I have recently bought Yaris Zinc 1.3 2007 MMT automatic transmisson and found a problem that bothers me a lot.
When I start moving forward or backward (especially slowly) car jerks. When I add more gas and accelerate sharply jerking is gone, it is also fine when the engine is hot.
Now, I have read quite lot about jerking and mmt but I could not find some answers so I want to ask :
1. Would initialisation of ECU and clutch help?
2. Is this really transmission problem?
3. Would tranny oil change help?
4. In case of changing transmission do I need to buy whole new transmission or just some part (which is gone) and what are the aprox. prices of it ? (I am starting at Uni shortly and thus have very limited budget.)
Thank you all for your help and advices.