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Old 07-25-2011, 08:17 PM
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04 ford 6.0 won't start and turbo?

my brother has a 04 f350 manual with 6.0 bone stock. the first problem he is having is every now and again his truck won't start. it will turn over and everything but will not fire. he started out replacing the cam sensor the first 3 times it did it, seemed to do the trick. the last time his truck did it he let it sit for the day he came back home and it started rite up. so the last few times he let it sit for a while then it would start. ford is saying it is the computer going out or a short.

second problem his turbo is not engaging till he almost redlines 3000rpms and hes only getting about 5-7 pounds of boost. checked all boots and everything for leaks nothing found. turbo gone?

any help would be great. hes wanting to get some ideas before he dumps a lot of money in a computer.
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Old 07-26-2011, 04:45 PM
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See the links in my signature for no start check list. If it does it when its hot this points to a internal high pressure oil leak. The turbo issue sounds like it needs a good cleaning as the vanes are stuck closed.
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Old 07-26-2011, 07:27 PM
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thanks for the info. every time it happens he hooks a scanner to it. the only code is cam sensor error. it doesnt matter if it 0 or 110. it just does it randomly .im relaying everything to him. he lives a few hundred miles away no internet. trying to help him the best i can. I'm pretty sure he is just gonna replace the turbo and put on an exhaust kit on. he is checking out everything you relayed me.
thanks again for the help.
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Old 07-27-2011, 06:19 AM
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First thing I would do is check the FICM voltage while running and while cranking. If it falls below 46v the FICM needs to be replaced.

Ford 6.0 FICM Video - Ford 6.0 FICM Repair | Circuit Board Medics

For the turbo it sound like one of 3 things. There is an exhaust leak in the up pipes or the Y pipe to the turbo not allowing it to spool. A malfunctioning VGT solenoid, or most likely the VGT vanes are sticking and the turbo needs to be removed and cleaned.
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Old 07-28-2011, 08:04 PM
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he did say you can smell exhaust in the cab tonight so i told him to check out what you said.
for what i found out for him he is going to replace:
he is going to check out the ficm.
egr cooler
y pipe
up pipes
turbo

what after market do you recomend.
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Old 07-29-2011, 04:27 AM
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These trucks also need to have exhaust header gaskets after some point. They don't have any from the factory, and the these corrosive effects create leaks. I have this same exhaust smell, and it's small leaks at the headers
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Old 07-29-2011, 02:09 PM
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Quote:
Originally Posted by SixStringMadness View Post
These trucks also need to have exhaust header gaskets after some point. They don't have any from the factory, and the these corrosive effects create leaks. I have this same exhaust smell, and it's small leaks at the headers
Yup, when I was lying underneath mine I thought I could see soot in small amounts around some of the exhaust manifold ports.
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