papaindigo wrote:
Do what Sir Sam says to which I would add do NOT try to crank it until you do what Sir Sam says. His 2 checks are critical to determining if there is water in the oil and/or cylinders especially the latter. If there is water in the cylinders and you don't blow it out (old motor cross trick) when you try to crank you will hydro-lock the engine and potentially bend all sorts of things.
If Sir Sam's two checks are ok put the injectors back in and trying cranking it up. To do so I'd be paranoid and assume water in fuel tank given the water in fuel light so step 1) undo fuel filter head from firewall (I think you can leave the fuel line from the head to the CP3 in place but you will have to remove the fuel supply line - push it off don't try to pull it); 2) lift if up to get at the water in fuel sensor, unplug sensor wire, remove sensor and drain filter; 3) reverse steps 1 and 2; 4) get enough "fuel line" (cheap clear vinyl tubing will do as this is a one time thing and it will let you see fuel movement) to go to a can with ca. 1 gallon of brand new clean diesel fuel; 5) prime the filter head (pump the primer, crack the bleeder for ca. 2 seconds, close bleeder, repeat until clear fuel with no air comes out of bleeder; 6) then and only then try firing the engine up.
If it fires up then immediately shut it down. At this point I'd consider replacing ALL the fluids (bleed brakes, power steering, transfer case, differential, and fuel tank).
+1 to this excellent advice, not worth screwing up the jeep more than it is, it looks like a nice rig and its a shame to break anything due to negligence...