I’ve tried to gaze they some of the old posts. But I don’t know if my problem is different. I have a 15 F150 5.0L My rad fans are on high as soon as u start truck. They stay constantly on high while driving. No a/c or defrost is being ran at the time. Here in Indiana it is still cold/cool daily. My engine coolant has been at a good level. I have got into the fuse box under the hood. When I remove the relays2&3 the fans turn off, but once I reinstall them same as before. I have even switched them with other relays. And disconnected the battery thinking of a reset. But the fans stay running. They do shut off when I turn the key off. I am not a truck guru, so I’ve tried google and now here. Any help would be greatly appreciated. Thanks

going on the machine Monday morning at the dealership