my car is FL1,2002 V6 engine，automatic gearbox，now i feel when the car change gear from 3 to 4，the bottom has a very strong shock and noise ，like some things knocking the bottom，but when i drive some distance after the car get warm，the shock change week and no noise，just like normal change gear.
:frown:I have changed the diff mounting rubber ，but the problem still there.
any one have suggest how to solve it？
Thank you for advise！