Tools You'll Need:
* New AC belt: Make sure you have the correct size. Check your owner's manual or a parts store using your VIN.
* Wrench(es): You'll likely need a wrench to loosen the tensioner pulley. The size will depend on your specific year and model. Consult your repair manual.
* Socket wrench and sockets (possibly): Helpful for accessing some tensioners.
* Gloves: To protect your hands.
* Optional: Belt tension gauge (for optimal tension)
Steps:
1. Locate the Tensioner: The AC belt tensioner is a pulley with a mechanism to create slack in the belt. This is crucial for installing or removing the belt. It's typically located near the compressor or alternator. Your repair manual will show you exactly where it is.
2. Loosen the Tensioner: Using the correct wrench, carefully loosen the tensioner pulley. This will create slack in the AC belt. Be careful; it may spring back suddenly when released, so have a firm grip on the wrench. Sometimes, a special tool is needed to apply sufficient leverage depending on the design.
3. Remove the Old Belt: Once there's enough slack, carefully remove the old AC belt. Route it off the pulleys one at a time.
4. Install the New Belt: Starting at the crankshaft pulley (the largest pulley on the engine), carefully route the new belt around each pulley, following the same path as the old belt. Make sure it sits correctly in the grooves of all the pulleys.
5. Tighten the Tensioner: Slowly tighten the tensioner pulley back to its original position, ensuring the belt is snug on all pulleys. Don't overtighten! If possible, use a belt tension gauge to ensure proper tension. Overtightening can damage the belt and pulleys, while too loose a belt will slip and not work properly.
6. Check the Belt: After tightening the tensioner, give the belt a slight twist to ensure it's seated properly and there is sufficient tension and not slipping on the pulleys.
Important Considerations:
* Repair Manual: A repair manual specific to your year and model Chevy Metro is your best resource. It will have diagrams and precise instructions for your vehicle.
* Safety First: Always disconnect the negative battery terminal before working on any part of your car's electrical system. Be cautious when working with moving parts and use proper tools.
* If Unsure: If you're not comfortable performing this repair yourself, take your car to a qualified mechanic. Incorrect installation can lead to belt slippage, premature wear, or damage to other components.
Remember, this is a general guide. Consult your vehicle's repair manual for precise instructions and diagrams specific to your Chevy Metro's year and model. The location of the tensioner and the method of releasing it can vary slightly between model years.
