Question about Chevrolet C1500

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One hose hot and one is cold going into the heater core.you can here the venting change when switching form hot to cold so I think the hot cold control is working . dos the hot control valve control moore than one acuator ?

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  • Jesse Slater
    Jesse Slater Jan 02, 2011

    need year and make of vehicle

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Your problem could be 1 of a few so take off the cold one before the switch and see if the water comes out on its own,then check it again after you have refitted back on and try the switching over Hot to Cold check if air valve opens if yes then go to the hot side of other pipe and do the same then undo the cold side again and blow through ,if air goes through then you could have a bad thermostat or a water pump impella falty so check these out first before going behind the dash ,its a bugger of a job.

Posted on Jan 02, 2011

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  • Master
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Flush heater core if one hose is hot and one cold there is blockage in heater core back flushing heater core should fix problem

Posted on Jan 02, 2011

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1 Answer

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