Khalifa

My 2011 Silverado radiator electric fans connectors keep burning. First I tried replacing the e fan connectors to new ones but same issue after couple of days, last time I got a used radiator fans from a 2012 Tahoe but also connectors failed again, started in passenger side and driver side just started. Any idea?

wardlws

too much current draw... maybe get new fans. One of the motors might have a short to ground.

you can try measuring the resistance of each fan. Not sure what a good number would be, maybe 0.5 to 0.75 ohms. if close to zero... the motor has a problem. if way higher than 2 ohms, the motor might still have a problem.

RDF1

Find the ground for the Fans and clean it and reattach.
I got a 2008 here I can check amps and ohms tomorrow on the fans.