1. Preparation:
* Disconnect the battery's negative terminal. This is crucial for safety to prevent accidental shorts.
* Gather tools: You'll likely need a screwdriver (probably Phillips), possibly a socket wrench, and possibly some trim removal tools (plastic pry tools are ideal to avoid scratching). A flashlight will be helpful.
2. Location Possibilities:
The blower motor resistor is most likely located behind the dashboard, either under the glove box or behind a panel on the passenger side near the floor. There's a small chance it might be behind the radio, but that's less common.
3. Accessing the Resistor (General Steps):
* Glove Box Method (Most Likely): Remove the glove box. This usually involves removing screws on the sides and possibly at the top. Once the glove box is out, you should have a better view of the area behind it. The resistor might be visible or you may need to remove some additional panels.
* Passenger Side Panel Method: Locate a panel on the passenger side of the dashboard near the floor. This panel might be covered by a kick panel or simply a trim piece. Carefully pry it loose with plastic trim tools. You'll likely find screws or clips holding it in place. The resistor may be located behind this panel.
* Careful Inspection: Once you've removed any panels, carefully examine the area for a small rectangular or square component with several wires connected to it. This is likely your blower motor resistor.
4. Removal:
Once you locate it, disconnect the electrical connectors and remove any screws or fasteners holding it in place.
5. Replacement:
Install the new resistor, carefully reconnecting the wires. Reassemble the panels and glove box in reverse order of disassembly. Reconnect the negative battery terminal.
Important Notes:
* Consult a Repair Manual: A repair manual specific to your '87 Chrysler Fifth Avenue will provide the most accurate and detailed instructions. These manuals often include diagrams showing the resistor's location and removal procedure. Online resources like Haynes or Chilton might have manuals available.
* Take Pictures: As you disassemble the dashboard, take pictures to help you remember how everything goes back together.
* Be Gentle: Avoid using excessive force when removing panels. Plastic trim pieces can easily break.
* If Unsure, Seek Professional Help: If you're uncomfortable working on your car's electrical system, it's best to take it to a qualified mechanic.
Without a specific repair manual for your vehicle, these instructions are generalized. Remember safety first, and always disconnect the battery negative terminal before working on the electrical system.
