Safety First:
* Disconnect the negative battery terminal. This prevents accidental shorts and electrical shocks.
* Wear safety glasses. Broken belt pieces can fly out.
* Use jack stands. Never work under a car supported only by a jack.
Tools You'll Need:
* Socket wrench set: You'll likely need various sizes, possibly including metric.
* Wrench set: May be needed for some fasteners.
* New alternator belt: Make sure you get the correct size for your 1997 Dodge Avenger 4-cylinder. The size is usually printed on the old belt or can be found in your repair manual or online parts store.
* Gloves: To keep your hands clean.
* Flashlight: To better see in tight spaces.
* Jack and jack stands: For safety.
Steps:
1. Locate the alternator and belt: The alternator is usually near the front of the engine on the passenger side. The belt will be wrapped around the alternator, crankshaft pulley, and possibly other pulleys (power steering, A/C compressor).
2. Identify belt tensioner (or routing): Most 1997 Dodge Avengers have a belt tensioner pulley. This pulley is used to release tension on the belt, making it easier to remove and install. Locate this pulley; it might have a bolt or lever that needs to be loosened or moved to release tension. Some models might use an automatic tensioner which adjusts itself.
3. Release belt tension: Using the appropriate wrench or socket, carefully loosen the tensioner's bolt or lever. This will allow you to slacken the belt so it can be removed from the pulleys.
4. Remove the old belt: Once tension is released, carefully pry the belt off each pulley. Work systematically around the engine to avoid accidentally breaking the belt further.
5. Inspect pulleys and belt routing: Carefully examine the pulleys for any damage, wear, or cracks. Note the exact routing of the belt on the pulleys. You will need to reinstall the belt following the same path. A diagram in your repair manual or a picture you take before removing the belt will help.
6. Install the new belt: Carefully route the new belt onto each pulley, following the same path as the old belt. Ensure it sits correctly in all the grooves of each pulley.
7. Tighten the belt tensioner: Once the belt is properly routed, tighten the belt tensioner bolt or lever. The belt should now be taut but not overly tight. You should be able to slightly twist the belt with your fingers but there shouldn't be too much slack. Consult your manual for recommended belt tension.
8. Reconnect the battery: Carefully reconnect the negative battery terminal.
9. Start the engine: Start the engine and listen for any unusual noises from the belt area. If you hear squealing or other abnormal sounds, check the belt tension and routing again.
Important Considerations:
* Belt Tension: Incorrect tension is a common problem. Too loose, and the belt will slip and squeal. Too tight, and it can cause premature wear on the belt and pulleys.
* Difficulty: If you're uncomfortable working under the hood, it's best to have a qualified mechanic perform this repair. This is a fairly straightforward repair, but access can be tight in some vehicles, and improper installation could lead to damage.
* Repair Manual: A repair manual specific to your 1997 Dodge Avenger 4-cylinder will provide the most accurate instructions and diagrams for your vehicle.
This guide provides general information. Always prioritize safety and consult your vehicle's service manual for specific details and torque specifications relevant to your car's model and year. Remember that working on a car involves risks. If you're not comfortable performing this repair, it's best to seek professional help.
