Disconnect both hoses that go to the heater core from either end, (the end at the heater core or the end at the water pump, manifold, radiator, etc.) using a garden hose, preferably with a hose repair end attached to plug into the hose or a short piece of hose cut off to connect to the heater core, run water in each direction through the heater core until water runs clear, then reverse direction of flow. Repeat as many times as necessary until flow is restored and water runs clean. Be sure to also flush the rest of the cooling system or debris from it will likely just clog up the heater core again.
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..............
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
No it will not, it will just back flush the heater core and clean it out.
Remove the hoses going to the heater core. Use a regular water hose with a high pressure nozzle and flush both ways.
You can flush the block thru the line to the heater core at the firewall. This will flush the heater core also.
The heater core is on the back side of the firewall. It has 2 hoses of 1/2 inch diameter running into it. It is about in the center of the firewall. Take the 2 hoses off the firewall. Get a hose with good pressure and back flush the heater core by running the hose into the side with the long hose on it. If you are not sure which side to do then do it both ways.
When I took my car to the dealership, they said that a flush and fill would cost $79.00 plus tax and would include the heater core flush. However, when they later determined that the heater core was "restricted," they wanted to charge me double.
take the 2 hoses off to the heater core and get a hose and flush out the core through both hose fittings on the firewall.
If your asking about a heater core for a car. you pretty much have to pull the engine to get at it. as it is part of the system, it should get flushed out when you flush the system.
Your local auto parts dealer typically stocks a cooling system flush bib that will connect your garden hose to back flush the heater core. Disconnect both the heater hoses at the firewall (they are located behind the A/C condensor on the passenger side of the car) and connect the kit you picked up from your Auto Parts dealer.
Remove the hoses going to the heater core. Use a regular water hose with a high pressure nozzle and flush both ways.
It would be best to disconnect the coolant lines and flush the core after the radiator flush. This will clear any sediment from the core.