Why would I not be able to get hot air from the heater when engine is at normal operating temperature?
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2000 Chevrolet S10
Question: Heater controls
Answer #1dandd November 23, 2010, 18:54Master
you could have a defective or malfunctioning temperature blend door. Its job is to direct the air over the heater core, so it gets warmed up!
Replyronsa, November 24, 2010, 08:05Rookie
Thanks for the response. I was thinking maybe the control in the dash. If one were to check the blend door you mentioned, where would one find it, firewall or under dash?
I know on my 2000 Silverado, the entire dash had to come out to replace my heater core!
Answer #2Visitor, November 24, 2010, 08:56
Answer #3Visitor, January 17, 2011, 00:26
Sounds like your heater core is air locked, and it just needs to be back flushed.