RepairPal is your advocate for car care advice and guidance

Q: step by step how to replace heater core on 1999 chevy s10 pickup on 1999 Chevrolet S10

I have no heat at all. used to work until I had a coolent flush a few months back
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
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.
Before I got into the heater core I'd check the thermostat first then make sure the heater control is working
Didn't find what you were looking for?