How does a 1997 Ford F-150 heater core work?
How does a 1997 Ford F-150 heater core work? by Brett Johnson. The heater core in your 1997 Ford F-150 is a radiator-style unit used to heat the interior of your truck. Coolant flows from the lower radiator hose to and through the heater core. This fluid heats the unit, and a blower fan forces warm air through the core and into the cabin when the heater is turned on. How much does it cost to replace a Ford F-150 heater? The average cost for a Ford F-150 heater core replacement is between $736 and $902. Labor costs are estimated...