Heater Core Help Please I need it.

[2005G35NYC]

I looked all over other forums including this one and found nothing so i need some help.

PLAY x PLAY for 2005 G35 Coupe Auto 36K Miles

1.Bought the car Aug 2I

2.Drove the car Around no problems -- A/C Works Fine And No over Heating.

3. 2 weeks ago decide to use the heat in the car and notice that it blows cold air whiles idling. Heat works great whiles driving.

4. Did research and found out the most common problem can be air in the system.

5. One week ago i performed a coolant flush, removed the air release and did everything properly. Still the same problem.

6. Infiniti Dealership did a Coolant flush Yesterday. Still the same problem.

7. I am beginning to think that the heater core is clogged. I also hear a water noise every time i start up and drive.


Has any ever changed the heater core or performed a back flush on the heat core?

I need advice. Thanks.