All right guys, I'm having trouble getting my truck to start again. I have read dozens of no start threads, and still can't find the answer. Friday night my wife left the driver's door open all night. Truck was running fine on Friday, would not start Saturday morning. Called a tow company to give me a jump thinking it was just dead batteries, truck still wouldn't start. Here's what I've got so far:

2004 (late build) F250 with egr delete and upgraded FICM
Injector buzz test using Forscan came back good/ no fault
2 DTC's: 0405 (no egr) and 0611 (upgraded FICM)

From Torque app:
FICM Sync= Yes
FLP= 12.0
FV= 12.0
FMP= 54.5
VBATT= 12.2
IPR KOEO = 14.7% Cranking= 49%
HPOP KOEO= 0 Cranking= 1415
REV KOEO= 0 Cranking= 272

I wore out the batteries trying to troubleshoot, so today she has 2 brand new batteries and a new alternator. They all 3 tested bad at Auto Zone. I also changed the oil, filter, and fuel filters. Always Motorcraft filters. I wasn't due for an oil change yet, but erred on the side of caution. Oil is Rotella T6 5w-40. I get good strong cranks where it sounds like it is about to catch. I can hear my fuel pump running strong, and have watched it full the upper bowl at key on. I've checked everything I could think of. This is my daily driver and family's only vehicle right now. I need to get her back on the road. Thank you in advance for any suggestions.

 

What are your "fuel pulse width" and "mass fuel desired" values when cranking?

Sometimes, you can have FICM sync without having cam/crank sync. I like to see both values posted. Could you also post can/crank sync when cranking?

Lastly, post the v-reference voltage (KOEO and cranking).

 

Thanks for your response bismic. Here ya go.

Vref KOEO= 5 Cranking= 5
InjPW= 2304
Mfuel= 35.8
C&C Sync= 1

 

I was reading in one of my other no start posts (from 2 years ago) and wanted to update some information from that.

As of 5/18 I have:

Upgraded FICM
Blue spring upgrade
New fuel pump
New fuel pressure regulator

I had to order a new adaptor for the fuel pressure gauge, but that won't be here until Thursday.

 

Wrong post.

 

You have a real "stumper". Seems like the FICM is working ok. I am beginning to wonder about the cam sensor. Sometimes it can go out and cause a no start even though you have Sync.

Another uncommon possibility is an injector coil shorted out. That should throw a code though.

 

Is there anyway that I can confirm/ eliminate the possibility?

 

I have a procedure somewhere on checking the cam sensor. Let me "dig it up".

 

I appreciate your time and helpfulness as always!

 

No problem, I only hope it helps.

here is one thread on it:
https://www.ford-trucks.com/forums/9...nsor-test.html

Here is the document I was thinking of:
https://www.ford-trucks.com/forums/a...4&d=1350773182

 

I will check on those tomorrow. I won't have enough daylight tonight. I'm in MO now, moved out of Colorado a few months ago. Are there any other possibilities to look into?

 

BTW - you have done a good job troubleshooting it so far. Sometimes the issue is just plain hard to pin down, it wouldn't be a 6.0L if it didn't act up every once-in-a-while!

 

Had the same issue on my brothers truck last month. Ended up being a cam sensor... but he was in a bind and stranded. If you are in a similar situation and need the truck RIGHT NOW... a little starting fluid will typically get it up and running. His ended up running for a few weeks before the issue popped up again for us to fully diag.

 

Was he not getting an rpm signal? That is usually the tell-tale sign of a crank sensor acting up.

 

Edit... it was a CAM sensor. And he had rpm signal. Actually we could not get it to act up. No CEL. And his SCT didn't pull any codes. But we eventually got a CAM code with the IDS.