Let your engine cool down, if you've been driving your Chevy Avalanche. It's wise to wait at least 30 minutes to allow the engine enough time to cool before you start your inspection.
Pop the hood of your Chevy Avalanche. Prop it open and look around for the drive belts. Most of these trucks have a single serpentine belt that runs the alternator, air conditioning compressor, power steering pump and water pump, although some of the smaller engines have a separate belt running the air conditioning compressor.
Look at the belts and search for any kind of fraying, cracking or tearing. All of these are signs that a belt needs replacing. A "healthy" belt will have a slight texture to it, like fabric. You may have to crawl beneath the truck to see the underside of the belt where it runs around the lower half of the components.
Use your hands to feel along the entire length of the belts in your Chevy Avalanche. If a belt feels glossy or smooth, that means the belt is worn and needs replacing. You should be able to feel the natural texture of the belt, if it's in good shape.
Check for any oil on the belts. If you find any, you could have an oil leak, in which case, you not only need to replace the belt, but you also need to locate the leak and fix the leak.
Close the hood and consider your inspection. If you think any of the belts need replacing, you can do it yourself or take your Chevy Avalanche to a mechanic.The Chevy Avalanche appeals to families and singles as well as heavy-duty construction contractors. As part of your routine maintenance, inspect the drive belts that run your engine components. If one of these belts breaks, you could damage your engine. Chevy recommends you inspect these belts every 60,000 miles.