Join Date: Oct 2012
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
2002 7.3 hard start, no start
Gentlemen, I got a few questions for any and all that can lend advice and expertise. The truck in question is a 2002 7.3, edge attitude, 4in mbrp exhaust, airraid intake, otherwise stock, its an auto and has the tranny temp gauge, so im assuming it has updated electronics.
My issues are as follows: If the truck sits for less than 8 hours or so it will crank fine. If it sits longer it is impossible to crank, the motor turns over, but will not start. My efforts thus far have been: new batteries, alternator, starter, glow plugs, and i tested the gp relay, it tested fine.
If I use a little ether (i know, not a grand idea), the truck will crank, and run hard, audible perhaps fuel knock, and zero power. The accelerator has no effect on rpms until it runs for a few minutes, like a dead pedal. If i can get the truck moving and on the road the power picks up slowly. If i mat the pedal it will smoke and barely move, then gradually pick up in stages, then bam you have full power and it will run fine.
Of note: the truck gets terrible fuel mileage and has power issues even when running normal, egts are astronomical if you lay into it with a trailer, boost never gets above 10psi, this behavior has been typical of the last year or so. It is a farm truck, we run offroad fuel, the fuel filter was absolutely shot, muddy mess, i have changed it twice in the last two weeks. I understand there are many options here, but what i want to know is whether or not the injectors are shot. It seems to me the problem is somewhere in the fuel system, and we had to replace an injector a few months ago. Any suggestions?