NO CEL OR CODES.
Initially I suspected it was fuel related so I tested the pressure at the fuel rail as well as a leak down test. Priming the fuel pump only brought it to 20 psi, and turning the key to try and start it brought it up to 40 psi but a leak down test revealed that it was losing pressure instantaneously and returned to zero within a couple minutes. So I replaced the whole entire assembly for the fuel pump as mentioned before. Upon replacing the pump/ regulator, I tested it again and my reading went to 45 upon priming and turning the key, and also there was no more leak down. (I didnt check the injectors because Ive had them in only for a few months and have periodically checked them from other builds while I had them off the engine and fuel rail. Theyre 12 hole bosch 24lb)
So I moved on to spark. I pulled the plugs and to my surprise, number six had a broken prong so I suspect Ive been running on 5 cylinders for a while. The rest of the spark plugs were definitely fouled so I replaced them all and got a set of pregapped .035, and I double checked the gap before installing. Still, the same result as before, the starter was strong but it still wasnt getting the engine to fire up. (Ive been doing all this trouble shooting while jumping my Jeep because without successful starts it has been killing my battery)
After that I just started poking around the internet. Moved on to the crank sensor, replaced it.. same thing. Did more internet poking (today), replaced the camshaft sensor, same result.
So far nothing I have done has made ANY difference in the way the Jeep sounds, feels, or does. My results are the same as the morning I tried to start her up but couldnt.
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