no heat: 99 si

[earlybill1]

I have a 99 si with a b16a the heat won't work I've changed thermostat and flushed radiator plus heater core still no heat is there something I'm missing only one heater core hose is getting warm

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[daperez13]

Did you "burp" the system?

 

[FlatRate]

Did you "burp" the system?

Agreed! Bleed the system, properly and heater will work if all other components are working without malfunction. Any air pockets will prevent the heater from worming up properly.

While bleeding, leave heater on full hot and full blast. This will help cycle the hot coolant into the heater core and bleed the entire system.