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How to Change the AC Belt on a Silverado

The serpentine belt in the Chevy Silverado works hard. The serpentine belt that controls the air conditioner also controls the other accessories in your vehicle. It is called a serpentine belt because of the way it snakes around inside the engine. It should be inspected each time you change the oil. Look for cuts, cracks or glazing. If it makes noise, it should be replaced. (Reference 1)

Instructions

1

Study the belts routing. If there is no diagram under the hood that shows the routing, draw one yourself. If the new belt is placed on the wrong way it will cause problems. (Reference 2)

2

Unload the tensioner pulley using a 3/8 inch extension and ratchet. Attach the ratchet to the tensioner bolt and turn it counterclockwise.

3

Caully remove the belt by first releasing it from the tensioner, then side the tensioner back into place, and remove the belt from the other pulleys.

4

Check and clean the tensioner pulley and all the other pulleys for possible wear, dirt, old rubber or oil. Clean the grooves in the pulleys with a wire brush or brake cleaner.

5

Install the replacement belt around all the pulleys, except the tensioner pulley, erring to your notes to be certain you are installing it in the correct direction.

6

Turn the tensioner pulley to the left with the 3/8 inch ratchet, and slip the belt over it. Restore the tensioner to its original position.

7

Start the engine and run it for about two minutes to allow the belt to become completely seated.

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