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06 GMC Sierra 1500 4.8L V8 radiator cooling fans not running


SIERRA83

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Posted

Cooling fans on my truck not working.  I noticed them not working one day when sitting at idle for a long period and motor started to heat up.  I have replaced all 3 cooling fan relays and the cooling fan assembly including both fans. I have tried unplugging the cooling sensor which from what I understand should make the cooling fans come on.  Not sure where to go from here, any other tricks I can try before bringing it to a mechanic?

Posted

Did you check for power at your cooling fan fuses? Should be 40a and 10a fuses to power the relays. 

  • 4 weeks later...

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