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danielappleby1985
daniel ... 2/14/2013
1988 Toyota Pickup Base 4Cyl2.4L - Engine
Why is my heater and moter not getting warm?
the heater core is new. thermostat new. nothing is stopped up. it has antifreeze in it.
1 Answer
  • CVO
    CVO 2/14/2013
    Insufficient coolant , trapped air in the cooling system might not have enough coolant to full fill the heater core.
    The hot coolant flows from the engine to the heater core through the "inlet" hose. After circulating through the core, the coolant returns to the water pump through the "outlet" or "return" hose. Both the inlet and outlet return hoses should feel hot when the engine is at normal operating temperature and the heater is on.

    1. If the both heater core hoses were cooled, then this vehicle might have an insufficient coolant in the cooling system.
    2. If the heater core inlet hose is hot and the outlet hose is cool, the heater core might be clogged.
    3. Check the heater control valve, ii may not working.

    Note: check the radiator coolant level and top it off as needed.
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