1. Diagnosis: The First Step
Before diving into repairs, determine the nature of the problem:
* Does the window motor work at all? No sound when the switch is activated? This suggests a problem with the motor, wiring, or fuse.
* Does the window move, but only intermittently or slowly? This could indicate a worn motor, faulty regulator, or binding mechanism.
* Does the window move in one direction but not the other? This often points to a problem with the regulator or its associated linkage.
* Does the window move, but the switch is unresponsive? This suggests a problem with the switch itself or the wiring to the switch.
2. Common Problems and Solutions:
* Window Motor Failure: This is often the culprit. You'll need to access the motor (usually located in the door panel). This involves removing the door panel carefully to avoid damaging the clips. Once accessed, you can test the motor with a multimeter to see if it's receiving power and if it's functioning. Replacement motors are available online or at auto parts stores; expect this to be a significant repair.
* Window Regulator Failure: The regulator is the mechanism that moves the window up and down. Wear and tear, especially with age, can cause it to fail. Access is again via the door panel. Inspect for broken cables, bent arms, or stripped gears. Replacement regulators are also available, but this is often a more involved repair than replacing just the motor.
* Wiring Issues: Check the wiring harness for broken wires, loose connections, or corrosion, particularly in the areas where the wiring flexes as the window moves. Repair or replace any damaged wiring. A multimeter can help identify broken circuits.
* Fuse: Check the car's fuse box for a blown fuse related to the power windows. This is a quick and easy check before tackling more complex repairs.
* Window Switch Failure: If the switch itself is faulty, it will need to be replaced. This is a relatively simple repair, but may require some careful disassembly of the switch assembly.
* Binding Mechanism: Sometimes, the window gets stuck due to debris or wear in the window tracks or guides. Clean the tracks thoroughly and lubricate them with silicone-based lubricant.
3. Repair Steps (General):
1. Disconnect the Battery: This is crucial to prevent accidental shocks and short circuits.
2. Remove the Door Panel: This requires carefully removing screws, clips, and potentially disconnecting some components like the door handle or speaker. Consult a repair manual (Haynes or Chilton) for your specific car model for detailed instructions; improper removal can damage the panel.
3. Inspect Components: Carefully examine the motor, regulator, wiring, and window tracks for any visible damage.
4. Test Components: Use a multimeter to test the motor and wiring for continuity and voltage.
5. Repair or Replace: Repair damaged wiring, replace faulty components (motor, regulator, switch), and clean/lubricate the tracks as needed.
6. Reassemble: Put everything back together, ensuring all connections are secure.
7. Reconnect the Battery: Test the window operation.
4. Important Considerations:
* Repair Manual: A repair manual specific to your 1988 Chrysler LeBaron convertible is highly recommended. It will provide detailed diagrams and instructions for removing the door panel and accessing the window mechanism.
* Safety: Be careful when working with electrical components.
* Parts: Source replacement parts from reputable auto parts stores or online retailers. Ensure you get the correct parts for your specific vehicle year and model.
This is a complex repair. If you're not comfortable working with car mechanics, it's best to take your vehicle to a qualified mechanic. The cost of professional repair might outweigh the cost of parts and your time if you lack the experience.
