csanisha

Hi My car is TOYOTA IST 1.3CC VVTI. (NCP60) AUTOMATIC. 150000km done it has small rattling/ ignition sound at low rpms. It is not regularly happend.but I notice the sounds when Gear shifts with low rpms. When at highway speed of100kmph , it comes. Same stage if Over Drive off. No sound noticed. And also i have noticed AC cluctch gives some horrible sound. I have asked mechanic to check and he has tied up the belts. Now less Ac clutch sound comes different speeds. (Not continuous) Is the Ac clutch sound is the reason for ignition sound or all these are two related things. Any good place you all can recommend? I have checked vvti solanide and Engine sludge. ALL are clear. Thanks