1. Park your Silverado in a safe location and turn off the engine. Allow it to cool down if it has been running.
2. Locate the heater hoses. The heater hoses are usually located near the front of the engine, near the thermostat housing. They are typically black or gray in color and about 1-1.5 inches in diameter.
3. Prepare your tools. You will need a pair of pliers, a screwdriver, and a bucket to catch any coolant that spills.
4. Loosen the hose clamps. Use the pliers to loosen the hose clamps that are securing the heater hoses to the thermostat housing and the metal pipes.
5. Disconnect the heater hoses. Once the hose clamps are loosened, you can disconnect the heater hoses by gently pulling them off of the thermostat housing and the metal pipes. Be careful not to spill any coolant.
6. Catch the coolant. If any coolant spills, use the bucket to catch it. Coolant is toxic, so it is important to avoid contact with it.
7. Clean the hose connectors. Use a clean cloth to clean the hose connectors on the thermostat housing and the metal pipes. This will help to ensure a good seal when you reconnect the heater hoses.
8. Reconnect the heater hoses. Once the hose connectors are clean, you can reconnect the heater hoses by pushing them back onto the thermostat housing and the metal pipes. Make sure that the hose clamps are tightened securely.
9. Refill the coolant. If you spilled any coolant, you will need to refill the coolant reservoir. Consult your Silverado's owner's manual for the proper type of coolant and the correct amount to add.
10. Test the heater. Once you have reconnected the heater hoses and refilled the coolant, you can test the heater by turning on the ignition and setting the climate control to "Heat." The heater should start blowing hot air within a few minutes.
Remember to take precautions when working with coolant, as it is a toxic substance. If you have any questions or concerns about disconnecting the heater hoses on your Chevy Silverado, it is best to consult with a qualified mechanic.
