Long crank to start - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 8 (permalink) Old 11-18-2016, 09:17 PM Thread Starter
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Question Long crank to start

Hey guys I have developed a long crank time before engine starts, here is what I have checked so for with Scan Gauge.
IPR-percent is good
ICP-pressure is good
FICM-sync-1
FICM-voltage is 48-49
Batteries are new and turns over fast and runs fine after started.
I checked the drain back valve and it works[have new one ordered], pulled ICP and oil is there. Oil pressure comes up as it normally does and shows no codes.
Any help and ideas would be appreciated

2005 F-250,XLT Extended Cab,2X4 6.0 363 CID DI V8 ENG.Born 03/05 Metalic silver
American Made in Jefferson County KY.
Torque Shift 5 speed Auto. 373 Gears.[Second Owner]
Refinements Are as follows.
ARP 250-402.PDF Head Studs [One at a time]
Blue spring kit
CCV Mod
EGR Cooler ["GONE"]
Fog Light Mod
Greas Zerk in Drive Line Slip Joint
Harpoon mod.
HFCM Valve #6E7Z-9C082-A
Injector Spools [Cleaned for Stiction]
Scangauge 2
Updated Stand Pipes & Dummy Plugs
XDP Coolant Filter Kit
Zoodad Mod
Updated STC Fitting
SCT tuning


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post #2 of 8 (permalink) Old 11-20-2016, 03:33 PM
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IPR & ICP go hand in hand, you say it's good...but what are the readings when cranking?...also is this only upon 1st cold start or does symptom occur warm start up also?

If IPR is high like over 60% when this occurs, then I would suspect a hi-press oil system issue, or a faulty ICP sensor.

If symptom is only during cold start, then I would suspect glow plug system issue or worn injectors or bad batch fuel.

Harry

Jan 03' built 6.0/F250cc4wd trqsft/SCT-tuned by KEM-Performance/Garrett Powermax vg-turbo/blue spring mod/gauges=egt+boost+fuel+SG2/exhaust/airaid intake/DR 4.5 lift/dual bilsteins/315's/greasable ball joints/powerstop/smittybuilt/kc lights/high idle mod/roll-n-lock/Mobil Delvac1 ESP 5W40 with (Archoil AR9100 in the oil) and (AR6200 in the fuel)
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post #3 of 8 (permalink) Old 11-23-2016, 11:04 PM Thread Starter
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Long crank time

Harry sorry for not getting back sooner, I checked IPR cranking and cold it went to 84%before starting and ICP came right up over 500 lbs, And after warming up it starts Quicker and IPR hits 60%.
Is the ICP sensor the same as Back pressure sensor?
Thanks Ed

2005 F-250,XLT Extended Cab,2X4 6.0 363 CID DI V8 ENG.Born 03/05 Metalic silver
American Made in Jefferson County KY.
Torque Shift 5 speed Auto. 373 Gears.[Second Owner]
Refinements Are as follows.
ARP 250-402.PDF Head Studs [One at a time]
Blue spring kit
CCV Mod
EGR Cooler ["GONE"]
Fog Light Mod
Greas Zerk in Drive Line Slip Joint
Harpoon mod.
HFCM Valve #6E7Z-9C082-A
Injector Spools [Cleaned for Stiction]
Scangauge 2
Updated Stand Pipes & Dummy Plugs
XDP Coolant Filter Kit
Zoodad Mod
Updated STC Fitting
SCT tuning


Boob Man=Brotherhood of oil burners
2005 31' Cardinal 5er

Remember if you stop to think,Don't forget to start again

Please Support Our Troops,With Out Them We Would Not Have This.
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post #4 of 8 (permalink) Old 11-24-2016, 09:41 PM
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No problem Ed, I sometimes don't check back in either for awhile.

The 84% IPR cold cranking is a concern.

The 60% IPR warm cranking is also a concern.

The ICP and BackPressure sensors are 2 different sensors, backpress-sensor controls turbo related functions.

84% IPR means the IPR valve is closing all the way to try and build hi-pressure oil...usually means there is a leak somewhere, or ICP sensor is possibly faulty.

I would try a new ICP sensor first, it's easy to replace on your 05' yr model...it's located right on top of the passenger side valve cover.

