1988 Honda CRX No Heat

1988 HONDA CRX
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ZZZDOGMAN
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Heater problem
1988 Honda CRX 4 cyl Front Wheel Drive 204000 miles
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THis is an HF model in outstanding shape...preventive maintenance done (I've had it since new.)

During a trip to CA and back to CO last week, the heater suddenly began to blow cool air only, i.e., no gradual reduction in heat noticed indicating a heater core blockage. Changed the thermostat and visually inspected heater hoses to include the in-line temp selector valve for blockages--non found. Still no heat. Thoughts?
Jan 11, 2008 at 10:26 AM
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BLACKOP555
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since you say both heater core hoses are hot then you should check your blend door which is located in the air ducts. you probably have a bad electric motor or a bad vaccum line.
Jan 11, 2008 at 12:18 PM