hi guys, our starex wasn't shifting from 1st gear anymore so we had our transmission "shift solenoid B" replaced (which was shown in the OBD scanner) and then after that it now shifts up but is jerking when shifting from netural to drive and also when upshifting as well as downshifting. Sometimes, it also gets stuck on 4th gear even on full stop it won't go back to 1st gear. Any idea where I should bring it and what to check? thanks

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there is also a delay when shifting from reverse to drive and vice versa.