I went to 5s dealer and as usual one of the mechanic there took me out to another mechanic who said the tuk tuk noise which i hear when i drive straight is of the axle and i need to open and see how bad the condition is of axle, when i agreed he opened the left side axle of my car and told me that someone repaired the axle previously and it was welded and not been repaired properly so he repaired it and fixed it after some welding, grinding it. After that the tuk tuk noise is gone till now i have not driven much after that, let see if its good to go in the long run
while he told me that genuine axle is approx 5500 new, if the axle make noise then i have decided to replace it with a new one.
For the low pick up on CNG, the mechanic told me that you needed tuning and for that come to me after the eid, he said he will do all the necessary tuning work and set the tapid settings after that pick will be improved. Honestly i am thinking to get my work done by some local mechanic as 5s dealer mechanic are not doing there work on suzuki service shop and sending me to their mechanics who are either friends with them.