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Ford 6.0 Diesal Problems?

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Old Dec 2, 2003 | 11:44 AM
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Question Ford 6.0 Diesal Problems?

I have a 2003 F-250 6.0. Do not know when it was manufactured. I took my truck in for the Irractic Idle problem. They reprogrammed cpu and replaced O2 sensor. I got it back and thought I noticed less power and worse gas mileage. Mentioned it to the Service Manager and he said I was probable wrong and the reprogram had no adverse effects. I have been reading all the stuff posted and and do not know what I should do. I do not want to be stuck with a poorely running, problem child for a truck. Their is still a little bit of idle problem but nothing like what it was before. Can anyone give me some advice. Also, where do I find the Water fuel seperator and do I need to change fuel filter at the same time. My service dept says I do...my old diesal I did not have to change fuel filter at same time. By the way.. Ihad the reprogram done in the end of OCT.

Thanks

Karl
 

Last edited by kl23hwk; Dec 2, 2003 at 11:49 AM.
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Old Dec 2, 2003 | 11:57 AM
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The primary fule filter/water seperator is on the inside of the frame rail on the driver's side of the truck, just about under the middle of the doors. You can drain any water out by removing the brass plug on the side, it uses a 6MM hex wrench(Allen wrench). TI think the book says replace fuel filters every 15,000 miles. The secondary fuel filter is on top of the engine, right beside the oil filter. . you buy the filters as a set of 2 with new "O" rings included.
 
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Old Dec 2, 2003 | 11:59 AM
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BTW, to find your engine build date, look at the rear of the driver's side valve cover, there is a sticker that tells you when it was built.
 
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Old Dec 2, 2003 | 12:04 PM
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Looks like my Manufacture date is 2-21-03 Any advice. Should I take it back in to the Dealer....Call Ford consumer relations. is there a newer reprogram other than the one done in late October?
 
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Old Dec 2, 2003 | 12:08 PM
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My truck is a 12/02 build date. I had the October flash done and it runs just fine. There is no later flash out just yet, but expect one soon. What is your mileage averaging?
 
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Old Dec 2, 2003 | 12:14 PM
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around 12.5 some times bumps up to 14.00 Hwy
 
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Old Dec 2, 2003 | 12:22 PM
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You gotup problem. Kemosabe. Mine will do an honest 20 mpg at 65 mph without a load. This weekend I came back from hunting in Georgia with a full tank, a 110 Gallon tank of Deisel fuel in the bed, and all my dogs boxs, etc and got right at 18.5 mpg on the trip.
 
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Old Dec 2, 2003 | 01:04 PM
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After my idle flash my MPG went from 17 to 11 let me know what your dealer says.
 
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Old Dec 2, 2003 | 01:07 PM
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AlaskaF250: do you have the c94 injectors?
 
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Old Dec 2, 2003 | 03:27 PM
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How do I tell what injectors I have?
 
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Old Dec 28, 2003 | 08:18 AM
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Originally posted by Hjudge49
The primary fule filter/water seperator is on the inside of the frame rail on the driver's side of the truck, just about under the middle of the doors. You can drain any water out by removing the brass plug on the side, it uses a 6MM hex wrench(Allen wrench). TI think the book says replace fuel filters every 15,000 miles. The secondary fuel filter is on top of the engine, right beside the oil filter. . you buy the filters as a set of 2 with new "O" rings included.
Go to this thread, read completely and post.
In addition, please read more instructions, bottom of second page, posted by Tim L
Tell as many as you can about this thread, the simpler the writing (posting)
of “problem/odometer” reading………….the easier it will be to collate. Do not need many words.

http://www.ford-trucks.com/forums/sh...hreadid=185570

Thanks
Tim
 
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