crank no start
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
crank no start
Coming home with a 96 ex cab long bed 7.3 on my trailer through the hills of West Virginia hurt something on my 06 f250.
I just hit 98k and mods to the truck are an SCT and an air dog 2. I had no problems all trip until I pulled over to fix my hood strap and the truck all of a sudden started missing and eventually dies. Cranks, but does not start. I put it back to stock, same thing. I unplugged my icp, same thing. I switched from my ad2 back to the stock pump and nothing changed. No MIL. sometimes, it'll fire up, run rough and die. I get smoke out of the exhaust while cranking and about 2-300 rpms on the tach. Hooked up the AE and got a couple body codes, but nothing flagged that would be a contributing factor. FICM is good measures 49v+ in all stages. ICP shows 1500psi+ while cranking. What else should I look into? I'll be checking fuel pressure tonight
I just hit 98k and mods to the truck are an SCT and an air dog 2. I had no problems all trip until I pulled over to fix my hood strap and the truck all of a sudden started missing and eventually dies. Cranks, but does not start. I put it back to stock, same thing. I unplugged my icp, same thing. I switched from my ad2 back to the stock pump and nothing changed. No MIL. sometimes, it'll fire up, run rough and die. I get smoke out of the exhaust while cranking and about 2-300 rpms on the tach. Hooked up the AE and got a couple body codes, but nothing flagged that would be a contributing factor. FICM is good measures 49v+ in all stages. ICP shows 1500psi+ while cranking. What else should I look into? I'll be checking fuel pressure tonight
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Even if I did have one or two injectors leaking, wouldn't the truck run but miss? I have put new injector orings and copper washers on last year when I tore the top end apart to do studs, oil cooler, egr delete etc and torqued everything when going back together.
Logistics Pro
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
What is that PID on AE that is .64 in the video? If it is the ICP then that is a problem. It should be .18 to .24 KOEO.
Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
If you do the injector buzz test, do you hear all 8 clicking strongly? Could be FICM even if the voltage is fine.
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Cargo Master
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Logistics Pro
Joined: Dec 2004
Posts: 4,138
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From: South Weber, Utah
You can disconnect the fuel line to each head at the fuel filter housing and put a balloon over the end of the fuel line and crank it to see which side inflates the balloon. to narrow it down even further remove the glow plugs on the offending bank and install one at a time and crank the engine over until you find the one that inflates the balloon.
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Was getting contribution codes for cylinders 6 and 8 so I figured it was on the passenger side. Well got everything out and everything looks fine. Moving to the driver side. I'll just replace the orings and copper washers as they aren't that much. I'll let you all know if I find anything.
Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
I would just do new seals and clean it up good. Looks like they didn't lube the o-rings up enough when it was installed. Was that a factory injector, or had it been replaced by someone recently?
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
I used a good amount of trans fluid on each injector when I removed them for my head studs. I had a lot of "help" when doing it though. I don't know whether or not it was torqued properly. Next time I'm doing something like this, I need to go through it and make sure everything is torqued right. Is it 31-34 ft/lbs on the injector hold down bolt?