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carbtech72

2010 Ford Edge cooling fans not shutting off

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2010 Ford Edge, came in for fans inop. Replace cooling fans assembly and they worked fine. Customer returned a few days later with complaint of fans now not shutting off. According to the wiring diagram the only pieces in the fan system are the coolant temp sensor, PCM and cooling fan module on the fan assembly. I replaced the fan assembly again hoping that would fix it but they still stay on. Replaced the ECT sensor, still staying on. Anyone ever come across a bad PCM keeping the fans on?

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