M1008 intermittently blows ignition fuse

[biggestc69]

I'm new here and I've been through the previous threads and havent seen a similar post so I hope that I'm not reposting a previously answered question. I have just purchased an m1008 not running. After charging the batteries I had power and the engine would crank but the glow plugs would not cycle. I checked the fuses and found that the IGNITION fuse was blown. Replaced the fuse and the glow plugs cycle like a champ, truck runs fine. But every 4th or 5th start it will blow the IGNITION fuse. I know that this is due to a short or failing component in the ignition system, could it also be something in the glow plug system? I have the wiring schematics and I am familiar with army TM's I just wasnt sure if this was problem that someone else had encountered and could give me a good place to start or if I should just get the voltmeter out and start hunting down wires? Thanks for your time and answers!

 

[dependable]

The first thing I would check is the purple wire that runs the starter solenoid. They sometimes get abused during starter change outs.

 

[biggestc69]

Thanks I will be sure to check that one first.