I have an issue just surface in my Protege5. Noticed at about 40mph upwards I have a tackle knock felt through the steering wheel and a sort of warble sound occuring at the same frequency. Obviously speed related and maybe outboard of the transmission - when I disengage the tranny while rolling, it is still there. Warped rotors? Bent rim? Yellow crested warbler in the grill? Nothing apparent. Any ideas/suggestions of where to look for the likely culprit? Thanks.
Does it vary when you veer left and right a little? Make sure you check for ANY play in the tie rod ends by jacking it up and trying to force the tire/wheel left and right. Any play - you need a new inner or outer end.