hicks777
2nd October, 2023, 09:36 PM
Hello,i am having issue with my transmission 7g tronic 772.9. sometimes ecu triggers code "incorrect gear ratio" or "gear is slipping"
But problem is when acceleration foot down shifting gears from 2 to 3 happens with slip and even completely stalls for second on 2000-2500rpm. same thing if i shift to manual third gear it can stall for second then pick up rpm again usually happens on 1500-2500rpm. also i noticed on motorway when you put foot down i can feel vibration on any gear for couple seconds then it goes away but thats usually noticed when you using cruise contol. i am having this issue for two years and didnt changed to worse.. so thats why i think that actual gearbox michanism is still ok.
I just replaced oil,filter,removed and cleaned solenoids. i just want to know before i start looking for replacement gearbox maybe it could be some faulty solenoid or something..
Many thanks.
But problem is when acceleration foot down shifting gears from 2 to 3 happens with slip and even completely stalls for second on 2000-2500rpm. same thing if i shift to manual third gear it can stall for second then pick up rpm again usually happens on 1500-2500rpm. also i noticed on motorway when you put foot down i can feel vibration on any gear for couple seconds then it goes away but thats usually noticed when you using cruise contol. i am having this issue for two years and didnt changed to worse.. so thats why i think that actual gearbox michanism is still ok.
I just replaced oil,filter,removed and cleaned solenoids. i just want to know before i start looking for replacement gearbox maybe it could be some faulty solenoid or something..
Many thanks.