I wouldn't think you could flush a heater core. you can flush a radiator. Heater core you would have to replace if it is leaking or stopped up
The heater core on a Dodge Dakota is inside the HVAC housing, under the dash.
First make sure you have coolant in your radiator.Pull off heater core hoses and connect a garden house to the pipe and flush it out.Check vacuum lines by the heater core hose.
AnswerIt is located under the dash on the passenger side. You do not need to remove to flush.the heater core is under the dash in the center the a/c core is on the passenger side
A possible cause could be that you have a clogged heater core.
heater core is leaking.
This is my son-in-laws truck. I have to fix it
Drain the water from the cooling system. Remove the water hose from the heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
Either pull the hoses off of the heater core and flush the core out or pull the hoses off the block and flush the heater core through the hoses..............
You will have to disconnect the liquid line and the accumulator from the evaporator tubes in order to remove the heater core.....
Have you used any stop leak in rad.? If you have pull off heater hoses and back flush heater core. Also check hot water control valve for heater.
Lots of things.But probably a clogged heater core.
Depending on where you buy it from, between $45.00 to 250.00 dollars.........