03 6.0 rough idle, low compression, & tick noise - Diesel Forum - TheDieselStop.com
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6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

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Old 08-26-2013, 02:33 PM   #1 (permalink)
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03 6.0 rough idle, low compression, & tick noise

need help! i have a 2003 f-250 6.0 that ran fine when i went to work and when i got off i went to start the truck and it ran rough almost like it was missing and there is a ticking noise to it but its not an exhaust leak. we took it home and did a voltage test on the ficm it had 48 volts with key on but when you crank it over it drops to 27 volts. it also threw a code for contribution/balance fault on cylinder six. i put a new ficm on it and a ford diesel tech said to put an injector in it so i did all that and had the truck hauled to the dealership to have the ficm flashed. when i went to get the truck they told me i needed a new motor because i hydro locked my motor and bent a connecting rod and was down 10% for compression in cylinder 6 & 8. i have the egr delete in it other than that its all stock. i didnt think it could hydro lock if it has the delete in? and the tick noise doesnt seem loud enough to be a bent connecting rod. i've drove the truck for 8000 miles with the egr delete on and the egr cooler wasnt clogged when i took it off. im taking it to another dealership to get looked at because i really doubt i need a new motor at 110,000 miles.
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Old 08-28-2013, 03:26 PM   #2 (permalink)
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Had a #6 injector put in mine a few years back the dealership botched it and either dropped something in the cylinder or the new injector blew its guts into the cylinder. I ended up with the same ticking and loss of power and even some smoke, 2000 miles later I was having the engine rebuilt, something was in the cylinder and it passed through the valve screwing its seal to the head up, destroyed my turbo and I had bad scaring on the cylinder wall.

Between the two dealerships I did an oil change and noticed a very strong fuel smell in my oil, this tipped me off that something wasn't right.
Attachment 27401
I know this information isn't very helpful but I felt you should be aware of another possibility and always scope your cylinders when change injectors, you never know what you'll find.
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Last edited by 05_HARLEY_F250; 06-17-2014 at 06:27 PM.
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