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It can be that your coolant level is low, your thermostat is stuck, the actuators are sticking...

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16y ago
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Q: Why would a 1997 s10 Blazer heater only work on occasion?
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Replace heater core in 1997 Chevy blazer?

how to replace a heater core in a 1997 Chevy blazer


How do you remove the heater fan on a 1997 Chevrolet blazer?

were is the heater relay on1996 jimmy?


Where is the location of the heater motor in 1997 Chevy blazer?

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To many steps to list here, would recomend purchasing a shop manual if you intend on replacing that heater core yourself.


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What other years blazer parts are interchangeable with a 1997 Chevy blazer?

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