DBarsotta

To start, I am an international trucks technician. Second, that means I know diesel and I know Big trucks. I DON"T KNOW THESE little bastards that well.

Here is my problem. My wifes 2014 F150 STX 5.0L, she called me a couple months ago "My truck won't start, I am stranded", "Ok as it not start what is it doing?" was my response. Answer "Not Starting - What the $%&# do you mean?"

So I tell her to try and start it so I can hear. Of course it starts. Fast forward to last week, she leaves for work and sure enough won't start. I try and she just cranks and cranks and if you let go of the key it keeps trying until you turn the key to "off". I tried that a couple more times, finally leave the truck and drive her to work. That night I try again, still no start, I climb under the truck and check all the wires and connections, all good. Try to start it fires right up...WTF right?

Do some google research and find a lot of issues that cause this. The most common (and cheapest) was the Fuel Pump Driver Module, (cheaper as in free - Uncle has the hook up there) Change that and restart the truck several times. It works right up until last night. I am in Arkansas at a Dealer training them and she tries to leave the daycare and sure enough it won't start again, this time after 5 min it started.

So I have 3 occurrences:

First couple months ago lasted 5 min (I am assuming she had same issue then).
Next the other day lasted all day 12+ hours.
Again yesterday lasted maybe 5 min.

I have ordered an adapter for FORscan and got the software. I am hoping there are some codes that will lead me in the right direction. Or if it does this again I might be able to look at live data to see an issue.

My question is. I see it is a common issue with several causes. I'd like to know if anyone has had this and what they did to diagnose the problem. At least with International trucks I know the software and can read all the sensors.

Please can anyone offer some insight on this issue and other common possible causes and/or tests-data I should be looking for when I get the adapter.

Thank you

BTW -- Don't get my frustrated technician comments fool you, I love the little Bastard. It just frustrates me because for 20 years working on Tractor Trailers and such, It was common to be able to access the sensor readings, even with a basic reader.

SoonerLS

SoonerLS