This could also be from a bad diesel in your jeep, do you fill up from the same gas station/pump? Another possibility could be improper fuel mix, I know this is ECU controlled, but who knows... I see you're running the eco tune, you should try reflashing the tune and see if that helps. Not very likely, but it can be, if once you fix the injector leaks it still starts hard, I'd look into the quality of fuel. You can try adding some cetane booster (liqui moli has a great one and you can get it from NAPA) and see if that helps. Also, doing a compression check when you replace the injectors wont hurt, you can buy/rent a kit and do it yourself, just to eliminate another potential issue. I recently got an 82 Mercedes with the 5 cyl diesel, the glow plugs in it were full of burned soot, I had to really pull them out with pliers, I was afraid I will rip the tip off, only 2 were working, after replacing all 5 with new, engine starts when I show it the key, lol. This indicates a partially burned fuel and also bad fuel, the guy that sold the car used vegetable oil and diesel mix in the summer, no special heaters and conversion. I also wonder if you got that soot buildup on the injector due to compression loss... Please keep us posted with the results of replacing the cooper sealing washers.
I also have the steel plugs and in that temperature, it starts, not as easy as with ceramics, but it starts, maybe in 3-5 seconds
_________________ 2005 kj CRD, samco, suncoast tc, provent, Kennedy lift pump, GDE ECO full torque, 2nd gen filter head, 245/70/16 a/t tires, mopar light bar, fumoto oil valve, OEM Skid Plates, ARB Front bumper and HD OME, tru cool LPD47391 40k GVW tranny cooler (stock cooler delete), FF Dynamics e-fan and shroud, rocker arms replaced, HDS2 190F thermostat.
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