my 2001 chevy Blazer heater will not work, the AC works great but no heat
The heater core may be plugged, coolant flows through at at all times, there is no shut-on/off. Still looking for more information , but if you decide to replace heater core, this is what you will be getting in to.....your call...click for full screen I did some reading, and for the life of me I still don't know why they took the steering wheel off..otherwise, it's this much work
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