Heater Core Question
#1
2004 gmc sierra slt, digital duel climate control.
Does anyone know if the heater core works off of a automatic valve to regulate the flow of hot water through the core when the temp. **** is changed to a different temp?
Does anyone know if the heater core works off of a automatic valve to regulate the flow of hot water through the core when the temp. **** is changed to a different temp?
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