However, the general process is as follows:
1. Identify Your Mustang and Engine: The year, engine size (e.g., 2.3L EcoBoost, 5.0L Coyote), and any specific options (supercharger, etc.) dramatically affect the belt routing.
2. Consult a Repair Manual: This is the most crucial step. Your best resource is a repair manual specific to your year and model Mustang. This manual will have diagrams showing the correct routing of the belt around the various pulleys (crankshaft, alternator, power steering pump, air conditioning compressor, etc.). You can find these manuals online (e.g., Haynes, Chilton) or at auto parts stores.
3. Loosen Tensioner(s): Most serpentine belt systems use a tensioner pulley (sometimes more than one) to keep the belt taut. You'll need to loosen this tensioner to allow you to slip the belt onto the pulleys. The method for loosening the tensioner varies depending on the system – it might involve a wrench, a special tool, or even a ratchet. Your repair manual will show you how.
4. Route the Belt: Carefully follow the diagram in your repair manual to route the belt over each pulley in the correct order. It's easy to get this wrong, leading to belt slippage or damage. Start with the crankshaft pulley and work your way around, ensuring the belt sits properly in the grooves of each pulley.
5. Tighten Tensioner(s): Once the belt is correctly routed, carefully tighten the tensioner(s) to put the appropriate tension on the belt. You'll likely hear a slight squeal as the tension is applied; this is normal. If it's excessively loud or continues after tension is applied, you likely have the belt routed incorrectly or are using the wrong belt.
6. Check Tension: After tightening, check the belt tension. You should be able to deflect the belt about ½ inch by pressing on it midway between two pulleys. If it's too loose or too tight, adjust the tensioner accordingly.
7. Start the Engine: Start the engine and listen for any squealing or unusual noises. If you hear anything unusual, immediately turn the engine off and check the belt routing and tension.
Important Notes:
* Safety First: Disconnect the negative battery terminal before starting any work on your car's engine.
* Tools: You'll need the appropriate wrenches or tools to loosen the tensioner(s).
* Correct Belt: Ensure you have the correct serpentine belt for your specific Mustang. Using the wrong belt can cause damage.
* Professional Help: If you're uncomfortable working on your car, take it to a qualified mechanic. It's better to pay for professional help than risk damaging your engine.
Without knowing your specific Mustang's year and engine, it's impossible to give you precise instructions. Always consult your repair manual. It is your most valuable resource for this task.
