Ignition Problem

[citywalks]

Just pick up a 72 f 100 with a 360.

I go to put the key in and it did nothing start the truck. I replace the starting relay. That did nothing to fix the problem. You can crank the truck over jumping the relay but nothing with the key.

I replace the ignition swith and the key tumbler with new. this still did not fix the problem

Could it be the coil or a wire on the coil causing this problem.

How would one go about troubleshooting then fixing this issue.

[Leadfoot]

is it auto? if so its the neutral safety switch my bet.

[citywalks]

It is Auto Trans, Where might that switch be located?

[citywalks]

Well with your information I was able to get the truck started with the key. Thanks so much now I think I will have to fix that part

[flyboy2610]

Glad you got it going!