Tools You'll Likely Need:
* Socket set (metric)
* Ratchet and extensions
* Screwdrivers (Phillips and flathead)
* Pliers
* Trim removal tools (plastic pry tools are ideal to avoid scratching)
* Possibly a small torx bit set
* Shop rags
* New blower motor (ensure you get the correct one for your year, make, and model)
General Steps (This is not exhaustive and may vary):
1. Disconnect the Battery: This is crucial to prevent electrical shorts. Disconnect the negative (-) terminal first.
2. Access the Blower Motor: This is the most variable step. Access typically involves:
* Removing the glove box: This is often necessary to gain better access to the blower motor housing. There are usually screws and possibly clips holding it in place. Be gentle to avoid breaking any plastic clips.
* Removing parts of the dashboard: Depending on your Blazer's configuration, you may need to remove some parts of the dashboard or center console to reach the blower motor. This often involves removing trim pieces and potentially some screws and fasteners. Again, use trim tools to avoid damage.
* Identifying the blower motor housing: Once you have access, locate the blower motor housing. It’s usually a metal or plastic enclosure containing the blower motor.
3. Disconnect Electrical Connections: Carefully disconnect the electrical connector from the blower motor. Take pictures or make notes to ensure you reconnect it correctly.
4. Remove the Blower Motor: This usually involves removing several screws or bolts securing the blower motor to its housing. You might need to maneuver the motor past some obstacles. The motor itself may be held in place by a cage or squirrel cage.
5. Install the New Blower Motor: Install the new blower motor, ensuring it's properly seated and the connections are secure. Reverse the steps you took to remove the old motor.
6. Reconnect Electrical Connections: Carefully reconnect the electrical connector to the new blower motor.
7. Reassemble Everything: Put everything back together in the reverse order you took it apart. Make sure everything is securely fastened.
8. Reconnect the Battery: Reconnect the positive (+) battery terminal.
9. Test the Blower Motor: Turn on your vehicle's heating and air conditioning system and test the blower motor at all speeds.
Important Considerations:
* Consult a Repair Manual: This is the most critical step. A repair manual specific to your 2001 Chevy Blazer will provide detailed, illustrated instructions and torque specifications for all fasteners. Improper torque can damage parts.
* Take Pictures: Take pictures as you disassemble the system. This will be invaluable during reassembly.
* Be Patient and Methodical: This is not a quick job. Take your time, work carefully, and be patient. Rushing can lead to damage or frustration.
* If Unsure, Seek Professional Help: If you're uncomfortable with any aspect of this repair, it's always best to seek help from a qualified mechanic. The cost of professional repair is often less than the cost of replacing damaged parts due to improper repair.
This information is for guidance only. Always refer to a repair manual for your specific vehicle before attempting any repairs. Improper repair can lead to damage to your vehicle or personal injury.
