Replaced heater core and evap core now truck will not blow heat. I think I have an air pocket in the system.tried several times to get it out with success .noticed radiator is hot in 1 side and not the other but temp is fine all the time.what should I do?

If the radiator is hot on one side and cold on the other, there's likely blockage and it should be either rodded or replaced.

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Originally Posted by noords

replaced heater core and evap core now truck will not blow heat. i think i have an air pocket in the system.tried several times to get it out with success .noticed radiator is hot in 1 side and not the other but temp is fine all the time.what should i do?

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Did you use any type of stop leak before deciding to replace the heater core? You may want to try using a garden hose to flush out heater lines also check the thermostat

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Originally Posted by kyoung920

did you use any type of stop leak before deciding to replace the heater core? you may want to try using a garden hose to flush out heater lines also check the thermostat

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Thanks for the your response I figured it out the door inside the case where the heater core and evaperator core are was bound up and would not open and close going back in to repr that this weekend have to remove dash again.