Quick question. I believe this wire in the photo is the feed for the glow plugs from the switch. The terminal is in need of replacement. How do I remove the "fitting" that holds it in place? It's not a nut or screw head. I assume it is treaded on to the post. I don't want to do something silly. I am following the tread for adding a selnoid to help with a cold starting problem on a universal diesel 5424 and this is the first step.
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