Reverse has no power update - Ford Powerstroke Diesel Forum
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Old 07-17-2006, 01:17 PM
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Unhappy Reverse has no power update

Well guys, I dropped off my truck last Wednesday evening and got it back Saturday. The mechanic told me that he looked at Ford's TSB's and found one that stated......2000 - 2001 Super Duty F Series ISSUE- Some vehicles equipped with the 6.8L -2V engine, 4R100 transmission and PTO option may exhibit a low power condition while in reverse gear. This may be caused by the calibration of of the Powertrain Control Module (PCM).


The mechanic basically didn't do anything to my truck. He said since my truch has that same transmission in it he would take it to a Ford dealer and have them reprogramm the PCM before I do anything else. I'm not sure what to do about it now. I am afraid to have it reprogrammed because what if I use my Edge evolution and it happens again? Do you guys have any more ideas?
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Old 07-17-2006, 04:15 PM
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Your tranny is not a PTO trannie...it does not even have the spot to mount the PTO....the tech was wrong.......Ford TSB's are very specific. if it says "6.8 with pto trannie build datexxxxx-xxxxx"....it will ONLY be applicable to those trucks.....
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Old 07-17-2006, 05:52 PM
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Do you at least find it odd that it is the same symptom with the same type of tranny? If I set my programmer to any of the three settings other than stock my transmission works better, ...has power. The mechanic was going to tear into the rear end until he seen the TSB. I told him I didn't think it was the rear end. I will probably just run it the way it is until whatever it is finally goes then I will know for sure I guess. I trust this site more than the mechanic, you guys rock.
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Old 07-17-2006, 05:55 PM
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get me a vin....ill run oasis and see if anything is actually aplicable to your truck...sent me a PM with the vin...

Here is the deal...whatever is binding in your trans evidently is helped by increased line pressure.......that is how the PTO trannie could seem to have a similar concern. PTO's use trannie fluid to run a pump which controlls somethin...a winch, dump bed, etc......you programmer also will bump line pressures, thus improving the function.....

This idea was a good one, and if your truck would have fit the criteria, i would say he would have been right on...

and its not in the rear end, i will garantee you that, if it was, you would be noticing other problems....
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Old 07-17-2006, 06:15 PM
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I'll have you a vin in about 15 minutes...Thank you.
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Old 07-17-2006, 06:16 PM
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Quote:
Originally Posted by Green Horn
I'll have you a vin in about 15 minutes...Thank you.
anytime man!!!
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Old 07-17-2006, 06:41 PM
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Marc,

I sent you that pm. Thanks again
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Old 07-17-2006, 06:51 PM
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i replied, no TSB's or SSM's applicable to your concern....BUT...you may have an extended coverage you didnt know about...a ford extended warranty.....
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Old 07-25-2006, 11:03 AM
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Quote:
Originally Posted by Marc
get me a vin....ill run oasis and see if anything is actually aplicable to your truck...sent me a PM with the vin...

Here is the deal...whatever is binding in your trans evidently is helped by increased line pressure.......that is how the PTO trannie could seem to have a similar concern. PTO's use trannie fluid to run a pump which controlls somethin...a winch, dump bed, etc......you programmer also will bump line pressures, thus improving the function.....

This idea was a good one, and if your truck would have fit the criteria, i would say he would have been right on...

and its not in the rear end, i will garantee you that, if it was, you would be noticing other problems....
I just posted another one on this topic...and then I saw this thread. So, Marc, is this possibly a computer talking to the truck problem (the wrong pressure being sent out when putting truck into reverse), or are we still possibly looking at an early sign of total trannie failure, in your opinion?

Thanks.
Greg
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Old 07-25-2006, 12:57 PM
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I did call my local Ford dealer and spoke with the service department. They said they would charge me $68 to diagnose the problem. I think I am going to go that route first. They also said it was $60 to reprogramm the pcm.
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