Q: How to remove and install the engine cooling fan assembly?A: The ECM controls the two-speed radiator fans based on input from various sensors. For 2011 and earlier models, remove the upper radiator hose and fan connectors. For 2012 and later models, remove the airbag and horn wiring harnesses, radiator cap adapter, and upper radiator hose. Remove the upper radiator core support and fan support bolts, then remove the fan assembly. Detach the fan blade assembly and motor if necessary. Reinstall in reverse order, applying thread locking compound to the fan blade assembly nut and reconnecting the battery.