M124 - 722.4 transmission problem

[s0nja83]

Hello every all !!
I'm new about this forum, I write to have any suggest about a 722.4 automatic transmission rebuild.
Before rebuilt we have slipping in 4 clutch and problem with reverse. I completely rebuilt transmission and I found broken plate of rear clutch and a sealing of the main shaft broken, I replaced all the frictions, seal, gaskets and bands.
Now I have no second- third- fourth clutch. Only first and reverse. My colleague changed all the tubes for depressure , maybe some tube are in the incorrect position? Can the vacuum valve bring no shift? Or the accelerator control ? Thank you in advance !!

 

[DREAMER NO2]

s0nja83 Funny this was a question asked on another forum ,.My answer to him was check out your kick down switch . It can be found under the foot pedal .

 

[s0nja83]

s0nja83 Divertente questa è stata una domanda posta su un altro forum, la mia risposta a lui è stata controllare il tuo interruttore kick down. Si trova sotto il pedale.

THANK YOU for your replay. The kick down is on the transmission in this case and all seems to be work. Tomorrow I will check. In the meanwhile I re opened the transmission and all was good without problem....

 

[DREAMER NO2]

Sorry but you dont understand how the kick down operates there IS a switch under the foot pedal,,, check it out again.

 

[s0nja83]

Sorry b

Sorry but you dont understand how the kick down operates there IS a switch under the foot pedal,,, check it out again.

ut you dont understand how the kick down operates there IS a switch under the foot pedal,,, check it out again.

Ok, I will check and let you know!! thank you in advance, pray for me

 

[DREAMER NO2]

Will do .

 

[s0nja83]

So, I have some news about the Car. I reassembly the transmission, checked with the air all clutches and the bands and all was good. Put the trans on the car and found the switch under pedal. I checked the contacts of the switch and physically work properly. I tried to use the car without this switch and the car remain again only in First. I tried to disconnect the solenoid of kick down (on the rear of transmission) and no change again. I checked the electric current on this switch and solenoid and they are normally alimented and close contact with negative. I really can't found a way out....

 

[DREAMER NO2]

How about the vacuum is that working right . This plays a big part in changing the gears

 

[s0nja83]

Che ne dici del vuoto è che funziona bene. Questo gioca un ruolo importante nel cambiare le marce

we test the vacum and all is good....

 

[s0nja83]

I'm going to think about again .... May the transmission have this problem by the incorrect oil? I use Dextron PC synt Pakelo (ATf4+) , with MB specifics 236.10/236.11

 

[DREAMER NO2]

Are the cables adjusted right under the bonnet ? if the wrong setting the box wont change as it should .And the auto box oil should be ATF