Leaving the movies Saturday night turn on fine and made it about 1 mile down the street truck died runing had to get it towed back home morning put new batteries all truckdoes is crank but won't start need help

 

Welcome to the. I moved your thread here as you are more likely to get answers from fellow f250 owners.

What else have you checked?

 

Sudden death of an 05+ 6.0 is commonly the STC fitting. Any oil coming out of it, off the back of the motor/ front of the trans?

You need a scanner to read the injector control pressure (ICP) and injector pressure regualtor (IPR ) duty cycle:
https://www.ford-trucks.com/forums/1...eral-info.html

 

When you are cranking on it, does the oil pressure gauge on the dash come up? If that doesnt move, the truck will never start.

Have you pulled the fuel filter cap off and made sure you were getting fuel up there? Also, how much fuel is in the tank?

 

I understand what you're getting at here, but two points: the low pressure oil switch 'opens' (aka reads normal on the gauge) at 6-7psig, and the truck won't start with less than 500psi of high pressure oil pressure as read by the ICP sensor.

I'd agree with the theory that eventually no LPO = no HPO, but in practical terms for trouble shooting a no-start the LPO switch gauge doesn't impact starting directly, and is a poor indicator of both LPO and HPO. Since it's a one-wire sending unit wired direct to the dash gauge and no where else the truck will run with the gauge reading zero if there's a switch or dash problem, and since it doesn't relay any HPO information the truck can not start with it reading full.

No cranking RPMs on the dash does point to a sensor issue that will cause a no-start though. That's about the limit of what the dash tells you that's useful.

 

today i took the oil cap and fuel filter caps off. Both of them are working

 

I put the scanner on it I have. No codes pulled both caps off the oil and disiel filter both are working have it some ether and all it did was Turn on but it was weak and died out like 15 seconds

 

yes did that today both are working good I piut some ether and it started up weak but it did for 15 secs oil reading was in the half point n I have. Half of tank of disiel

 

Hopefully this will get towed to the 6.0 forum, but you need live data. Get an elm327 dongle and forscan or torque pro for your phone. Set you back less than $50 and will save you thousands.

Don't crank on it if your batteries are low (you will fry your ficm).

You can also try unplugging your icp sensor on the valve cover and seeing if it starts. But you likely need stc fitting, stand pipes, and dummy plugs as a start.

Oh, don't use ether to start these engines... Could cause damage

Richard

 

where can I purchase the scanner.

 

The elm327 is sold on ebay. It is Bluetooth and will link up to your phone, notepad or laptop. forscan can also be purchased online real cheap. It is the program for reading the data from your engine.

 

thanks i was going to test the voltage on the fcim but it was pouring today all day

 

I got mine from amazon. search for elm327 or forscan for one to use with a laptop.

This is one of the nicer ones that almost always works... but it's one of the higher priced ones:

But most of the larger ones work fine too... just dont get a mini... they tend to have more issues

Richard

 

b




So this help me read my oil and gas pressures ?

 

Well... There is no fuel pressure sensor but if your fuel Bowl is filling and you have the blue spring update, you likely have no fuel issues.

It will allow you to see the high pressure oil system values and several other key values that will usually tell you what's wrong.

Richard

EDT: also, post your location or update your profile... There may be a local that can help.