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[feeutfo]

thanks i appreciate your help will look down track of re doing atf first see what transpires ,thanx

fuchs titan 4000 is good Dexron 111 but you may prefer the cheaper Coma stuff until your sure its worth persuing.

Filter can be cleaned in parafin or similar.

Remove both sumps to got the the most fluid out possible, some will remain in the torque converter, unavoidable.

If it transpires its worth putting back together you'll need two gaskits to refit the sumps, or the correct instant gaskit will do to save costs.

Beware spilling the old atf, easy done and it stinks.

Best of luck.

[brian36]

many thanks will get done asap thanx
 
IS THERE ANYONE IN FIFE THAT CAN REPLACE THE ATF AND DRAIN SUMP ALSO CHANGE FILTER PLEASE ?
many thanks

[Richard A]

Make sure you get the 'people' to remove both the large and small sumps, the small one will have the remains of the 'thrust washer' in it if it has broken.
A clean filter and new Dexron 3 will ensure a 'level playing field', good luck.
regards
richard a

[hotel21]

many thanks will get done asap thanx
 
IS THERE ANYONE IN FIFE THAT CAN REPLACE THE ATF AND DRAIN SUMP ALSO CHANGE FILTER PLEASE ?
many thanks

Brian - been busy with various things of late so been unable to persue as well as perhaps I ought.

If you get a hold of some ATF, same spec as I gave you, then we can do an autobox fluid change this weekend, weather permitting.  Could also see if theres any thrust washer debris in the sump at the same time..... 

Personally, I suspect a low fluid level and not a lot more, but willing to investigate further...   

[brian36]

thanks bruce,
will get some more atf .will have to get it sat morning but guess d&a or someone eh,speak soon,
all the best,
brian

[Jimbob]

may be worth getting some live data / results of another auto to compare with before you drop the sumps....if there is a duff solenoid may save dropping sump twice (should the need arise to change parts)

[guncharmer]

How many miles has the car done and has it ever towed?

Ignoring any codes your gearbox is displaying symptoms of worn clutch plates and the contaminated oil backs this up. Your symptoms appear mainly when coming out of a bend or accelerating,basically when under load.Again this points to worn clutch plates.Now of course this doesnt have to be the case but its more than likely.
Symptoms first appeared when driving the car home after purchase which again is not a good omen suggesting the car has been offloaded due to this problem.
Your quest is for an economical repair.
The fault code P0730 is also referred to as the gearbox death code due to investigations in most cases resulting in repair not viable due to cost.,worn clutch plates being one of them.
2 options. Firstly,the atf change as yours is certainly goosed but remember this is likely to be a symptom rather than the cause of the fault.You need to not just change but flush as much old oil out as possible and as the torque convertor retains a good deal of atf fluid when you drop the sumps,this means refilling and draining again at least once. I would say in your case twice and then fill again for the third time and then test the car.You need to see the fault gone at this stage not just improvement,just improvement would mean your still getting slip and gradually your going to `cook` the fluid again.If the fault goes completely,then brilliant news,don`t thrash it and it may stay happy for many more miles. So appx. 25 litres of atf fluid,new gaskets(rinse the filter)lots of mess,cursing at the number of bolts holding the sumps on and whatever £ you may be charged if your not doing it yourself.
Option 2,replacement gearbox(advertised on here between £80 -£150 recently) plus fitting, plus gaskets,filter,atf fluid,delivery of box or travelling to pick up or for fitting.
Actually there ought to be an option 3 which is cut your losses and put the car in the nearest auction(these are certainly buyer beware and you can almost expect to find an auto with a knackered gearbox)..
Good luck, you have a bit of hope with the atf change but i think your quest for an economical repair is  gone if that option doesn`t work.

Any redress with the seller?

[brian36]

thanks for last message will try sourceanother gearbox and see what cost involved, regarding the previuos owner not alot of hope he pleads ignorance to all.
told him as car not as described not just gearbox issue then make seek reward from small claims court towards repair. but will see.
will have a look see what its going to cost for gearbox, yes the car has towed and taking into consideration the response from previuos owner he aint got a clue about that either.
it happened today again although when the car revved i managed to teeze accelerator and it engaged again and carried on.
thanks

[pscocoa]

Incorrect ratio is simply when the measured input speed, measured output speed, and the selected gear is implausible.

Input speed is via crank sensor, output speed is via sensor in box, selected gear is ecu derived.

This code is often mechanical or hydraulic so ATF first

How easy is it to replace the sensor in the box and do we have any idea of cost of parts and number of hours to do? - has anyone tried this as a fix for the problem on this thread?

[feeutfo]

Incorrect ratio is simply when the measured input speed, measured output speed, and the selected gear is implausible.

Input speed is via crank sensor, output speed is via sensor in box, selected gear is ecu derived.

This code is often mechanical or hydraulic so ATF first

How easy is it to replace the sensor in the box and do we have any idea of cost of parts and number of hours to do? - has anyone tried this as a fix for the problem on this thread?

box speed sensor would throw a code if faulty, hence advice to interogate the auto box bia tech 2 while your at H21's pleasure.
 TB is merely stating his extensive insite via tech 2 with this code, that being, the speed equation between box output and engine input via gear selected is outside a set perameter, the box knows sumats wrong, but what? the symptoms your experiencing is what.

Advice stands as i see it, visit Hotel 21, tech 2 the box, change the atf etc and go from there. HTH

[brian36]

will be doing exactly that, if h21 free and weather good then hopefully we will succeed !
thanks to all and have a good day!

[guncharmer]

I have just realised by reading another thread that you have already been down the atf fluid change route and then had the level checked by a transmission specialist and at some point someone has checked the fluid and found contaminants and it sounds like this was the transmission specialist checking the level which would be after your fluid change.You mention you thought there was a small improvement before it went pear shaped again.
No harm having an in depth tech 2 analysis though i would suggest another atf fluid change is now probably a waste of time and money .
If you get a replacement gearbox(a gearbox overhaul at a specialist will be big bucks) be sure to check its origin and trust the seller.
I dont suspect the speed sensors as they seem to be doing their job(highlighting the problem in the gearbox) and as mentioned would likely throw their own fault code.
So most likely imho clutch bands. Now this is one of the reasons that this fault code rarely gets cured as an overhaul to investigate and repair causes is not economically viable as a replacement secondhand gearbox from a good source is a much cheaper route.
Again,good luck,i understand your frustration and see you have already spent £390 to no avail. If you had got on the forum sooner i am sure you would have had a tech 2 analysis and a box in for around that.No matter the forum i am sure will get you that back in savings in the future.

[Marks DTM Calib]

Personaly, to me, it does not sound like worn clutches and bands....it sounds like low oil pressure........

[guncharmer]

And potentially curable by topping up the atf

[brian36]

thanks for all your help folks, especially the bosses, its great that you take active assistance.
i will be trying the top up again,hopefully h21 will help?.
and while doing this can i ask, when can i put a wanted advert on for a autobox for this if problem or would any member like to exchange this for another abit cheaper maybe to sell this as parts, can i ask your views on this as to be honest need car and skint !!,
many thanks