Possible Causes:
1. Blown Fuse: This is the easiest and cheapest fix. Check your owner's manual for the fuse box location and diagram. The fuse for the power windows should be clearly labeled. Replace the fuse with one of the same amperage if it's blown.
2. Window Switch: The switch itself might be faulty. Try the other window switches to see if they work. If they do, and the driver's side switch is the problem, you may need to replace the whole switch assembly or possibly just the switch itself (sometimes they're modular). These are relatively inexpensive parts and easy to replace if you're comfortable with basic car repair.
3. Window Regulator: This is the mechanism that actually moves the window up and down. Over time, these can wear out, especially if the window has been forced or if there's excessive weight (like heavy tinting). A faulty regulator might manifest as the window only going up or down partially, or not moving at all. Replacing a regulator is more involved and may require some mechanical skill.
4. Window Motor: The motor drives the regulator. A failed motor will result in a completely unresponsive window. Replacing the motor is more complex than replacing the switch but usually less complex than the regulator.
5. Wiring Issues: A broken or corroded wire in the harness leading to the switch, motor, or regulator is a possibility. This is harder to diagnose and requires tracing the wiring for breaks or damage. Sometimes the wires get pinched in the door mechanism.
6. Central Locking System Problem: In some cases, problems with the central locking system can affect power windows. This is less common but possible.
7. Body Control Module (BCM): While less likely, a faulty BCM could interfere with the window operation. This is a more advanced issue and usually requires professional diagnosis.
How to Repair:
1. Start with the fuse. This takes only a few minutes and could save you a lot of time and money.
2. Test the other window switches. If they work, it points to a problem with the driver's side switch.
3. Listen for any unusual sounds when you try to operate the window. A grinding sound might indicate a failing regulator. A clicking sound might suggest a motor problem.
4. Visual Inspection: Carefully examine the window mechanism from inside the door panel (you'll need to remove the panel for this, which involves some disassembly but is doable). Look for any obvious signs of damage to the wiring, regulator, or motor.
5. Replacement Parts: If you determine the faulty part, you can purchase replacements online (e.g., eBay, Amazon) or from an auto parts store. Always ensure you are ordering the correct part for your specific year and model of Ford Explorer.
Recommendation:
If you're not comfortable with car repairs, take your Explorer to a qualified mechanic. Replacing a regulator or motor is relatively straightforward if you have the right tools and experience, but it can be challenging for a beginner. A mechanic can diagnose the problem accurately and perform the repair efficiently. Getting the wrong part can add to the cost and frustration.
