7.3 crank, but no start - Ford Powerstroke Diesel Forum
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Old 06-24-2014, 05:04 PM
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Exclamation 7.3 crank, but no start

Well, I have a 2000 7.3 power stroke. It Cranks but it won't start. It cranks fast. No smoke either. I drove it, everything was fine, and the next day it pulled this garbage. It rained overnight, but I have never had any issues after a storm before. I got good connections, I am getting fuel up to the bowl, with a new filter. I checked all the fuses and relays. I replaced the cam sensor, iprsensor. The injector harnesses and glow plugs have been replaced as well. I have enough oil, full tank of fuel. I checked all of my connections on the engine. I put my tuner back on stock. I unplugged the ebps,(the one on front of the drivers side head right?) and nothing.All of my lights on the dash are working, with the exception of no oil pressure gauge movement.my rpm gauge moves a little, just a frog hair above 0. My buddies scan tool found no codes. I just checked the hpop resivoir, and its full. Please help me out, this is my only vehicle, and I am at my Whits end.

Thanks,
Brad

Last edited by 'strokeboy; 06-24-2014 at 06:25 PM.
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Old 06-25-2014, 07:23 AM
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Holy Crap Brad!!! YOU have done your research, I've never seen anyone who has covered the basics as well as you have here

I'm kinda at a loss but, I'll tell ya what I'd want to check if it were me.

First, nothing gets you there faster than the right scanner (and here I know you talk about your buddies scan tool BUT, most of them aren't really much good for our trucks). You need a professional scanner, most here use the AutoEnginuity for personal use, if you have an Android device the Toque App can be very useful for pretty cheap too.

You say this happened after it rained. I'd be thinking about the IDM because of where it's located (actually outside the truck in the fenderwell) it is a common failure point from water getting inside. You should have a SES light with a P1316 though. In any case, it's a pretty easy thing to swap with ANY other 7.3 IDM for a quick test without the real diagnostic tools to confirm if yours is working or not (you know anyone who you could try this with?) Also, look above the fusebox, at the GEM module, for evidence a windshield leak has been dripping into it.

Fuel pressure, I'd want to confirm you had pressure if you can get a mechanical gauge on the fuel system.

I guess that's where I'd start. See if you can get the right scanner connected to monitor the sensors and pull codes (again a regular OBD-II scanner will say "No Codes Found" when there Are codes there). See what it reports from the IPR & ICP (it's the ICP on the ft head, and you were right to try that ). If you can find an IDM to try I would do that (worth a shot...) and being sure you're making fuel pressure is another good thing to know to go from here...
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Old 06-25-2014, 07:42 AM
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Thanks for your help, I have some new things to try
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Old 06-25-2014, 08:41 AM
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Have him do a Injector buzz test. This should assure you the IDM is ok. Have him monitor the ICP at crank. I have had a customer with orings blowed out and the Hpop isn't able to build press. Also a Check the Ipr valve. Sometimes the nut will fall off.
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