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Hello, are both the inlet and outlet hoses to the heater core hot to the touch? Does the cooling fan work propperly and come on when you turn the ac on? Its not overheating now?Does the temperature control inside seem to change from ac to warm when turned to hot?
Ok and you said you flushed the heater core, with both hoses disconnected do you have flow through the core?
Ok if you have good flow thru the core with a hose do you have good flow to the heater core from the heater hoses, one will flow in and one out
Ok, is the engine running at normal operating temperature about halfway up, you said the lower radiator hose is warm is the upper radiator hose hot? What did the coolant look like in the system, you have a new water pump so you should have circulation
Only goes in one way, make sure the upper radiator hose is hot should be about 10 degrees difference between the upper and lower radiator hose being little cooler. You said both hoses to the heater core are not hot so either its a restriction going to the heater core or an air pocket in the system. If both hoses are hot I would suspect an issue with the temperature blend door motor
Filling and Bleeding without RADIATOR REFILLER
NOTICE: Engine coolant provides freeze protection, boil protection, cooling efficiency and corrosion protection to the engine and cooling components. In order to obtain these protections, the engine coolant must be maintained at the correct concentration and fluid level.
To maintain the integrity of the coolant and the cooling system:
NOTE: For vehicles equipped with an optional rear heater, RADIATOR REFILLER must be used whenever the underbody coolant lines and/or rear heater core are drained or removed.
NOTE: The addition of Cooling System Stop Leak Pellets, darkens Motorcraft Premium Gold Engine Coolant from yellow to golden tan.
NOTICE: If the air discharge remains cool and the engine coolant temperature gauge does not move or the low coolant light comes on, the engine coolant level is low in the engine and must be filled. Stop the engine, allow it to cool and fill the cooling system.
No but it may be necessary to bleed the system more than once
Im out of ideas so I will opt out and let another expert try and assist you
Hello, I noticed you had someone helping you. Do you still have an issue?