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Step by step how to replace heater core on 1999 chevy s10 pickup

(1999 Chevrolet S10)
in Victorville, CA on October 05, 2013
I have no heat at all. used to work until I had a coolent flush a few months back
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Popular Answer
on October 05, 2013
Try flushing the heater core itself first! It is major repair for a seasoned mechanic to replace that core!! Check youtube for a video on flushing it out.
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on January 13, 2014
Before I got into the heater core I'd check the thermostat first then make sure the heater control is working
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