heater going out?? - FirebirdV6.com/CamaroV6.com Message Board

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  • heater going out??

    after about 45 minutes of driving, my heater stops blowing hot air. the fan still works...just the air isn't hot anymore. it gets to the point where it starts to feel a little (cold) drafty. it's not "a/c" cold, but definitely NOT hot.

    anyone else ever had/heard of this problem? it's a new one to me.

    thanks.

  • #2
    Re: heater going out??

    you might have a clogged heater core. maybe the coolant is not passing though the heater core and it just sits there and starts to cool down , there fore having it start to blow cold.

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    • #3
      Is the engine coming up to full operating temperature?

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      • #4
        Re: heater going out??

        yes, the engine is operating at full temp.

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        • #5
          Re: heater going out??

          If you are still having the problem, try this: Disconnect both heater hoses from the engine and use a garden hose to flush fresh water through the core in alternating directions until the water flows freely out the other hose. Then reconnect the hoses to the engine and top off the coolant. You may need to bleed the air out depending on how much water came out of the engine.

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