Crank No Start! - Ford Powerstroke Diesel Forum
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  #1  
Old 09-09-2013, 01:57 PM
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Crank No Start!

2002 f350 lariat crew cab 4x4 7.3l diesel

Went out to eat with my wife, go to leave and it just cranks. towed it back to work shop and have gone thru just about everything I can think of, only have had a crank no start once before and I took my DP tuner off and cleaned up the connectors a bit and put it back on and it started up fine( tuner may have not been issue?) only other history on truck is the battery light has flickered on and off when going down the freeway, goes off on next bump....

pulled codes and got
P0380 (fuel bowl heater Malfunction)
P0470 (exhaust back pressure)

now here is a list of everything I have checked in order to help some more

new CPS first night( GREY from ford)
checked all fuses and relays
new PCM installed this week
HPOP oil checked
unplugged fuel bowl heater and still just cranked
unplugged valve cover harness and applied di electric grease
batteries are charged and to spec
no smoke during crank
WTS light functions normal

checked voltage at the valve cover harness and there is 12v delivered to glow plugs, but only .1v to injectors even during crank

all issues are leaning me towards IDM failure
would like to get some other insight before i go buying everything under the sun.
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Old 09-09-2013, 02:59 PM
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I have fuel to the bowl, drained and checked.
PLEASE HELP!
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Old 09-09-2013, 03:46 PM
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You shouldn't have to be guessing like this though....

What kind of code reader are you using? You know you need a good one, a professional one, to retrieve the codes from our trucks - right?

With the right scanner you need to monitor the sensors, as you crank, to see what's going wrong (start with the HiPres Oil system, ie. ICP & IPR). The IDM has it's own diagnostic procedure and, again, the right scanner will do a "buzz test" and allow it to further resolve Injection power issues (the injectors are driven by AC and might be the reason you're not seeing the voltage you expect)

You've done a LOT of work, maybe spent a Lot of money replacing parts the were good. It's time to stop, and let the truck tell you what's wrong.
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Old 09-09-2013, 04:27 PM
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Thank you for your speedy response, I am still on the look out for a good scanner, to attempt buzz test etc. . All I currently have is a glorified code reader. In the morning I will be filling hpop oil as I suspect draining for excessive cranking without firing, correct me if that doesnt make sense.

only money dropped so far is for the PCM due to a late night DP tuner pull out which broke a servo and sent me down a long diagnostic trail to begin with.
tuner is still not installed to eliminate any further diagnotic confusion
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Old 09-10-2013, 06:07 AM
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Those code readers are pretty much useless for us, what you need is an AutoEnginuity (@$350 and you add an old computer).

The HPOP res is kept full by the LPOP (engine oil pump) and excessive cranking shouldn't be a problem as the LPOP supplies Much more than the HPOP uses. If it's low, you have LPOP problems.
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Old 09-10-2013, 09:15 AM
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Topped off hpop to within an Inch to be sure, still no fire
Unplugged iPR and crank no fire, I read that oulling the IPR sensor will engage the comouter into a default pressure and should still fire atleast.
Batteries are fully charged and hooked to jumper box to ensure proper power during start.
Still not running and im really beginning to worry! PLEASE HELP!
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Old 09-10-2013, 10:43 AM
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Not the IPR, but the ICP is what you can unplug to have a default value set by the PCM. Make sure what it is you're unplugging

Here's my usual No Start checklist, even though you've already covered most of it.

WTS Light? - do you get it when you first roll-on the key? (shows the computer is running)

Do you have a spare CPS to try?

Is there fuel in the fuel bowl now? Does it refill after cranking? (open the drain level to check)

Can you hear/feel the pump running (below the dr seat, against the framerail)

Could the fuel gauge be giving a bad reading? (Below 1/4 tank?)

Is your truck "chipped"? If so, remove it as a Test.

You can unplug the ICP sensor, as a Test, so the PCM sets a default value for the IPR to run on.

Did you check the plug and sheet metal nut going to the IPR? That nut can vibrate off and allow the solenoid going over the valve to slide around. The wires going to the IPR can get brittle, crack, and short together. Make sure the plug & wires look in good shape.
--------------------------------------------------------------------------------------------------

But, in the end, what you need now really IS to get it on the right scanner....
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Old 09-10-2013, 01:45 PM
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CPS is brand new from ford( was my first checked item)
Tightened tin nut on IPR
Unplugged ICP and still no start
Drained fuel bowl and it is refilling
WTS light functions as it should
Can hear fuel pump running
Fuel gauge is correct
Truck was chipped but hasnt been reinstalled since new PCM
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Old 09-10-2013, 03:27 PM
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Quote:
Originally Posted by NoRalPh View Post

But, in the end, what you need now really IS to get it on the right scanner....
I know you don't want to hear this....
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Old 09-10-2013, 03:54 PM
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Yeah ive reached out to some locals but still nothin for scanner. Just some shops tellin me to bring it in and open up my wallet....

Should the battery light be going off at any point during key on or anything, im havnt trouble remembering. Battery light is on all the time, even while cranking, same with check gage light
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