2000 Blazer Zr2 No Heat And No Ac

By ginwolf
January 5, 2010 in Ask A GM Technician

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ginwolf

Posted January 5, 2010

Have a 2000 Blazer ZR2. It has no heat or ac. It is not the heater core. I have checked that and it is good, flushed it completely twice. Get heat on both hoses. Temp guage comes up like it's supposed too. Has right level of coolant. No blown fuses. The blower motor works great. Can turn it to all positions and it blows great. I am at a loss. Only thing that I can think of is something in the vacuum lines. Can someone help me.

Thanks - Gin

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