1. Identify the Problem:
* Window won't go up or down at all: This points to a problem with the motor, regulator, switch, or wiring.
* Window goes down but not up (or vice-versa): This often indicates a problem with the motor, regulator, or a broken cable.
* Window moves intermittently or makes strange noises: This suggests a problem with the motor, regulator, or possibly worn or binding parts.
* Window works sometimes, but not others: This usually means a problem with the switch, wiring, or a connection.
2. Troubleshooting Steps:
* Check the Fuse: Start by checking the fuse in the fuse box (usually under the hood or in the passenger compartment). Consult your owner's manual for the correct fuse for the power windows.
* Test the Switch: Try the other window switches. If they work, the problem is likely with the switch for the malfunctioning window. If other windows are also affected, the problem is likely not the switch.
* Listen for Motor Noise: When you try to operate the window, listen carefully near the door. If you hear a clicking sound but no movement, the motor might be weak or faulty. A grinding sound suggests a problem with the regulator.
* Inspect the Wiring: Carefully examine the wiring harness near the door for any visible damage, loose connections, or broken wires. This is particularly important where the wires enter the door (flexing frequently causes wear).
* Manual Check (if possible): If you can access the window mechanism (often requires removing the door panel), you might be able to manually raise or lower the window to assess if the motor or regulator is the problem.
3. Common Repairs and Replacements:
* Window Switch: Replacing the window switch is often a relatively easy DIY repair. You can find replacement switches at auto parts stores (be sure to get the right one for your year and model).
* Window Regulator: This is a more complex repair, often requiring removing the door panel to access the mechanism. Regulators are available from auto parts stores and online retailers. It can be challenging to install, so consider professional help if you're not comfortable with car repair.
* Window Motor: Similar to the regulator, replacing the motor requires removing the door panel. It's usually easier to replace the entire regulator assembly than just the motor.
* Wiring Repair: If you find damaged wiring, you might need to splice in new wire or replace a section of the harness. This requires electrical knowledge and proper crimping/soldering techniques.
4. Getting Help:
* Consult your owner's manual: Your manual will have diagrams and instructions that may be helpful.
* Online resources: Search for "Ford Windstar power window repair" on YouTube or other forums. There are many videos and articles that may walk you through the process.
* Auto parts store: An auto parts store employee can usually help identify the correct parts and may even provide basic repair advice.
* Mechanic: If you're uncomfortable with car repair, take your Windstar to a qualified mechanic. They have the tools and experience to diagnose and fix the problem efficiently.
Important Note: Before you begin any repair work, disconnect the negative battery terminal to prevent electrical shocks. Always refer to your vehicle's repair manual for specific instructions and diagrams. Improper repairs can lead to further damage.
