Dash ground is loose.
Main ground for dash is loose.
Replace the fan blower resister
the blower switch itself is located in the instrument panel. it adjust the speed of the blower. the blower resistor, if that is what you are looking for,is located beside the blower motor under the pass. side of the dash
in side the fan blower under glove department on passenger
The Blower motor should be under the dash on the passenger side. It is easily accessible and can be removed by taking out the three screws and wire harness.
Please email me a photo of where the blower motor resistor is and how to change it. Thanks, Michael. By the way I want it for a 2000 Sunfire not a Grand Am.
Your wiring is probably messed up, happened to me. Locate the wires from the blower to the controls check them and replace as needed. Assuming no wiring problem check and replace the blower motor resistor.
The Blower Motor Resistor Pack is defective. Replace it.
Most are up underneath the dashboard. Turn on the heater blower motor and listen where the sound is coming from. The heater core is behind that sound.
Try looking under the passenger side foot area. The blower motor will be there, and the blower motor resistor should be there also, will have a wiring harness and I believe 2 bolts holding it.
On my 2002 Sunfire it's under the dash on the passenger side.
heat not working