Rick's Free Auto Repair Advice

Posts Tagged: heater problems

no heat Chevy Blazer no heat oldsmobile Bravada

I don’t have heat in my Chevy Blazer, no heat Oldsmobile Bravada Readers write to me asking where the heater temperature control valve is on their Chevrolet Blazer and Oldsmobile Bravada. BUT, GM’s term for that “valve” is really misleading. It’s not a valve at all. The hot coolant comes into the heater box and into the heater core. The blower motor blows air through the heater core. GM uses a temperature door to regulate how much heat gets into the passenger compartment. Most manufacturers call this a “BLEND” door … Read More

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