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Old 02-12-2013, 08:38 AM
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no start

2004 6.0 f350

I forgot to plug the truck in overnight and it got down into the teens. The next morning when I hopped in it didn't start I realized I hadn't plugged it in so I plugged it in and took my car. Next morning it's turning like crazy but not firing up. Is their a common problem that pops up from attempting to start the truck cold? Just looking for things that tend to be higher up the list of possibilities to look at due to leaving it unplugged before I do a run down of all the normal no-start issues.

TY for any help you can throw my way
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Old 02-12-2013, 10:17 AM
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check your ficm voltage, the truck will start at -30 not plugged in !!
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Old 02-12-2013, 11:57 AM
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Ficm is at 48.5. Apparently my batteries are shot having always plugged it in this was the first time they had to start it cold and power up the glow plugs. I'm gonna have to make it into town tomorrow and get new ones.

Thou right now hooked up to the charger they are turning it over just fine and the block heater now has it up to temp. Still won't start which brings me back to if that original failed attempt would of messed something up.



(edited due to fat fingers)

Last edited by Rod.stan; 02-12-2013 at 12:34 PM.
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Old 02-13-2013, 10:33 AM
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I got the new batteries in so now I can finally start to look deeper without having to keep charging the old ones.

My ipr at cranking is at 77% and my ICP is low at 250. I unplugged the ICP and the gauge defaulted to high 900's but still didn't allow it to start. Do I jump right to assuming its the HPOP or are their some rule outs I can do first. I have a SGII so any reading that would help I can pull easily i'm not getting any codes thou.

Im curious now, since pulling the plug on the ICP made it read higher was I basically just ruling out the sensor and making sure that the low oil reading was truly a physical issue and not electrical?

Also the low IPR reading, is that low enough to be concerned my understanding is I'm looking to be around 85% is the loss of 8% a significant amount?

TY
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Old 02-13-2013, 11:42 AM
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Pulling the plug on the ICP gives a fake number so the FICM will fire the injectors. However, if the HPO is low, there is not enough pressure to flow fuel through the injectors. You won't get codes for this type of no-start issue. If you kept trying to crank, it might get toward 85%. 77% is certainly enough to build pressure for a start. Rather than me retype it, go through the no-start sticky. It will probably take you to the test for HPO troubleshooting where you will hook up air to the ICP port (05-07) or oil rail (03-04) while trying to close the IPR solenoid. If your readings are correct, it is pointing to what you thought. At least it happened while it was parked at home!
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Old 02-13-2013, 08:41 PM
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odd. starting it cold should have increased icp. the previous hard start cold must have been a separate issue.
on an 04 that won't build icp cold, it's gonna almost always be either the ipr valve or hpop.

command the ipr shut and air up the hpo system. if you hear air leaking up both banks, the ipr is stuck. if not, pull the oil filter cap and listen for air bleeding back into the filter housing. if air bleeds back, pump is the problem
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Old 02-14-2013, 06:08 AM
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So if I unplugged my heater and let the oil thicken up is it possible that I might get enough pressure to fire. The truck is up by my house right now in the driveway. Being able to get it down to my garage 200ft away and out of the snow would be much nicer. Working outside in subzero temps with snow flying just sucks. My garage is uphill from my house and I don't own anything bigger then this beast to yank it up there.
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Old 02-14-2013, 06:23 AM
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it's possible. give it a try
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Old 02-15-2013, 07:11 AM
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oil quality

just curious, what oil are you using ? and filter? i use rotella and a fram filter, have heard horror stories about jobber filters !!
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