welcome to SV.. as I said earlier .there are quite a few common maladies... take a look at the harmonic balancer.. they are prone to wobbling.. rocking seat syndrome, headlight motor plastic gears fail easily, valvetrain noises, clutch rattle on manuals, steering wheel squeak, front deflectors get beat up on curbs,etc, if you need to jack or lift ,use lifting points only, E-brake retaining clips fail, cause a scrubbing sound, on autos, plastic shift cable connector at trans lever breaks .... electronics failures can drive you nutz ,and cost a fortune.. and a few more....... but, we love-em anyway..you can pull codes from DIC use this .
http://www.stengel.net/diccodes.htm .... see whats gone wrong before