Did you lift the hood to find out where it is coming from?
Sunday, November 18th, 2012 AT 3:09 PM
My daughter had the same issue with her 07 kia spectra. After researching it on the internet, I finally found the solution. There was actually an air bubble in the coolant line. I just added more coolant in the reserve tank, and the sloshing sound completely disappeared. Hope this helps!