ANSWERS: 2
  • heater core needs to be replaced
  • To check the heater core locate the heater hoses. There should be two rubber hoses going from the engine and through the firewall. When the car is at normal operating temperature both hoses should be hot to the touch. If they are both hot then the heater core is flowing. If not then Bobbbb would be correct. If the heater core is ok then then the problem would be in the controls. It could be a cable, vacuum hose, or electrical problem.

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