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Ask Chris (aka-Moose) Your Own Question
Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 48729
Experience:  16 years of experience
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2004 Ford F650 with 6.0L will start and run and die. It

Customer Question

2004 Ford F650 with 6.0L will start and run and die. It trips the ECM relay.
Submitted: 2 years ago.
Category: Medium and Heavy Trucks
Expert:  Chris (aka-Moose) replied 2 years ago.
Any trouble codes stored?
How often does this occur?
Does it restart easily?
Customer: replied 2 years ago.
No codes
Varies from 5-10min to 20-25min unless we pull the crank inhibitor relay and it will run for an hour.
Won't restart unless we swap the ECM relay or wait 2-7min.
Expert:  Chris (aka-Moose) replied 2 years ago.
I need to confirm the file below does show the relay your having issues with.
When the truck stales, if you immediately remove the ECM relay are pins 30 and 85 showing battery voltage?
I suspect its pin 86 with the issue. With the key on, does it show a ground, it should?
Customer: replied 2 years ago.
After it shut down after an hour and a half there was no power to relay 209. The relay was warm to the touch and this time swapping relay's didn't allow it to restart right away.
Customer: replied 2 years ago.
Where is pin 86?
Customer: replied 2 years ago.
Pin 86 has ground only with key on
Expert:  Chris (aka-Moose) replied 2 years ago.
Okay so it does not have power to the relay.
This relay should have power all the time, for it not to have power when it shuts down would mean the fuse box has an issue or fuse 20 is making poor contact. I have attached this circuit diagram below.
You want a excellent 5 star answer & I would like to be rated the same for providing it. Consider I don't know your skill level & I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies. Try your best to respond with good detail so I can do the same. I normally log in at 3pm and work late. A rating is required. Your rating me, what I type. I am not an employee of this website, nor have control over the fees or the time it took to get a response. If you rate negative or not at all you still paid, but I get nothing. I want you pleased with me and my efforts, so let me know if your experience here has come up short.
Thanks Chris