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Is there a fuse for the heater, the blower is working and the water pump was changes 2 months ago, it just won't through out any heat

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  • kakima Dec 25, 2016

    Hi deberah lynn chick, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?


    What year, make, and model?

  • deberah lynn chick
    deberah lynn chick Dec 26, 2016

    2003 buick rondezuos cx

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Maybe thermostat or head gaskets gone.

Posted on Dec 26, 2016

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Could be the blend door motor. Under the dash, drivers side. This can be checked with a scanner. If it's not opening, no heat. Before that I would make sure the heater core lines were getting hot. Get the engine to operating temperature, open the hood. There are 2 hoses that go to the core at the fire wall. They should both be hot. If right temp, you can touch them, but not for long. If one is hot and other is warm, heater core could be clogged up or air in it. Rev it up and see if the other one gets hot. If it doesn't, replace the heater core. If both are hot, go after the blend motor.

Posted on Dec 26, 2016

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Ok first of all make sure your coolant level is full only check on cold engine.I would then start engine make sure engine temp gauge is rising to normal.I would say if it does not the problem could be thermostat stuck open.re&re thermostat problem solved. If you find level is ok and temp gauge is climbing well problem could be in heater system. I believe you said the water pump was replaced so also make sure there is no air trapped in engine cooling system bleed all air out.

Posted on Dec 26, 2016

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