hot start problem please help
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Junior User
Joined: Oct 2011
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hot start problem please help
So, I have a 2007 f250 with the 6.0.
When she's cold she starts fine but runs rough like she has a miss. When she warms up the miss goes away and it runs pretty good. But if I shut it off it won't start for about an hour or so.
ICP sensor has been replaced.
FICM is putting out 50v
When she's cold she starts fine but runs rough like she has a miss. When she warms up the miss goes away and it runs pretty good. But if I shut it off it won't start for about an hour or so.
ICP sensor has been replaced.
FICM is putting out 50v
Senior User
Joined: Nov 2015
Posts: 451
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It's been a long while since I've had a 6.0. Are you throwing any codes? I will assume the engine cranks but does not fire. What kind of pressure is your HPOP pushing to the injectors? I am by no means a certified mechanic, but I had some similar symptoms with an '04. Also, what oil are you running?
Laughing Gas
Joined: Dec 2005
Posts: 972
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From: Linden, Ca.
The first issue, cold rough running, is prolly a stiction issue. Try some of the oil treatments on the market. There are several that are popular here. Archoil and Hot Shot's being some of the more popular.
The second issue is prolly either your dummy plugs or your STC fitting at the HPOP going bad. You need to get some way of checking oil pressures during cranking and running to help diagnose your issue. There are some programs available at the google app store if you have an android phone and then get a bluetooth OBDII dongle.
Bruce
The second issue is prolly either your dummy plugs or your STC fitting at the HPOP going bad. You need to get some way of checking oil pressures during cranking and running to help diagnose your issue. There are some programs available at the google app store if you have an android phone and then get a bluetooth OBDII dongle.
Bruce
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Joined: Oct 2015
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Its probably the internal oil pressure line that supplies pressure to operate the injectors. Once the oil thins due to normal running oil pressure drops a bit.
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Well...I just bought a program for my laptop for the obd2 so I can truly test all the systems. So when I get back from deployment I'll post my findings...if any.
But please keep giving me things to check because I'm writing them down as a check list for when I get home.
It is very much appreciated!
But please keep giving me things to check because I'm writing them down as a check list for when I get home.
It is very much appreciated!
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More Turbo
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