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Your process is good. Go ahead and break open the injector lines from the injector before you start cranking to see if anything comes out. Even the slightest stream from one injector gives you the indication it could-maybe-possibly-sorta-kinda has a chance to loosen itself up and fire. Tighten...

It's all internal on the IP at that point - gummed up that is. It's just from the truck sitting and the new style diesel gumming it up. Yes, forcing Marvel Mystery Oil or a blend of your choice to hopefully free up the internals. I've had luck once on a really stuck pump by clamping off the fuel...

The 8.3 suffers from dry rot fuel lines, stuck fuel shutoff, and (if a tractor/dump/wrecker) bad fuel tank selector switch. These are your most common problems. As of the past two years I've seen a large trend in stuck IPs for this engine due to the fuel and lack of operation. There are a few...