How do I Troubleshoot the Blower Fan on an 04 Ford Taurus?

The blower fan is an intrinsic piece of the 2004 Ford Taurus vehicle's heating, ventilation and air conditioning (HVAC) system. The blower fan is the HVAC element that distributes warmed or cooled air through the vehicle, keeping occupants comfortable, the driver alert and providing windshield demisting for safe visibility. Problems with the blower on an '04 Ford Taurus can include it not pushing air through fast enough, and not working at all. Problems like these can be corrected by following some troubleshooting steps.

Things You'll Need

  • Spare fuses
  • Increase the fan setting if the air throughput isn't powerful enough to demist the windows. Add a little heat to the mix. Use a lot of heat if you want to melt ice. Remove any debris at the base of the windshield if you continue to have problems. The incoming air vent is at the base of the windshield and air throughput will be affected if the vents are blocked.

  • Clear packages and coats from under the front seats if blower air doesn't reach the rear foot well of the '04 Taurus. Coats and other items can block the vents there.

  • Turn the fan to a high setting on the dashboard if the "Automatic" setting cuts the fan out too quickly for your purposes. The Automatic heater and fan settings calculate the blower speed and temperature for optimum cooling and heating. However, in the case of a particularly odorous cabin, you may want to override this setting to create more air pass-through.

  • Check the fuse block if the blower doesn't work at all. The fuse block is located in the '04 Ford Taurus' driver-side foot well. It's to the left of the steering wheel by the brake pedal. Use the index on the box to identify the location. Inspect the 40-Amp fuse in Location 8 (blower motor.) Location 8 is one of the larger fuses on the right-hand side. Replace it if the metal visible in the fuse is broken. Match it color-for-color. It will be orange or green.

  • Check the high-current fuses, too. The high-current fuses are in the engine compartment in the power distribution box. Use the index on the box to identify the location. Check Position 5 (cooling fan,) 9 (passenger side cooling fan) and 10 (driver cooling fan.) Replace them if they are broken. Match them color-for-color.