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    Question Hard to start & rough ideling when cold.

    Personally I would not run an oil w/ Slick 50 in it. The 6.0L depends on specific oil and oil properties. Too much risk for oil additives to cause problems. Glad things are better for you.
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    Question Hard to start & rough ideling when cold.

    I agree - the reflash of the processors really does help!! Also, you can check your FICM voltage - if it is under 47 V, there are many posts on various forums on how to fix it yourself (re-flowing the solder in several key areas).
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    Help Needed Oil filter cap split open

    Was the oil filter an OEM or aftermarket filter/cap combo? To me, it sounds like it could be something in the HPOP.
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    Cheap F.Pr. Mod

    I will practically guarantee you that your stock pump can get to 100 psig. That is the design. If it can not produce that pressure, your pump is failing or there is a restriction. It comes down to believeing them or believing Ford. I will repeat - Ford specifically states in literature...
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    Cheap F.Pr. Mod

    I was at 85 psig at idle. I cut a few coils off and was still at 80 psig. GDS will say that they have worked with international and that the injectors can take the high pressure. I did not contact GDS, but someone else (on another forum) did. They (GDS) do not believe Ford (or their...
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    Cheap F.Pr. Mod

    The GDS spring takes you way over the 75 psig that Ford recommends as the max pressure for the injector o-ring protection. I tried it. I even cut off a few coils and it was still way high. The 6mm BB mod works quite nicely in most cases (took me from 43-50 psig range to 53-60 psig range). I...
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    injector 8 keeps going out

    Possibly low fuel pressure since it is at the end of the fuel rail. The fuel pressure regulators often times need the spring replaced (or shimmed). A fuel pressure gauge is a VERY handy thing to have.
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    04 6 leaker leaking

    Drive the truck and get it warm. Park on a downslope (front end lower than the back end). pull the EGR valve and see if there is coolant in the intake.
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    04 6 leaker leaking

    It is not wise to drive much w/ a leaking EGR cooler. It could hydrolock the engine. The EGR cooler failure probably comes from a plugged oil cooler (coolant side). They both need replacing. Also - do not use a block sealer - won't help, could cause other problems.
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    Fan kickin temp?

    I do think 218 is too high to be running continuosly. As dmcvey_1999 said, keep an eye on coolant level (and on the exhaust).
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    Fan kickin temp?

    Engine temperature is not the only parameter that the PCM monitors to determine cooling fan operation. This is the reason that you will see some variation in engine temperature as it correlates to fan operation. The operation/description of the FSS (Fan Speed Sensor) from the PC/ED manual has...
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    Oil Filter

    Sounds like you are using aftermarket filters. Don't! Use the OEM and you do not need the plastic "adapter".
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    How much oil?

    FYI - Your entire "dry fill" quantity is 18 quarts. 18 qts is not documented any were - but it is what the engine takes - period. The oil pan takes 14 qts to fill. The filter takes 1 to 1 1/2 qt to fill. The high pressure oil pump reservoir takes 1 to 2 qts to fill. The oil cooler takes...
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    6.0 mystery problem

    ;tu
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    Help Needed High oil temp

    Ford revised the "temperature difference" limit to 15 degrees (down from 25 degrees).
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    Question early vs. late injectors, can you mix?

    Ford states NOT to mix them. 3C3Z-9E527-AA (Original C91 injector) was replaced in 2003 with part number 3C3Z-9E527-ABRM (C94) and then later with 3C3Z-9E527-AE (C95). These part numbers were for engines built before 9/22/03. The latest injector number is 4C3Z-9E527-AA (C2 or C92) for...
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    power steering issue

    I just installed a Magnefine filter in the hydroboost return line to the power steering resevoir. I have noticed a very slight "buck back" when I first hit the brake. I am assuming that it is due to the extra restriction. I will change the filter in a month or so and then cut it open to see...
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    Tsb 8-4-07

    Thanks for the welcome!
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    Tsb 8-4-07

    It is the Turbo cleaning / replacement TSB. It has been superceded by TSB 08-16-13 TSB 08-16-13
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