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The 1978 Chevy El Camino heater core is located behind the passenger side kick plate. Remove the heater core water hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.

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9y ago
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15y ago

Drain the radiator into a container. Remove the upper radiator hose from the engine. Remove the 2 bolts in the thermostat housing. Remove the thermostat, clean both surfaces and install the new thermostat. Install the housing and 2 bolts. Reinstall the radiator hose and top off the antifreeze.

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Q: How do you change the heater core in a 1978 El Camino?
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How do you change the heater core in a 1976 El Camino?

Reverse the process to install the new heater core. You will need to remove the passenger side kick plate in your 1976 Chevrolet El Camino. Remove the heater core water supply hoses. Remove the heater core retaining bolts.


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