What should I check if my heater stops blowing hot air?
Toyota Corolla 1996 - the A/C works but the heater stopped blowing hot air. The air is
actually hotter when using the vented air from outside.
Is the coolant full? Air blend door inoperative, plugged heater core.
I will double check coolant. Where is the air blend door? How to check the heater core?
Air blend door is inside the heater box. To check the heater core you can test the temp of the coolant going in the core to the temp coming out of it with the heater fan off, the temps should drop at least 10 degrees, but I would recommend it be checked professionally as you are dealing with hot coolant and components.
@tennisshoes - Great stuff, thanks a bunch. You Are the Bestest!!
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