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Hyundai Sonata Front Suspension "Thunk"
I have a Limited- manufacture date Aug 2006 which has the "thunk" largely in the right front, but exists to a lesser degree at all three other suspension positions. So far, I have examined on my own (since Horne Hyundai in Apache Junction AZ said, "We can't hear anything.") the lower control arm strut bushing (as advised in other posts for clunking Azera's) without seeing any visible space as the writer of that post did in his. Next I plan to retorque the upper strut mounts to factory torque and will report my findings. Since the problem is easily reproducable on certain bumps on which I travel almost daily I plan to ask the dealer mechanic to ride with me while I drive over those areas instead of simply dropping the car off at the dealer as I did last time.
In the mean time I'd like to open this up for anyone else who has experienced the "thunk" in front positions (or rear positions if it also occurred in the front and both were fixed, or you have information which might relate to front suspensions) for 2007 models. As others have reported, when we have evidence that this is not an isolated incident then we have a much better chance of getting Hyundai to address it as an issue. Thanks for your input.