How to Replace a Horn in a Chevy Avalanche
- 1). Locate the horns. The Chevy Avalanche has high and low tone horns that are both underneath the stock air box, between the grill and inner fender. If you are only replacing one horn, make sure the new horn has the right tone.
- 2). Unplug the power connectors and remove the single mounting bolt on the horn with the socket wrench.
- 3). Take out the original horns and mount the new horns using the bolts and washers in the kit and the original mounting holes, if possible. Ensure you have one low tone and one high tone horn if your kit is not a direct factory replacement.
- 4). Mount the new horns in the original location and plug in the power connectors to each new horn if you are installing factory replacements. If the original harness is not compatible with the new horns, you will need to use your wire crimper/stripper to connect the original wiring to the new harnesses.
- 5). Test the new horns. They should make a highly discordant sound if they are both working. You can test each horn separately by plugging one in at a time.
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