Step 1: Remove the Glove Box. Step 2: Access the Evaporator Coil. Step 3: Spray the Cleaner on the Evaporator Coil Through the Access Point. Step 4: Rinse the Evaporator Coil. Step 5: Dry the Evaporator Coil. Step 6: Put Back the Blower Fan or Resistor Block or Seal the Hole You Drilled. Step 7: Put Back the Glove Box.