1967 ford f-100

[ks sailor]

Having all kinds of problems. No spark from ignition coil, headlights won't work, and battery keeps running down and won't jump start. Other than the obvious, I have a ground problem, any ideas?

[fordman]

bad key switch maybe. power for the coil comes from the key. and only at start up direct 12 volt boost comes from the solenoid. try wiggling the key as you start it. see if that helps.

[TX69F100]

Also, check your ground(s).

[fordamericana]

Having all kinds of problems. No spark from ignition coil, headlights won't work, and battery keeps running down and won't jump start. Other than the obvious, I have a ground problem, any ideas?

That sounds like a project, like mine was, I spent a couple weeks just going through the wire harness one wire at a time, and repairing the rats nest of cuts and splices under the dash and behind the cluster...
This should help...


and there is more here...
http://www.fordification.com/tech/schematics_h.htm