1984 ranger 2.8 ds ign swap wont shut off

[joshdohm]

i did a dura spark swap on my 84 2.8 also swapped carb and it worked great for 2 weeks and then last night it would not shut off when i turned the key off? any suggestions?

 

[enginepaul]

You're feeding unswitched power to the module - re-check your wiring.

 

[joshdohm]

it worked fine for a week then all of the sudden wire feeding pos on coil is staying hot when key is off.

 

[kimcrwbr1]

maybe your ingnition switch itself if it worked before it should still be working.

 

[enginepaul]

maybe your ingnition switch itself if it worked before it should still be working.

If it worked before, a bad switch is all it could be,-- unless by some odd happening, the ignition feed is shorting to a positive feed - but that would be my last thought and maybe impossible.
Check that switch. In theory, you should get a full 12v when starting and about 9v when running.
I just happened to change my switch again recently - the made in Mexico ones don't last anywhere near as long as genuine Ford switches.
(PS: You may have to drill out two rivets holding the switch to the column.)

 

[joshdohm]

that is what i was thinking. I thought i would swap out the switch if it does it again. seams to be working ok for now. thanks for the help