[jmw.werne]

I have had a crank-no-start off and on for about a year now. I have had a new starter, new heads (pre-assembled) put on, I have studded it, replaced the stand pipes and dummy plugs, oil cooler, re-sealed all 8 of my injectors as well as the HPOP. I have aftermarket (AutoZone) ICP Sensor and IPR Valve which are reading proper values...I had gotten the truck going again, this time with horrid fuel economy and ran fine for a month. Now I am back where I started and have a crank-no-start. Any and all suggestions would be appreciated!

-J

 

[NoRalPh]

Suggestion #1..... WHAT YEAR AND ENGINE IS IN YOUR TRUCK!

 

[diablos30]

first suggestion is buy oem sensors

second is to watch this

third is you'll probably end up going though what you re-sealed as there is likely a hpo leak there, but air test to confirm

 

[jmw.werne]

Suggestion #1..... WHAT YEAR AND ENGINE IS IN YOUR TRUCK!

04.5 6.0 PowerStroke.

first suggestion is buy oem sensors

second is to watch this

third is you'll probably end up going though what you re-sealed as there is likely a hpo leak there, but air test to confirm

OEM Sensors are next...just befuddled that I have all values reading properly with aftermarket ones in there and still nothing.

 

[jokester00]

OEM sensors are definitely preferred, but they may/may not be the issue. Do you have any stored DTC's? Need data for the following:
Fuel Pressure (need an aftermarket sensor for this)
ICPv
ICP
IPR%
RPM
Battery V
FICM MPower
FICM LPower
Fuel Pulse Width (also called injector pulse width)
FICM sync
CAM/CRANK sync (also called sync)

-jokester

 

[jmw.werne]

OEM sensors are definitely preferred, but they may/may not be the issue. Do you have any stored DTC's? Need data for the following:
Fuel Pressure (need an aftermarket sensor for this)
ICPv
ICP
IPR%
RPM
Battery V
FICM MPower
FICM LPower
Fuel Pulse Width (also called injector pulse width)
FICM sync
CAM/CRANK sync (also called sync)

-jokester

Everything but FICM Sync

 

[bismic]

Please post actual values (numbers) for the PIDs @jokester00 listed.

Owning a 6.0L pretty much requires a person to also own a good scan tool (ForScan is what you need). Torque Pro would be my second choice.

 

[jokester00]

Everything but FICM Sync

Need real numbers for sure.

See page 10 of this link:
6.0L FICM Guide.qxd (mid-atlanticema.org)

-jokester

 

[jmw.werne]

Need real numbers for sure.

See page 10 of this link:
6.0L FICM Guide.qxd (mid-atlanticema.org)

-jokester

Sync - 0
FMP - 48.5
ICP - 2
IPR - 80.7

 

[jokester00]

Is the SYNC value for Cam/Crank Sync or FICM sync? ICP does not compute...2 doesn't make sense. Please post numerical values for everything i've listed above along with any stored DTC's.

-jokester

 

[bismic]

Is the SYNC value for Cam/Crank Sync or FICM sync? ICP does not compute...2 doesn't make sense. Please post numerical values for everything i've listed above along with any stored DTC's.

-jokester

I get tired of asking two or three times for data ............. Not sure that the 6.0L is the right vehicle for the folks that don't post the data requested.