The front blower on your 2003 Durango only works on high. Is there a repair for this or do you have to replace the blower?

Could be: Bad resistor Bad low speed relay Bad switch One winding in blower motor bad (has 2) Replace the blower motor resistor -$15 part - located under passenger side on heater core - takes 10 minutes DIY - or pay a mechanic $150, your choice.