Here's a general guide. This is NOT a substitute for a repair manual specific to your 1995 Jeep Wrangler. Consult a repair manual for precise diagrams, torque specifications, and potentially different steps depending on your specific engine (e.g., 2.5L or 4.0L – though you specified 4-cylinder, it's crucial to know the exact engine).
Tools You'll Likely Need:
* New serpentine belt: Get the correct size and type. Your local auto parts store can help you identify the correct belt using your Jeep's VIN or engine details.
* Wrench(es): Various sizes, likely including a 13mm and possibly others depending on your specific tensioner.
* Socket wrench and sockets: To match the wrench sizes.
* Ratchet: To make wrench use easier.
* Pliers (possibly): For accessing stubborn belt routing points.
* Jack and jack stands: To safely lift the Jeep. Never work under a vehicle supported only by a jack.
* Wheel chocks: For added safety.
* Gloves: Protect your hands.
* Repair manual: Essential for specific details and torque specs.
General Steps (Adapt to your specific model):
1. Preparation:
* Park on a level surface, engage the parking brake, and chock the wheels.
* Disconnect the negative battery cable.
* Locate the serpentine belt. It runs around various pulleys (alternator, power steering pump, AC compressor, etc.).
2. Accessing the Belt Tensioner:
* You'll need to loosen the belt tensioner to remove the old belt. This is usually done by using a wrench or socket on a bolt (often a 13mm). The tensioner might have a pivoting arm or a different mechanism – your repair manual will show you exactly how to do this. Be careful; the tensioner will spring back forcefully when released.
3. Removing the Old Belt:
* Once the tension is released, carefully slip the old belt off the pulleys. You might need to use pliers to help maneuver it off the tightest pulley(s).
4. Installing the New Belt:
* Route the new belt around the pulleys in the same order as the old one. Use the diagram in your repair manual to ensure you get it right. This is crucial; a misplaced belt can damage your engine.
* It's usually easiest to start with the tightest pulley and work your way around.
5. Releasing Tensioner and Checking Tension:
* Gradually release the tensioner to allow the new belt to settle onto all the pulleys.
* Double-check that the belt is seated correctly on all pulleys.
* Check for proper belt tension. You should be able to slightly twist it by hand – too tight or too loose is bad. The repair manual will explain how to check tension (sometimes a method for checking deflection is given).
6. Reassembly:
* Tighten the belt tensioner bolt to the specified torque in your repair manual.
* Reconnect the negative battery cable.
7. Test:
* Start the engine and listen for any squealing or unusual noises. Check the belt for proper rotation and function.
Important Considerations:
* Tensioner: Some tensioners require a special tool; others use a wrench on a bolt. Your repair manual is crucial here.
* Belt Routing: Getting the belt routing wrong is a common mistake. Carefully follow the diagram in your repair manual.
* Torque Specifications: Always tighten bolts to the manufacturer's specified torque. Over-tightening can damage parts; under-tightening can cause problems.
Disclaimer: This is a general guide. Working on your car involves risks. If you are not comfortable performing this repair, take your Jeep to a qualified mechanic. Incorrectly installing a serpentine belt can lead to serious engine damage. Always refer to your specific vehicle's repair manual for accurate and safe procedures.