2006 Toyota Corolla heater problem

2006 TOYOTA COROLLA
1.8L • 4 CYL • 2WD • AUTOMATIC
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WIDEG76
  • MEMBER
  • 2 POSTS
The heater puts out hot heat on lower setting when you turn it on high the heat cools down what would cause that to happen
Dec 30, 2014 at 2:27 AM
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BMRFIXIT
  • ✓Experienced Mechanic
  • 19,053 POSTS
Not enough coolant flowing into the heater core
flush heater core and check heater valve operation
Dec 30, 2014 at 2:31 AM
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WIDEG76
  • MEMBER
  • 2 POSTS
so that would make it not stay hot from one setting to another
Dec 30, 2014 at 2:42 AM
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