weird noise and sputter with sr

[starkos14]

took my car to import intelligence for a gasket change.... i also had my power steering belt tightened because it was squeeling a little during cold starts... :note: when my turbo gasket was changed my coolant system was drained and refilled. so when i start out the car i feel resistance on the car... the turbo is spooling smooth but i feel a slight rumble and lack of smoothness in the handling. the car has the slight ability to run smooth but its getting annoying,, i think its the power steering causing this sputter noise and almost sounds like a knocking at times. when i was driving around a slight curve to the left, the car was perfectly smooth. i tested this numerous times and whe i turn the wheel left, the engine feels smooth as butter any ideas? i tried loosening the belt and that lessened the risistance a little but its still there. i dont want to loosen much more for fear of having the belt too loose... ill try anything though

any ideas?thanks