1. Diagnose the Problem:
* Completely dead: The window doesn't move at all.
* Intermittent operation: Works sometimes, sometimes not.
* Slow operation: Window moves very slowly.
* Window only goes down/up: One direction works, the other doesn't.
* Noise: Grinding, clicking, or humming sounds.
2. Common Causes and Solutions:
* Blown Fuse: Check your owner's manual for the fuse location and amperage for the power windows. Replace a blown fuse with one of the same rating. If the fuse blows immediately after replacement, you have a short circuit – see below.
* Switch Problem: The window switch itself might be faulty. Try the other window switches to see if the problem follows the switch or the window. If the problem follows the switch, replacement is necessary. These can be relatively inexpensive and easy to replace, but you'll need to remove the door panel.
* Window Motor Failure: The motor that drives the window mechanism could be burned out or worn. This often manifests as slow operation, no operation, or grinding noises. Replacement of the motor is usually required. This is more involved and may require some mechanical aptitude.
* Window Regulator Problems: The regulator is the mechanism that moves the window up and down. Common problems include broken cables, worn gears, or seized components. This often results in the window only moving partially or not at all. Replacement of the entire regulator is usually the solution and is a more involved repair.
* Wiring Issues: Damaged, corroded, or disconnected wiring can interrupt the power flow to the motor and regulator. Inspect the wiring harness within the door, looking for breaks, frayed wires, or corrosion. Repair or replace as needed.
* Short Circuit: If you replace a fuse and it blows immediately, you have a short circuit somewhere in the system. This requires careful inspection of the wiring and components to locate the short.
3. Repair Process (General Steps):
1. Disconnect the Battery: Always disconnect the negative battery terminal before working on any electrical components.
2. Remove the Door Panel: This is usually done by removing screws and carefully prying off the panel with plastic trim tools to avoid damaging the clips. Consult a repair manual or online video for your specific model.
3. Inspect Components: Once the door panel is removed, you can visually inspect the motor, regulator, wiring, and switch connections. Look for any obvious damage, corrosion, or loose connections.
4. Test Components: If you have a multimeter, you can test the voltage at the motor and switch to confirm whether they are receiving power.
5. Replacement: If components are faulty, replacement is necessary. You can find replacement parts at auto parts stores, junkyards, or online retailers. Be sure to purchase parts specifically for your 1995 Ford Mustang.
6. Reassembly: Once repairs are complete, reassemble the door panel and reconnect the battery.
Important Notes:
* Repair Manuals: A repair manual specific to your 1995 Ford Mustang is highly recommended. It will provide detailed diagrams, instructions, and torque specifications to ensure proper repair. Haynes and Chilton manuals are readily available.
* Online Resources: YouTube videos demonstrating power window repair on similar vehicles can be very helpful. Search for "1995 Ford Mustang power window repair" for visual guidance.
* Safety: Be careful when working with electrical components. Always disconnect the battery before starting any work.
* Complexity: Repairing power window issues can range from simple (replacing a fuse) to complex (replacing the regulator). If you're not comfortable working on car electrical systems or mechanics, it's best to take your car to a qualified mechanic.
This information is for guidance only. Always consult a repair manual or qualified mechanic if you are unsure about any step. Improper repair could lead to further damage or injury.