These instructions are a general guide. Always consult your owner's manual for specific details and diagrams for your vehicle. Your Tahoe's specific configuration might vary slightly.
Tools You'll Need:
* New serpentine belt: Make sure you get the correct size and type for your 1999 Tahoe. Your owner's manual or a parts store can help with this.
* Wrench(es): You'll likely need various sizes depending on the tensioner and other components.
* Socket set: Helpful for accessing hard-to-reach bolts.
* Ratchet: To use with sockets and wrenches.
* Jack and jack stands: Essential for safety. Never work under a vehicle supported only by a jack.
* Gloves: To protect your hands.
* Possibly a belt tensioner tool: Some tensioners require a specialized tool for easier release, while others can be manually released. Check your owner's manual or search for videos online specific to your 1999 Tahoe to see which applies.
* Penetrating oil (optional): May help loosen stubborn bolts.
Procedure:
1. Safety First: Park your Tahoe on a level surface, engage the parking brake, and chock the wheels. Disconnect the negative battery terminal. Jack up the front of the vehicle and securely place it on jack stands.
2. Locate the Serpentine Belt: Identify the serpentine belt running around the various pulleys (alternator, power steering pump, water pump, etc.).
3. Locate the Belt Tensioner: Find the belt tensioner. This is a pulley that can be moved to release tension on the belt. It often has a bolt or lever to adjust its position.
4. Release Tension: This is the trickiest part. Using the appropriate wrench or tool (often a long handled wrench), carefully loosen the tensioner. You may need to use significant force, and sometimes you need to turn the tensioner in the appropriate direction to release the belt tension. *Consult your owner's manual or look up a video specific to your vehicle to ensure you're moving the tensioner in the correct direction.*
5. Remove the Old Belt: Once tension is released, carefully work the belt off of the pulleys.
6. Install the New Belt: Route the new belt around the pulleys in the same path as the old belt. Make sure it sits correctly in all the grooves.
7. Release Tensioner: If you loosened the tensioner to install the new belt, release the wrench or tool holding it and allow the tensioner to return to its normal position. The belt will then be under the correct tension.
8. Check Belt Routing: Double-check that the new belt is correctly routed around all pulleys.
9. Lower Vehicle: Carefully lower the vehicle back to the ground.
10. Reconnect Battery: Reconnect the negative battery terminal.
11. Start Engine: Start the engine and check for any squealing or unusual noises from the belt. If you hear any problems, turn the engine off immediately and re-check your work.
Important Considerations:
* Diagram: Find a diagram of your serpentine belt routing online. There are many resources available for 1999 Chevy Tahoes. This is crucial to ensure correct installation.
* Markings: Some belts have markings to indicate which side should face up. Pay attention to these if present.
* Tension: The belt should be snug but not overly tight. Over-tightening can damage the belt and pulleys.
This is a simplified explanation. The specifics will vary depending on your exact Tahoe model. Again, consult your owner's manual and consider watching videos specific to your 1999 Chevy Tahoe before attempting this repair. If you are not comfortable with these steps, seek professional help. A wrongly installed belt can cause serious engine damage.
