With the concern that you are having my first step would be make sure that the glow plugs are drwing the correct amps 200 amps off the relay, if they are good then I would move to a crank case pressure test to make sure you have good compression in all cylinders, It is a good way to make sure that if you spend the money on new parts your engine is worth it. 7.3 air boxes in those years let lots of dust through and it is possible that you have dusted the engine, rings are not sealing anymore. Try that first.
Monday, October 25th, 2010 AT 7:14 PM