1997 Safari/Astro No Heat Issue - Control Valve? Clogged Core? Blend Door? - Let's Figure This Out

2 years ago
32
GMC Safari No Heat Blend Control Actuator Heat Control Valve Astro

It's winter and my heater doesn't work. I've had to make multiple early morning drives and it was tough. With no heat I also had no window defroster.

I'm not a mechanic so my troubleshooting method was probably not the most direct, but in the end I found the problem and now have heat.

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