Unknown XJ running issue

[Pastorjosh]

I was going to say your "dragging" was probably torque converter related, but seems like you have that figured out. I have a friend that is having an extreme cold no start. Ended up being the starter.


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[kingfisher23]

The Jeep lives!

I followed the advice above and pulled voltage on the starter solenoid. Nothing. Crud.

Pulled voltage on the ignition switch. Juice there. That's a good start.

As I pulled out the wiring diagram to try and track down the break in the system, I figured it'd be would be worth my while to to pull all the fuses again.

DOH!

Turns out I managed to miss a blown MAX-30 fuse in the PDC. Replaced the fuse, now it cranks right up. I feel like a goober, but the Jeep is up and running again. And now I know a bunch more about the ignition system than I did going in.

Moral of the story: make sure you check your fuses with a light.

I'm left with the question though, how would a fuse cause an intermittent no-crank condition? Is it possible that the mucked-up NSS is what caused the first problem and the blown fuse?