A few weeks ago I had an intermittent clunking noise in the right rear suspension, seemingly worse when turning left over bumps or jerking the car left hard (Kia Optima 2012). It almost sounds like a popping sound. I've brought it in and had the shocks and shock mounts replaced so far but the noise has returned again. Almost every time I set an appointment the noise disappears around the day I am scheduled so the shop has to be beginning to think I'm hearing things. He said he checked the sway bar links and pulled on the tire and everything feels tight. What do you recommend next?