SWITCH ASSY, IGNITION, Motorcraft, D8TZ-11572-A
I had this bizarre problem with my fan. If I turned the key to on with the fan on it blew fine. If I cranked the engine the fan quit. After quite a bit of puzzlement over this I decided logically that since the only thing that moved was the key that it had to be somehow related to the ignition. I still even now have no idea exactly how. In these days of foreign made knock off parts, I was surprised to find an authentic Motorcraft ignition switch for my 79 F150 on the NPD website. Ordered it, installed it, problem disappeared. YAYYY, LOL.
Submited on October 09, 2018 by Mac F.
YES I would recommend this product.