Harry

Jan 03' built 6.0/F250cc4wd trqsft/SCT-tuned by KEM-Performance/Garrett Powermax vg-turbo/blue spring mod/gauges=egt+boost+fuel+SG2/exhaust/airaid intake/DR 4.5 lift/dual bilsteins/315's/greasable ball joints/powerstop/smittybuilt/kc lights/high idle mod/roll-n-lock/Mobil Delvac1 ESP 5W40 with (Archoil AR9100 in the oil) and (AR6200 in the fuel)
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post #5 of 8 (permalink) Old 11-25-2016, 04:48 AM Thread Starter
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Thanks Harry 6.0 I will try that.

2005 F-250,XLT Extended Cab,2X4 6.0 363 CID DI V8 ENG.Born 03/05 Metalic silver
American Made in Jefferson County KY.
Torque Shift 5 speed Auto. 373 Gears.[Second Owner]
Refinements Are as follows.
ARP 250-402.PDF Head Studs [One at a time]
Blue spring kit
CCV Mod
EGR Cooler ["GONE"]
Fog Light Mod
Greas Zerk in Drive Line Slip Joint
Harpoon mod.
HFCM Valve #6E7Z-9C082-A
Injector Spools [Cleaned for Stiction]
Scangauge 2
Updated Stand Pipes & Dummy Plugs
XDP Coolant Filter Kit
Zoodad Mod
Updated STC Fitting
SCT tuning


Boob Man=Brotherhood of oil burners
2005 31' Cardinal 5er

Remember if you stop to think,Don't forget to start again

Please Support Our Troops,With Out Them We Would Not Have This.
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post #6 of 8 (permalink) Old 12-24-2016, 02:49 AM Thread Starter
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Update on long cranking, turns out the orings were blown on IPR putting back together now will crank it up tomarrow but almost sure it will be OK.
Thanks for the help
Ed

2005 F-250,XLT Extended Cab,2X4 6.0 363 CID DI V8 ENG.Born 03/05 Metalic silver
American Made in Jefferson County KY.
Torque Shift 5 speed Auto. 373 Gears.[Second Owner]
Refinements Are as follows.
ARP 250-402.PDF Head Studs [One at a time]
Blue spring kit
CCV Mod
EGR Cooler ["GONE"]
Fog Light Mod
Greas Zerk in Drive Line Slip Joint
Harpoon mod.
HFCM Valve #6E7Z-9C082-A
Injector Spools [Cleaned for Stiction]
Scangauge 2
Updated Stand Pipes & Dummy Plugs
XDP Coolant Filter Kit
Zoodad Mod
Updated STC Fitting
SCT tuning


Boob Man=Brotherhood of oil burners
2005 31' Cardinal 5er

Remember if you stop to think,Don't forget to start again

Please Support Our Troops,With Out Them We Would Not Have This.
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post #7 of 8 (permalink) Old 12-25-2016, 06:20 PM Thread Starter
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IPR orings cured long crank problem
Thanks Ed

2005 F-250,XLT Extended Cab,2X4 6.0 363 CID DI V8 ENG.Born 03/05 Metalic silver
American Made in Jefferson County KY.
Torque Shift 5 speed Auto. 373 Gears.[Second Owner]
Refinements Are as follows.
ARP 250-402.PDF Head Studs [One at a time]
Blue spring kit
CCV Mod
EGR Cooler ["GONE"]
Fog Light Mod
Greas Zerk in Drive Line Slip Joint
Harpoon mod.
HFCM Valve #6E7Z-9C082-A
Injector Spools [Cleaned for Stiction]
Scangauge 2
Updated Stand Pipes & Dummy Plugs
XDP Coolant Filter Kit
Zoodad Mod
Updated STC Fitting
SCT tuning


Boob Man=Brotherhood of oil burners
2005 31' Cardinal 5er

Remember if you stop to think,Don't forget to start again

Please Support Our Troops,With Out Them We Would Not Have This.
deereman39 is offline  
The Following User Says Thank You to deereman39 For this addition to TDG:
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post #8 of 8 (permalink) Old 01-01-2017, 07:04 PM
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Awesome, good find!

Harry

Jan 03' built 6.0/F250cc4wd trqsft/SCT-tuned by KEM-Performance/Garrett Powermax vg-turbo/blue spring mod/gauges=egt+boost+fuel+SG2/exhaust/airaid intake/DR 4.5 lift/dual bilsteins/315's/greasable ball joints/powerstop/smittybuilt/kc lights/high idle mod/roll-n-lock/Mobil Delvac1 ESP 5W40 with (Archoil AR9100 in the oil) and (AR6200 in the fuel)
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