FICM ? Need help!!!!!
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Mountain Pass
Joined: Jul 2007
Posts: 136
Likes: 0
From: Hell with a zip code PHX
FICM ? Need help!!!!!
I just installed a new egr cooler and oil cooler followed all the steps needed with success for a rookie. truck started fine ran it down the road no runs no drips no errors I thought.
I shut the truck down and went back out to it an hour later no start cranks good but no fire ugh.
I pulled out the OBD II and the only code showing was for glow plug controller. Like a dummy I cleared the codes thinking it would give me a new set nope rookie as I said.
needless to say bought a new glow plug controller and still nothing im beating my head against the wall trying to figure this out.
does any one have any ideas?
Can I have my ficm bench tested to see if its good or does it have to be diagnosed on the truck?
I shut the truck down and went back out to it an hour later no start cranks good but no fire ugh.
I pulled out the OBD II and the only code showing was for glow plug controller. Like a dummy I cleared the codes thinking it would give me a new set nope rookie as I said.
needless to say bought a new glow plug controller and still nothing im beating my head against the wall trying to figure this out.
does any one have any ideas?
Can I have my ficm bench tested to see if its good or does it have to be diagnosed on the truck?
Lead Driver
Joined: Mar 2010
Posts: 5,504
Likes: 256
From: Woodbridge, Ontario, CA
Any time you "open up" any part of the high pressure oil system it's not uncommon to have extended engine cranking starts until the high pressure oil system primes back up. How long did you run the engine for after the repair? That said, do you have access to a scan tool to monitor live data, particularly ICP psi, ICP volts and IPR duty cycle % while you crank the engine over? Failing that, you are shooting in the dark with guesses. Why do you suspect the FICM is faulty? Are you seeing FICM_M voltage low?
Thread Starter
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Mountain Pass
Joined: Jul 2007
Posts: 136
Likes: 0
From: Hell with a zip code PHX
Any time you "open up" any part of the high pressure oil system it's not uncommon to have extended engine cranking starts until the high pressure oil system primes back up. How long did you run the engine for after the repair? That said, do you have access to a scan tool to monitor live data, particularly ICP psi, ICP volts and IPR duty cycle % while you crank the engine over? Failing that, you are shooting in the dark with guesses. Why do you suspect the FICM is faulty? Are you seeing FICM_M voltage low?
Truck stalled coasted to a stop put in park started right back up. Drove it home saw the cac tube put it back on tight clamp started truck ran fine.
Went in for about an hour came out to take it on a longer drive wouldn't start and hasn't since.
Only scan tool I have is OBD II
Will this run test for ICP&IPR if so how do I run that test ?
Reason I questioned ficm I had one go bad before so it was just a currious question
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
if your OBD II scan tool will show - monitor FICM main volts, FICM vehicle volts, FICM logic volts and battery voltage.
FICM Main volts should = 47-48 V
the rest should equal 12-13+ volts (whatever your alt is putting out)
FICM Main volts should = 47-48 V
the rest should equal 12-13+ volts (whatever your alt is putting out)
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
Here is s good document that outlines the starting requirements for the 6.0 L. Page 2 shows the starting requirements and possible no start causes:
http://oregonfuelinjection.com/pdf/f...diagnostic.pdf
http://oregonfuelinjection.com/pdf/f...diagnostic.pdf
Former Vendor
Joined: Feb 2010
Posts: 1,803
Likes: 5
You've already got some really good feedback on this thread already, but the short answer is that there are loads of things that can cause a no start. Really, testing the FICM with a digital volt meter will get you by to largely rule the FICM in or out, but having access to live data to read injection control pressure, Injection Pressure Regulator Duty Cycle, FICM Main Power, and a host of other things would only serve you well.
A good writeup on how to check the FICM can be found at 17. Can I test my FICM to ensure that it is the culprit?.
Hope this helps!
A good writeup on how to check the FICM can be found at 17. Can I test my FICM to ensure that it is the culprit?.
Hope this helps!
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Lead Driver
Joined: May 2014
Posts: 6,545
Likes: 13
From: Virginia Beach VA
Oil cooler changes often lead to clogged IPR valves. You need to have the live data to see the pressure the system is generating. Scan Gauge2, Torque Pro to read it, just a code reader won't do.
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Former Vendor
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Thread Starter
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Mountain Pass
Joined: Jul 2007
Posts: 136
Likes: 0
From: Hell with a zip code PHX
Thank you for all the help gentlemen found the problem with all your help ficm was good .
Turns out my issue was a bad fuel gage showing 1/4 tank when it was actually empty .
Starts right up now without hesitation .
I'm a true diesel rookie here and this site is a tremendous help.
Now off to figure out why battery light comes on during acceleration ugh.
Turns out my issue was a bad fuel gage showing 1/4 tank when it was actually empty .
Starts right up now without hesitation .
I'm a true diesel rookie here and this site is a tremendous help.
Now off to figure out why battery light comes on during acceleration ugh.
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
Your getting a Battery light you need to check Cables maybe ones loose
I had a Ground wire cause me greif once for days a Finger tight bolt wasn't enough for good connect since you did just have it apart
Ckeck
FICM LP
FICM VP
WOrth it to see IPR% ICP to make sure the job was Clean Time for Gauges
High ICP with Low IPR% says the IPR screen Plugged
I had a Ground wire cause me greif once for days a Finger tight bolt wasn't enough for good connect since you did just have it apart
Ckeck
FICM LP
FICM VP
WOrth it to see IPR% ICP to make sure the job was Clean Time for Gauges
High ICP with Low IPR% says the IPR screen Plugged
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