Tools You'll Likely Need:
* Socket set (various sizes, including metric)
* Ratchet and extensions
* Screwdrivers (Phillips and flathead)
* Pliers (needle-nose are helpful)
* Possibly a small pry bar or trim removal tool
* New blower motor (ensure it's the correct part for your vehicle)
* Shop rags or towels
Steps:
1. Disconnect the Battery: This is crucial for safety to prevent electrical shocks. Disconnect the negative (-) terminal first.
2. Access the Blower Motor: This is usually located behind the glove box or under the dashboard on the passenger side. You'll likely need to:
* Remove the glove box: This usually involves removing screws and possibly some clips holding it in place. Refer to your repair manual for exact locations.
* Remove the passenger-side lower dash panel: This often involves removing screws and possibly some plastic retaining clips. Be gentle to avoid breaking the plastic.
3. Locate the Blower Motor and Disconnect Electrical Connections: Once you have access, you'll see the blower motor. There will be at least one electrical connector plugged into it. Carefully unplug it. Take pictures or make notes if necessary to remember how things go back together.
4. Remove the Blower Motor Housing: The blower motor is typically held in place by screws or bolts. Remove these fasteners. You might need to maneuver the housing carefully to clear obstructions.
5. Remove the Blower Motor from the Housing: This can sometimes be tricky. The motor might be secured by screws or simply held in place by friction. Gently work it free.
6. Install the New Blower Motor: Carefully install the new blower motor into the housing, making sure it's properly seated. Secure it with the fasteners.
7. Reinstall the Blower Motor Housing: Carefully put the blower motor housing back in place and secure it with the fasteners.
8. Reconnect Electrical Connections: Carefully plug the electrical connector back onto the new blower motor.
9. Reinstall Dash Panels and Glove Box: Carefully reinstall the passenger-side lower dash panel and the glove box, ensuring all fasteners are securely tightened.
10. Reconnect the Battery: Reconnect the battery's negative (-) terminal.
11. Test the Blower Motor: Turn on your ignition and test the blower motor at various speeds to ensure it's working correctly.
Important Considerations:
* Repair Manual: A repair manual specific to your 1992 Chevy S-10 Blazer is highly recommended. It will provide detailed diagrams and instructions, making the process much easier and less frustrating.
* Patience: This job requires patience and careful attention to detail. Take your time and avoid rushing.
* Photos/Notes: Take pictures or make notes as you disassemble the components. This will be invaluable when reinstalling everything.
* Clips and Fasteners: Be cautious when removing plastic clips and fasteners, as they can easily break.
* Electrical Safety: Always disconnect the battery before working on any electrical components.
If you're not comfortable working on your vehicle yourself, it's best to take it to a qualified mechanic. Improper repair can lead to further damage or even safety hazards.
