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This is usually a pretty easy fix. It can be the fan, relay, or temperature switch. In some cases there can be an ECM in the mix as well.
If you have a volt meter or test light you should be able to check for power at each device.
Depending on your vehicle it may switch the +12v side or the ground to complete the circuit.
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∙ 14y ago
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== == Cooling fans are designed to start at 235 degrees
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1996 Chevy Impala SS cooling fans not running when temp almost in red unpluged temp sensor and fan turn on replug sensor and fans turn off Anyone have a clue?
I too am having the exact same problem!
