The Mitsubishi Galant's heating and air-conditioning system requires the proper function of dozens of components. One of the main components of both systems is the blower. This is a small wheel-shaped fan that sits on an electric motor. As the motor spins the fan, air circulates through the system and pushes the hot or cool air out of the vents. When this component fails, you will feel little or no air coming from the vents. Fortunately, replacing the heater blower on the Galant is relatively easy.
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Things you need
- Socket set
Open the Galant's bonnet and remove the negative battery cable from the battery, using a ratchet and socket.
Open the passenger's door and adjust the seat in its fullback position. Look below the dashboard and remove the three screws securing the plastic cover under the dashboard, using a ratchet and socket.
Look under the dashboard and locate the blower, the black, circular component with a wiring harness plugging into it. Loosen and remove the two bolts securing the air-conditioning compressor control module, the small box bolted to the rear of the blower, if applicable. Unplug the wires from the control module by pressing the locking button on the harness and pulling the harness from the control module.
Unplug the wiring harness from the rear of the blower by pressing the locking button and pulling the harness from the blower.
Loosen and remove the bolts securing the blower to the plastic box, using a ratchet and socket. Pull the blower from the plastic box.
Place the new heater blower in the plastic case and tighten the three bolts with a ratchet and socket. Plug the wiring into the rear of the new blower and listen for the harness to click into place.
Install the air-conditioning control module on the rear of the motor and tighten its bolts with a ratchet and socket, if applicable. Plug the wiring harness into the air-conditioning control module and listen for the click indicating that the harness is locked into place.
Install the under-dash plastic cover and tighten its screws with a ratchet and socket.
Reconnect the negative battery cable to the battery and tighten it with a ratchet and socket. Close the Galant's bonnet.
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