Here's a general outline. Specific steps may vary, and you should consult a repair manual specific to your 1996 Chevy Blazer for detailed instructions and diagrams. A Haynes or Chilton manual is highly recommended.
1. Preparation:
* Gather Tools: You'll need screwdrivers (Phillips and flathead), possibly sockets and wrenches, a putty knife or trim removal tool, and possibly a panel removal tool.
* Disconnect the Negative Battery Cable: This is crucial to prevent electrical shock and short circuits.
2. Accessing the Blower Motor:
* Remove the glove box: This usually involves removing a few screws or clips. Consult your repair manual for the exact location and type of fasteners.
* Remove the passenger side dash panel: This is often the most time-consuming step. There may be several screws, clips, and possibly even some electrical connectors to disconnect. Take your time and carefully pry away the panels; use the trim removal tool to avoid damaging the plastic. Again, your repair manual will show the exact location of these fasteners and how the panels are interconnected. Take photos as you go to aid reassembly.
* Locate the Blower Motor: Once the dash panel is removed, you should see the blower motor housing. It's usually located behind the glove box area, towards the center of the dashboard.
3. Replacing the Blower Motor:
* Disconnect Electrical Connectors: There will be at least one electrical connector attached to the blower motor. Carefully disconnect it.
* Remove the Blower Motor: The blower motor is usually held in place by screws or retaining clips. Remove these fasteners. Sometimes you may need to remove a few more panels to get better access.
* Install the New Blower Motor: Carefully install the new blower motor, ensuring it's properly seated and all fasteners are tightened.
* Reconnect Electrical Connectors: Securely reconnect the electrical connector to the new blower motor.
4. Reassembly:
* Reinstall the Passenger Side Dash Panel: Carefully reverse the steps you took to remove the panels, making sure everything is properly seated.
* Reinstall the Glove Box: Securely reattach the glove box.
* Reconnect the Negative Battery Cable: Reconnect the battery cable.
5. Testing:
* Turn on the Ignition: Turn on your vehicle's ignition and test the blower motor at different speeds.
Important Considerations:
* Repair Manual: Using a repair manual specific to your 1996 Chevy Blazer is highly recommended. Generic instructions may not be accurate.
* Patience: This is not a quick job. Take your time and be methodical to avoid damaging parts.
* Photography: Take photos at each step of disassembly to aid in reassembly.
* Safety: Always disconnect the negative battery cable before starting any electrical work. Be mindful of sharp edges and any potential hazards.
If you're not comfortable performing this repair yourself, it's best to take your vehicle to a qualified mechanic. Incorrect installation can lead to further damage or safety issues.
