For the past couple of weeks I have had this plastic burning smell coming from the pass side of the motor. Ive looked over the area really well and there are not any wires touching the headers.. some are close but nothing laying on a primary at all. Does anybody else have this problem?? Is my heater box at risk?

 

CHECK the clearence between the header tube and the heater core water hoses,you could be burning the thermo silver wrap!that happened to mine