You will need to remove the dash and HVAC housing to access the heater core.
Start with disconnecting the battery.
You will then need to recover the Freon from the ac system and drain the antifreeze.
Under the hood you will need special tools to disconnect the ac lines at the firewall, remove the heater hoses, remove the engine computer and remove four nuts that hold the HVAC housing.
Inside you will have to remove the trim on the sides of the windshield, trim at the base of the doors, remove the trim below the steering column, remove the steering column, remove the trim on top of the transmission tunnel, remove the airbag computer, remove screws across the top of the dash and on the sides, unplug numerous connectors and remove the dash. You can just lay it on top of the seats.
The HVAC housing is then held in with two more nuts.
Once you get it out you then remove the screws that hold the Heater core in place. If you want to replace the evaporator coil while you are there ( a good idea ) you need to remove the screws that hold the top cover on.
You reverse all steps to install.
Do not forget to fill the antifreeze and warm the engine up before driving.
You will also need access to an ac vacuum/refill machine to recharge the ac.
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Drain the radiator. Disconnect the heater hose connections at the fire wall. loosen the dash screws and pull it out, just enough to reach the heater core. Unbolt the core and pull it out. Revers the process for installation.
Remove the water supply hoses from your 2002 Dodge Ram 1500 heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
1999 2.4
i need 2 no how
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You will need to remove the water lines from your heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
have a professional do it
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
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.
The heater hoses are 5/8 inch diameter.