bled system from bleeder screw. temp guage reads normal. is there a common problem that i should check?
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2000 Chevrolet S10 Question: when i run heat it only blows cold air. new thermostat and bled system from blee
Answer #1pushrod January 06, 2013, 14:15Master
Maybe, What engine¿?¿?!!!! IF 4.3 what bleeder screw?? Give more info. and we can too.
Hey that rhymes, forget answering questions, i am going to try poetry!
Kalle S from RepairPal Test Shop, January 07, 2013, 17:18Enthusiast
Could be a multitude of things. Heater core could be plugged, heater control valve non op, or just the blend air doors malfunctioning.