Here's a general outline. Specifics may vary slightly depending on your exact model and any aftermarket modifications. Always consult a repair manual specific to your 1994 Mustang GT for precise details and torque specifications.
Tools You'll Need:
* New serpentine belt: Get the correct size and type from a reputable auto parts store. Provide them with your VIN for certainty.
* Socket wrench set (metric): You'll need various sizes, likely including 10mm, 13mm, and possibly others.
* Ratchet and extensions: To reach tight spots.
* Wrench(es): Possibly for tightening bolts by hand.
* Pliers: For gripping the belt if needed.
* Jack and jack stands: Essential for safety. Never work under a car supported only by a jack.
* Wheel chocks: To secure the car.
* Gloves: To protect your hands.
* Shop rags or paper towels: For cleaning.
* Repair Manual: Highly recommended!
Procedure:
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks. Disconnect the negative battery terminal to prevent accidental shorts. Raise the front of the car securely using a jack and support it with jack stands.
2. Locate the Belt: Identify the serpentine belt; it's the long belt running around various pulleys (alternator, power steering pump, AC compressor, water pump, etc.).
3. Identify Belt Tensioner (or Tensioners): There's usually a tensioner pulley (or multiple) that allows you to release tension on the belt. Your repair manual will show you its exact location. It will likely have a bolt that needs to be loosened or a lever that needs to be moved.
4. Release Tension: Using the appropriate socket and ratchet, carefully loosen the tensioner bolt (or operate the lever). This will allow you to slip the belt off the pulleys. Be careful; the tensioner might spring back quickly when released.
5. Remove the Old Belt: Gently work the belt off the pulleys, starting with the least tight pulleys.
6. Inspect Pulleys and Belt Routing: Before installing the new belt, carefully inspect all the pulleys for damage or wear. Examine the old belt for any clues as to why it failed. Note the routing of the belt on the pulleys – this is crucial for correct installation. Your repair manual will have a diagram.
7. Install the New Belt: Carefully route the new belt onto all the pulleys in the same order as the old one. Again, your repair manual's diagram is crucial here.
8. Re-tighten Tensioner: Once the belt is on all pulleys, carefully re-tighten the tensioner bolt (or return the lever to its original position). Make sure the belt is correctly seated on all pulleys.
9. Check Belt Tension: The belt should have some deflection (give) when pressed. Your repair manual will specify the correct amount.
10. Lower the Vehicle: Carefully lower the vehicle from the jack stands.
11. Reconnect the Battery: Reconnect the negative battery terminal.
12. Test Run: Start the engine and listen for any squealing or unusual noises. Check all belt-driven accessories to make sure they are functioning properly. Visually inspect the belt again after a short run to ensure it's not slipping.
Important Considerations:
* AC Compressor: The AC compressor can be tricky; take extra care when working around it.
* Torque Specifications: Always tighten bolts to the manufacturer's specified torque values to prevent damage.
* Proper Belt Alignment: Incorrect alignment can lead to premature belt wear or breakage.
Again, I strongly advise consulting a repair manual for your specific 1994 Mustang GT 5.0L. Pictures and diagrams in a manual are invaluable. If you're not comfortable with this repair, take your car to a qualified mechanic. It's much cheaper to pay a professional than to replace a damaged engine component caused by improper belt installation.
