2001 Sante Fe Gold Edition - AWD - when we are not accelerating and we do accerate there is a slight "clunk"; can't tell if it's the tranny or rear what; can any body help out?

Also the ABS & TRC lights come on intermittently at the same time.

 

sounds like what's happening with my car - check out my post in the accent section "harsh shift normal?? - 2007 accent"