I recently got a new timing belt + bearing set installed in my civic 04 VTI, this i did from a pit shop, now the issue is when they installed the new belt and bearing then on pressing the accelerator slowly and then leaving when the race comes down, some slight "ghooon" like sound comes from the area around timing belt.
When i complained about the issue, they inspected different stuff like bearing, water pump etc, those were fine, then for experiment they put back my old belt, then the sound DISAPPEARED. Then assuming the new belt was bad, they installed another new one, and insterstingly the sound came back :(, now the meachincs told me that the sound will disappear in some days (it' been 5-6 days). Any advise?