dear, can you explain the type of noise???? is it metallic or plastic echo type????
I had this issue with alto manual 2004.
1. The 1st noise was exhaust system. due to lose rubbers, it started rattling with car body, i went to silencer wala, and got the solution.
- 2nd sound problem was air filter compartment. 1 side of air filter remain open after closing the clips,( it was mechanic shagird mistake) it closed it my self and problem resolve.
check these two , before proceeding ahead