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1994.5 - 1997 7.3L Power Stroke Diesel  

E4OD Odd Shifting

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Old Apr 28, 2020 | 03:46 PM
  #16  
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Originally Posted by Markus Luukko
Mark, since I replaced the transgo springs and valves with sonnax parts essentially making a sonnax accumulator body shift kit, should I remove the calibration plate? I notice all the other shift improvement kits do not use a accumulator body plate.
Remove the calibration plate.
Sonnax kit doesn't require this part.
 
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Old Apr 28, 2020 | 03:50 PM
  #17  
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Originally Posted by trackspeeder
Remove the calibration plate.
Sonnax kit doesn't require this part.
Where do I find the original plate? I honestly cannot find proof of there being a plate there originally but mark was an engineer for these transmissions.
 
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Old Apr 28, 2020 | 03:59 PM
  #18  
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This is the pictorial i get from the factory manual. no plate between the main gasket and the accumulator body.

 
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Old Apr 29, 2020 | 02:20 PM
  #19  
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In stock factory form, there is no plate used.
 
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Old Apr 29, 2020 | 02:24 PM
  #20  
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Then that's the way to put it back together.
 
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Old May 7, 2020 | 02:19 PM
  #21  
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I don’t think it’s the accumulator body. When I bought the truck the previous owner sent me a video of it driving before I bought it. Truck shifted excellently and locked up when it should. Only thing that changed since then was it being shipped to me and it having a MLPS sensor code. Bought a new MLPS sensor and the code went away but the shifting is still bad. I am reading online the issue could be the PSOM, the VSS or the MLPS isn’t reading correctly. Any tips on this?
 
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Old Apr 11, 2021 | 03:15 PM
  #22  
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So I’m still trying to fight this shifting issue.
Im currently trying to figure out why the truck shifts as it does.
When i floor it, the truck will either downshift or lock the converter.
I was under the assumption the truck should upshift or unlock the converter.
Sometimes after a few seconds the truck will decide to upshift or unlock the converter cause the engine is lugging.
 
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