I am tired to find the reason why my newly purchased car is producing annoying noise in motion. Car is corolla 2001 PDM 1.6 auto with 4afe engine. Grinding ( goonj) type of sound comming specially from front wheel side when car hit the road. That particular sound is loud when speed is between 15 - 40 km/hr. Sound is low in high gears. Tried 2 different mechanics and going to workshop since 3 days but no luck. So far mechanic done the following.
1 - Checked the front wheels, mechanic says one bearing is faulty. to be on safe side i told him to change both the front one. Installed original japanes koyo..RS1300/bearing.
2 - Excel (goday) was ok. All greased and fitted back.
3 - Checked rear wheels, one hub was producing little sound, mechanic says grease sy thek ho jaey ga. So he greased it and fit it back with no noice.
4 - Rear shocks was leaked so it was replaced with kyb shocks. Ride became more stable but grinding sound is still there.
5 - ATF changed with ZIC ATF. Including opening of gear filter that was cleaned with kerosin oil and fitted back.
2 - Engine mount checked. 2 was bad. Its rubbers is replaced with new.
Now everything is fine in suspention but noise is still there. Help!!