How to change a heater core in a Chevy Silverado?

Disconnect the negative battery cable. Remove the I/P trim pad. Remove the center console, if equipped. . Remove the driver side knee bolster. Remove the lower I/P trim panel. . Remove the passenger side air bag module. Remove the radio. . Remove the HVAC control. Remove the accessory switch housing.

What to do if your Chevy Silverado heater gets clogged?

A fan then pushes the heat through the ventilation system and into the cabin. If a heater core gets clogged or the blend door becomes jammed, the unit will need to be removed. This task is not for the faint of heart and requires the complete removal of the dashboard, including the radio, airbags, and climate control system.

Where is the heater located in a car?

It is essentially a mini radiator hidden deep inside the engine compartment behind the dashboard, which produces heat for the climate system. The heater core has coolant lines which connect to it and produce the actual heat. A fan then pushes the heat through the ventilation system and into the cabin.

Do you have to remove AC accumulator in Chevy Silverado?

Big job, requires removal of the complete dash and ac accumulator, I wish you luck. Instructions below. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component.

How to replace the heater core in a Chevy Silverado?

Reconnect any electrical connectors you may have disconnected as well as the mode control cable and temperature control cable and the heater hoses. Replace the instrument panel carrier, then reconnect the negative battery cable. Refill the engine cooling system and bleed air from it as necessary.

How do you change the HVAC in a Chevy Silverado?

If replacing the HVAC module, remove the right side of the carrier from the vehicle to gain access to the module. Remove the I/P center support bracket bezel (1).

What should I do if I need to replace a heater core?

Caution:Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal.