Hi Guys: I haven't been here in several months as I got real sick last summer and was totally laid up for over 4 months. I am back to working on my 1955 Yard Horse again, but am having troubles with it currently that I need some help with. It is an F250 cab and front clip sitting on an 1975 F150 shortened 4x4 Chassis, with a 79 300 6 cyl., out of a 79 F150. My problem is this: I have it pretty much done, but can't get it to run. New battery, starter turns good. But when I tried to start it, once I hit the start cycle it wouldn't stop even if I shut the switch off. It was a universal type ign/start switch that I installed. So I tried a different starter solonoid relay switch. That helped to the point of it would shut off when I shut the switch off, but when leaving it on, (not on the start mode), it still kept turning the starter. I have never had anything happen to me like this before in over 50 years of working on them. So I bought and installed a new ign switch and a new Solonoid relay switch and installed them along with a new GROUND wire from the "brain box" control module mounting screw to the engine block. And it still keeps trying to start even in the ON position, but does shut the starter off when turning the key to off. I am really puzzled. I followed the only schematic I could find for the 79 F150 truck. I can't find a COMPLETE schematic for the truck, like for the charging circuit and the starting and ignition circuit. Anyone know WHERE I can find one and anyone got an idea WHAT the problem is? I would appreciate any help I can get. I haven't had a snow plow since early December and have been fortunate we haven't had a big snow during that time, but usually March gives us our biggest snow storms and I need to get this done before one hits and i am stuck in here. My driveway is well over 200 feet long and don't want to shovel 12 inches of wet snow for that distance at age 68 with my back the way it is, if you know what I mean. Thanks, Jim. <!-- / message -->
i had the same problem it sounds like with a 62 falcon, my starter solenoid had two terminals to attach a small wire to. We simply took the wire from the switch off of the one side and switched it to the other terminal and misteriously the proble went away. Cant explain and dont really care how it work it just did. Hope this helps
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