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Old 05-11-2018, 09:08 AM
Superduty00 Superduty00 is offline
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Default Crank no start has me stumped

So I have a 2000 f250 zf6 crank no start with white smoke while cranking
Things I've checked so far
Fuel filter changed
Tried different cps
Builds icp pressure while cranking ramps up to about 1900 or so
Icp sensor appears to be working when I unplug it it makes out on scanguage
Buzz test passed all 8
No dtc at this point
Removed tuner (ts 6 position)

Fuel bowl is filling up fast but drains itself pretty fast so I'm thinking maybe fuel bleed off somewhere? Any ideas
And I forgot to mention it does have an air dog 150 fuel pump and intake other than that stock As far as I know
  #2  
Old 05-11-2018, 11:10 AM
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Arisley Arisley is offline
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Check fuel pressure.
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Old 05-11-2018, 11:27 AM
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DieselDC DieselDC is offline
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Default Crank no start has me stumped

Somethings wrong with the fuel system. Shouldnt drain like you described.

Unplug the icp and give her a go. Doe she start?



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Old 05-11-2018, 02:00 PM
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Might want to pull the oil drain plug and see if oil or fuel drains out.
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Old 05-11-2018, 05:40 PM
Superduty00 Superduty00 is offline
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Ya that's what I was thinking not sure what would be draining the bowl so quickly...and ideas? I got a mechanical gauge so I can hopefully check fuel pressure this weekend
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Old 05-11-2018, 05:42 PM
Superduty00 Superduty00 is offline
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And no I tried it with icp unplugged and no change... tried three different cps I had just to be safe
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Old 05-11-2018, 07:04 PM
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You need a good scan!

Got a spare ipr? I have a few sitting around just for this very reason- rule sensors out.


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Old 05-12-2018, 12:03 AM
Superduty00 Superduty00 is offline
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Ya I have a spare ipr I was thinking about trying I have three 7.3s so plenty of ipr and cps to play with... I didn't think it would be ipr since I'm building plenty of icp pressure while cranking??? But easy enough to try swapping
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Old 05-12-2018, 12:12 AM
Superduty00 Superduty00 is offline
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And I don't have access to a good scanner but I have an a/e scanguage so any paramaters you recommend checking?
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Old 05-12-2018, 05:08 AM
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Quote:
Originally Posted by Superduty00 View Post
Ya I have a spare ipr I was thinking about trying I have three 7.3s so plenty of ipr and cps to play with... I didn't think it would be ipr since I'm building plenty of icp pressure while cranking??? But easy enough to try swapping


When you’re cranking and it doesn’t start , icp jumps high like that it’s pointing to an ipr/electrical issue. Once you unplug icp, truck must start if all sensors working and truck is in good order. If it doesn’t start, bad ipr. If it starts and it’s choppy, bad icp.


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