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[unlucky alf]

just when i thought id got myself up & running i set off this morning,reversed out of the drive, select "D" & away i went, got about 25 yards [half way across the crossroads] & nothing, ive totally lost all drive, got it back to the house by pushing it, jacked up the side to check the atf level & with it running i took the plug out & got about 2 litres of atf come gushing out, its almost like the whole auto system has chucked all the fluid back into the box, not only that it was cold despite of the engine being warmed up,& for what is was worth i did run the selector up & down the non exsistant gears so obviously my question is why did i lose all drive suddenly & why was there so much atf coming out of the g/box filler plug, im really getting peed off so somebody please help, oh & there was no warning pop up on the screen either.

[Entwood]

If memory serves me ... as ATF breaks down it actually expands, which might explain the excess fluid you got.

Was the fluid you got out a dirty browny/burned colour ?? if so its another sign of fubared ATF.

Question is why the oil is burned ... could just be very old ?? or is there a major problem inside the gearbox that has caused it... that side is beyond my knowledge I'm afraid.. but I'm sure an more knowledgeable person will pass by shortly and put me right !!

[Kevin Wood]

My guess is that the fluid pump has failed (thrust washer?) and the torque converter, cooler pipes, etc. have therefore emptied hence the additional fluid in the sump.

Front sump off to have a look, I reckon.

Also, have a look at the fluid for contamination, and see if it smells burnt.

Kevin

[unlucky alf]

thanks ENTWWOD, the thing is ive had the car on the road for exactly 1 week since fitting another g/box so the atf was as red as it was new, didnt even get any warning it just went all of a sudden, i probably done 100 miles yesterday & it drove lovely thats why im surprised about what happened today, but thanks anyway.

[unlucky alf]

cheers KEVIN, so if im correct ive got to drop the front sump & look for shrapnel, oh happy days

[Entwood]

As Kevin says then .. sounds like mechanical failure internally..

Can you get the box replaced under any warranty as you've only just changed it ?? I know some places give 28 days on stuff .. but not everywhere does...

[unlucky alf]

i got it off MUTANTCAV so its down to how nice he wants to be ;)could also do with some help with it as last time it was a total nightmare on my own on 2 axle stands & 2 trolley jacks, not pleasant

[Kevin Wood]

If the gearbox has been off so recently, might be worth checking the selector lever, switch and wiring are all present and correctly adjusted.

Kevin

[Entwood]

Stupid thought has occured to me ... (nowt unusual I know)

Given that a large amount of fluid came out, even with the engine running, and we know that this occurs with the engine not running.....

and the reported total and instant lack of drive

could it be the input to the gearbox from the engine has failed ??

Think its called the spigot something or other ....  so although the engine is turning the input to the gearbox is not ....  if that makes any sense to anyone ??

[unlucky alf]

i see your point KEVIN but it drove o,k all day yesterday, also it wouldnt explain the g/box spewing out 2 litres or more of atf even with the engine running, i filled it correctly when i fitted it & double checked it as i like to be 100% sure, also i would still be able to select 1,2 &3 but getting sod all drive from anywhere.

[Kevin Wood]

i see your point KEVIN but it drove o,k all day yesterday, also it wouldnt explain the g/box spewing out 2 litres or more of atf even with the engine running, i filled it correctly when i fitted it & double checked it as i like to be 100% sure, also i would still be able to select 1,2 &3 but getting sod all drive from anywhere.

No, I was clutching at straws.  

The other possibility I can think of is that the filter has fallen off and the pump is therefore not picking up oil. Was the filter changed with the 'box? Any chance it could have been inadequately torqued?

Drive from engine to fluid pump is from the lugs on the nose of the torque converter so unlikely to have failed without a lot of drama, I'd say.

My prognosis is that fluid supply has failed for some reason, TC has emptied hence loss of drive and excess oil.

Don't suppose the fluid cooler pipes have kinked? Can't see that affecting oil supply to the main bits of the box though. :-/

Kevin

[unlucky alf]

cheers ENTWOOD, the main shaft from an auto goes into the torque converter so i dont believe there is a spigot as such, the t/c bolts to the ring gear so when the engine is running its got to turn!, now i know why ive avoided automatics!  humphhhhh

[unlucky alf]

cheers KEVIN, ive checked the pipes & they are fine, as for the filter i didnt touch it as i didnt want to mess about with it until i knew it ran o,k, then i was going to do the lot engine oil change as well as the box as ive just ordered my ecu chip so wanted everything pukka so to speak for when the power increases, this has buggered those plans innit

[sassanach]

there are a few things you can check before you condemn the box, for instance your system voltage ie 14.4 volts at the battery,if it goes beyond 18v the gearbox will lose ALL drive.also check your electrical connections on the side of the box as one off them  will b@gger it up also.at the moment you can rule out pump failure or tc failure simply because they would make "horrible" noises  when they fail.filter falling off will make no difference to the oil pickup as the inlet is permamently submerged in oil anyway.for what its worth at the moment i am inclined to think you have an electrical issue.

[unlucky alf]

thanks sassanach, im still confused as to why so much atf came out of the plug, by rights if the pump is working surely i wouldnt have got over 2 litres of atf come gushing out of the filler hole as the pump would have been cycling it, anyhow i will check the electrics tomorrow as yet again its bleedin` raining again