Weird. My truck just began to not start sometimes. If I try to crank it up in the morning it won't start but 6-7 hours later it will start and after I park it for the night it does the same thing the next day. What could be the problem?

 

Welcome to FTE ReggieR.

Please post some information on your truck if you don't mind. It will help you get the proper help (year model, and mods, mileage, most recent fluid and filter change info, etc)

 

My truck will start in the late evenings when it is hot but will not start in the mornings when it is cool. What could be the problem?


SPECS:
2004 F350 Dually
Diesel Powerstroke
15-40 motor oil
ford motor craft coolant
oil & filter change in april 09
168,000 miles

 

Welcome to FTE ReggieR

From your profile the truck is a 2004, we have a familiar situation in this thread if you want to read through. Click here

 

Thanks Maxium 4x4
I have had the crank sensor replaced and EGR valve replaced. I will replace the connecting harness and see if that will fix it.

 

If you think it is the ICP as in the thread I mentioned, just unplug it and see if it will start.

 

Still can't find problem with truck. Changed everything. Could it be the glowplug? What happens if the glow plug is not functioning? Could this cause the truck to not start?

 

No start could be:
injector o-ring failure
air in the fuel
no fuel flow
bad Fuel Injection Control Module (FICM)
high pressure oil rail o-ring failure
high pressure oil stand pipe o-ring failure or the pipe itself
the high pressure oil pump (HPOP) stc fitting (if so equipped)
the high pressure oil branch tube
a stuck or bad injection pressure regulator (ipr)
a weak HPOP pump, or
the injection pressure control (ipc) sensor
a bad PCM (computer)
wire chaffing on key components.
I am sure there are more potential causes.

Regarding the fuel flow potential - do you use Motorcraft fuel filters and are you sure you do not have some air in the system? Is the upper fuel filter bowl filling up properly when cranking?

FYI - in the high pressure oil system you must develop enough oil pressure (500 psig), AND the ICP needs to detect it, or it will not start.

Your issue seems to be that it starts sometimes and not others.

Sometimes a high pressure oil leak will cause a no-start when HOT. Then it will start cold. This does not sound like your problem.

Can you take it somewhere to get the codes read (or borrow a code reader)?

We really need more info to help (IMHO).

 

You might want to read these over and inspect for wiring problems:

<TABLE style="WIDTH: 568pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=757 x:str><COLGROUP><COL style="WIDTH: 568pt; mso-width-source: userset; mso-width-alt: 27684" width=757><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 568pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17 width=757>Wire Chaffing Locations</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 568pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=757>http://www.thedieselgarage.com/forums/attachment.php?attachmentid=17301&d=1208412696</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 568pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=757>http://www.forddoctorsdts.com/articles/article-05-11.php</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 568pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=757><TABLE style="WIDTH: 568pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=757 x:str><COLGROUP><COL style="WIDTH: 568pt; mso-width-source: userset; mso-width-alt: 27684" width=757><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 568pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=757>http://www.forddoctorsdts.com/articles/article-05-13.php</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>

 

ReggieR -

This is a fairly detailed video on a hard-start / no-start condition:

mms://multimedia.ford.com/seopts/Tech_3_256klarge.wmv

 

Hard-Start / No-Start Diagnostic Checklist:

http://www.fordtechservice.dealercon...iagnostic2.pdf

Hard Start/No Start Diagnostic Procedures

http://www.fordtechservice.dealerconnection.com/vdirs/vehicles/diesel/schematics/05_Diesel_sheet.pdf