Question about 2003 Chevrolet Astro

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My 2003 Astro has no heat coming out although the knob is set to highest position. It was working last winter but I suspect a valve is stuck, any ideas?

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  • Anonymous Oct 15, 2009

    I finally tapped on the heater control valve and the diaphram opened..I now have heat again..trying to get underneath to hit linkage with WD40

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It could be your thermostat heater core or dirty colant

Posted on Oct 13, 2009

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