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post #1 of 2 Old 03-31-2012, 09:50 AM Thread Starter
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No Hot start

Okay well my truck fires up great when its cold like in the morning or its been sitting long enough to cool down, but if its up to operating temperature it wont start. it just cranks and cranks. when its cold my icp voltage while cranking is .9-1.0 and when its warm and cranking im getting .6-.7 which isnt enough pressure from what i understand. in needs to be at .8 or higher to get the 500psi to start. Now if i start it it wont die on me when it gets to operating temperature but it will loose power the warmer it gets, and my icp at idle is 1.0-1.1 when warm, and at half throttle it goes to about 2.1-2.3 and WOT it drops back down to 1.1-1.3. Any thoughts on the problem? im thinking a HPOP leak or ICP sensor.

I was going to change the sensor but wanted to see what everyones thoughts where before. maybe its not the sensor and it is a leak. i dunno im hoping one of you fellas will. Thanks.

Mike:
2003 F250 CCSB 4X4, 6.0L powerstroke.
-Sinister coolant filter
-Upgraded blue spring
-5" diamond eye exhaust W/ 6" tip
-Edge CS
-SCT tuner W/ vivians looney tune
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post #2 of 2 Old 03-31-2012, 08:15 PM
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Originally Posted by MacDougall View Post
Okay well my truck fires up great when its cold like in the morning or its been sitting long enough to cool down, but if its up to operating temperature it wont start. it just cranks and cranks. when its cold my icp voltage while cranking is .9-1.0 and when its warm and cranking im getting .6-.7 which isnt enough pressure from what i understand. in needs to be at .8 or higher to get the 500psi to start. Now if i start it it wont die on me when it gets to operating temperature but it will loose power the warmer it gets, and my icp at idle is 1.0-1.1 when warm, and at half throttle it goes to about 2.1-2.3 and WOT it drops back down to 1.1-1.3. Any thoughts on the problem? im thinking a HPOP leak or ICP sensor.

I was going to change the sensor but wanted to see what everyones thoughts where before. maybe its not the sensor and it is a leak. i dunno im hoping one of you fellas will. Thanks.
Being an 03 you have the good STC fitting but i would look at the rest of the stuff (stand pipes&Bummy plugs)look here it could be the ICPsencer
This may be of some help
Diesel Diagnostic information for Powerstroke 6.0, 7.3, IDI 7.3 and 6.9 L, by Oregon Fuel Injection
Ford 6.0 update parts
2 stroker

06 F350 4x4 PSD Lariat FX4 CC LB
Edge Insight CTS Expandable Pyro
AutoMeter Fuel Pressure Gauge
Updated Fuel Reg. Kit 3C3Z-9T517-AG
Amsoil By-Pass(Amsoil 5w40)
Delo ELC Coolant
Coolant Filtration System
pulling a 14,000 lb Alpenlite 5er
97 F350 4x4 PSD CC LB
PacBrake&ATS converter lockup
3" dp 4" exhaust
TruCool 28,000 lb cooler
Tymar Intake
A piller EGT,Boost,Trans
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