PLEASE HELP....HEAT NOT WORKING

[riviera rider]

2001 tahoe. 123k miles. Heat turned cold out of no where. Eng temp shows thermostat should be working properly and i dont smell any coolant to show me the heater core is leaking. Got two little boys and cant be driving in this chicago weather like this with them. Any help is appreciated

 

[SDuncan2006]

I would check fuses first. Is the blower coming on?

 

[riviera rider]

I would check fuses first. Is the blower coming on?

Blower works on every setting as normal.

 

[bottomline2000]

Check both hoses going to/from heater core. If one is not hot the heater core is blocked.

 

[tlang]

Check both hoses going to/from heater core. If one is not hot the heater core is blocked.

Agreed see if one is ****** than the other. Is so you can flush it out with a couple of T's