Add hot water into the same temporary hose to completely fill the heater core.
Chemical to clean out heater core.
Pull them back a few inches so that we can remove the hoses.
Slowly twist the hose back and forth while pulling to slide it off the outlet.
My point was that there could be blockage in another part of the cooling system other than the heater core that is causing your problem.
You may have a clogged heater core so do a heater core flush and unclog it.
Cant get heat so was i was going to do a direct heater core backflush but cant get to the heater hoses to get them off and they make these clamps so hard to figure out sometimes so you cant do your own work.
As you do so the coolant water and grime within the system will be expelled through the inlet hose.
In order to clean the blockage out of the heater core you will need to force either air or water through the system.
If the core was clogged expect the rest of the system to have plenty of buildup and it can simply re deposit in the core if it all wasn t cleaned out.
Allow to sit for 1 hour.
You may want to run a chemical flush in the system first to loosen the gunk up and then use hose pressure to flush out the radiator engine and heater core thoroughly.
Part 2 of 3.
Use pliers and pull the metal hose clamps back.
Remove heater core outlet hose.
If i do a radiator flush as you suggested will that clean my heater core at all and how well in comparison to a direct back flush.
Take care not to damage.
Besides if you follow the directions the chemical flush should be safe for the whole cooling system.
Install temporary hoses onto the heater core nipples.
Is your heat not working or is your heater not hot.
Be sure the hose is positioned so anything that comes out of it will pour into the container.
Learn how to flush your heate.
If the heater core is small or the core is.
I blasted air through each hose with the air compressor shooting it out of the top of the radiator filled with water and blasted it again over and over until it came out clear.
