the s##t

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If you do the change accurately measure how much comes out, this way by replacing an exact same amount you will not be underfilled.
How many miles has the box done? Is there any sign of any autobox leakage on the undertray?

JonFre said:

If you do the change accurately measure how much comes out, this way by replacing an exact same amount you will not be underfilled.

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Unless it is currently already underfilled.

howardo said:

Unless it is currently already underfilled.

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Which anyone with a modicum of common sense will realise.

JonFre said:

Which anyone with a modicum of common sense will realise.

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That rules out most people

JonFre said:

Which anyone with a modicum of common sense will realise.

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Thus what you said was total bollox and no way to ensure that the gearbox would not be underfilled.

answers to a few questions box has done 141000 no leaks and no probs yet just how much oil does the box hold then?

tincan said:

answers to a few questions box has done 141000 no leaks and no probs yet just how much oil does the box hold then?

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According to the Haynes manual;

Jatco automatic transmission (td4 engine)

4 litres after draining, if filling from dry then add a further 4.5 litres.

cheers matey suppose its got to be the exact oil aswell let me guess land rover only

howardo said:

Thus what you said was total bollox and no way to ensure that the gearbox would not be underfilled.

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I had assumed that anyone with the ability to remove the undertray and then find the correct drain plug would also have the ability to carry out the correct fill procedure thus ensuring the correct level was arrived at.
By measuring the amount removed as against the amount added they would know if the box had been running with the right amount of fluid. Also by initially adding an amount the same as was drained before carrying out the level procedure some time is saved.
Having drained/refilled boxes of all types I think it helpful to know the quantity removed. If the oil removed is in poor cndition it is necessary to do more than one change, in this case knowing the level is correct after the first change the subsequent change can be quickly carried out without the drawn out levelling procedure by simply replacing the same amount drained.
If you don't want to know how much you drain out then the answer is apparent.

tincan said:

answers to a few questions box has done 141000 no leaks and no probs yet just how much oil does the box hold then?

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If a Jatco box has done 141k miles it needs good fluid in it! Compare the colour and smell of the drained against new fluid, if its lost it's redness do more than one change as you only get half of it out each time. You need to do a few miles between changes.
The levelling procedure on Jatcos is a bind as they don't have a dipstick.

thanks for that jonfre think will leave it to experts things are well in freelander world want to keep it that way lol

JonFre said:

If you do the change accurately measure how much comes out, this way by replacing an exact same amount you will not be underfilled.
How many miles has the box done? Is there any sign of any autobox leakage on the undertray?

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This is what you said and its misleading rubbish.
The only way to check it has the correct amount of fluid in is with the vehicle jacked up and level and with the temp at 35 to 45 degrees.Then with the engine started move from P through all gears for a few seconds then put it back in P. Remove filler plug add fluid until it starts to flow out then move through gears again and back to P, allow any more excess fluid to drain out and refit the fill plug.

why is everythin an arguement

nathan5346 said:

why is everythin an arguement

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Its not

snigger