steering problem

[1328]

hi,my car is ee90 wit svt.my prob is:
1)when i driving on unflat road n pass thru the road bump,my steering feel like unstable,its like shaking left n right a bit.n when my front wheel pass thru the road bump,its wil turn to right a bit.
2)i feel my steering is heavy(juz a bit compare to my fren's car) during cornering even normal or hard cornering.sumtime feel it wil turn back a bit.
Thanks

 

[g4i8y0t]

Hmm.. Looks like power steering problem to me. You should ask a mechanic to check it.

 

[1328]

i do check it at workshop b4,sum say is rim,sum say is tyre n steering rack bush n etc.n i do change d item above,but prob din solve.so i try to ask member here,maybe they face d similar prob like me.
Bro,hw ur car nw?prob solved?
Thanks