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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

automatic behaving manual

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Old Jan 24, 2017 | 09:11 PM
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automatic behaving manual

Hi group, I recently purchased a f350 xlt with the 7.3 and banks turbo. It has an automatic transmission but sometimes when I come to a start it would jerk and go dead as if I were stopping a manual trasmission without using the clutch. Not sure how many miles it has cause the odometer doesn't work. Anyone who has experience with this please help
 
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Old Jan 24, 2017 | 09:21 PM
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It would help to know what year this is.
 
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Old Jan 24, 2017 | 11:07 PM
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Sorry it's a 1993
 
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Old Jan 24, 2017 | 11:34 PM
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See if you can pull any codes from the truck. You should be able to pull transmission specific codes.
 
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Old Jan 25, 2017 | 05:59 AM
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From: Chillicothe
https://m.youtube.com/watch?v=p04NPv_gXsI

​​​​​​​
link will show you how to check codes
 
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Old Jan 25, 2017 | 07:05 AM
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Sounds like a torque converter issue... That is the purpose of it- if it has locked & not released, then it may be the issue...

Scott
 
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Old Jan 25, 2017 | 07:57 AM
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Torque converter was my first thought as well but will do the simple thing first try to get some code reading. Will update with the progress
 
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Old Jan 26, 2017 | 04:48 PM
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First thing should be diagnosing the odometer. These trucks use a digital speed signal that is processed by the PSOM (Programmable Speedometer Odometer Module) this signal is what helps run the E4OD transmission that you have, unless you have a C6 which is rare. If that signal isn't correct the transmission is getting incorrect information and could be causing your issues.
 
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Old Jan 28, 2017 | 05:27 PM
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Yea I did change out the speedometer head and the problem still exist, so it's time to get a code reading and hope that tells me what's going on.
 
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