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Old 07-19-2013, 06:47 PM
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long crank to start

I have a 2006 6.0 seems life lately it has been taking longer to start. I let the truck sit for a day and it takes 3 to 5 sec to start but seems better after running already replaced my battery's tested my ficm my multi meter showed 50 volts the temp while trying the test for he ficm was 75 degrees my voltage goes down when I turn the key on for the glow plugs and after awhile the battery voltage goes back up when the glow plugs turn off what else could it be any ideas
Thanks matt
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Old 07-19-2013, 07:02 PM
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Are you using the correct motorcraft oil filter and cover? What oil are you running?
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Old 07-19-2013, 07:11 PM
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I'm using rotella t6 with about 20000 miles on it when I did the oil change I replaced all the filters with Napa filters I think I'm gonna get ford filters tomorrow
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Old 07-19-2013, 08:18 PM
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I would definitely get the motorcraft filter and cap in it, don't just use the carquest cap you need to have a motorcraft cap with motorcraft filter otherwise it takes longer to build oil pressure that allows the injectors to work.
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Old 07-20-2013, 08:06 AM
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Quote:
Originally Posted by Ford_Fan1 View Post
I would definitely get the motorcraft filter and cap in it, don't just use the carquest cap you need to have a motorcraft cap with motorcraft filter otherwise it takes longer to build oil pressure that allows the injectors to work.
I have the same long start problem and it is not the oil filter cap since mine is not used. Any other suggestions?
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Old 07-20-2013, 08:29 AM
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If it is not your FICM or your oil filter/cap the only other things that I can think of would be to use some lower viscosity oil and check you battery voltage under load. Right now I am using 15W40 oil and I think that causes mine to crank slightly longer so at my next oil change I will probably go to a lower viscosity oil. Also, when was the last time that your fuel filters were changed?

Last edited by Ford_Fan1; 07-20-2013 at 08:47 AM.
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Old 07-20-2013, 08:53 AM
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Does the motercraft oil filter come with a new cap I have heard that there are two different height caps for different year trucks
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Old 07-20-2013, 09:14 AM
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No, you have to buy the cap seperately. The PN is 3C3Z 6766 CA I just bought one about two weeks ago. The different cap height you are referring to is the difference between the carquest cap and the motorcarft cap but all 6.0 should take the same oil filter cap.
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Old 07-20-2013, 09:18 AM
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Is the part number on the cap I bought the truck used and I'm not sure if it is OEM or not also before I forget is 51 volts OK for a 48 volt ficm
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Old 07-20-2013, 10:34 AM
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Well just looked at the filter cap it has Napa part numbers on the side gonna head to ford and pick up a new filter and cap I'll let you know how it goes
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