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1994.5 - 1997 7.3L Power Stroke Diesel  

Need help with intermittent hard shift.

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Old May 6, 2017 | 05:36 PM
  #1  
Diesel cat's Avatar
Diesel cat
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Need help with intermittent hard shift.

My truck is hitting hard in second and fourth gear. I sent it to a transmission shop and they rebuilt my transmission, but I am still having the same problem. The problem is it is hit and miss I can go a week or more and nothing then all of a sudden wham!
I have changed the throttle position sensor, the variable speed sensor. My shift lever is a little loose could this cause my problem? Any help please.
 
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Old May 6, 2017 | 08:41 PM
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Does the truck have a chip?
 
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Old May 6, 2017 | 08:53 PM
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Have you checked for stored codes in the computer?

By variable speed sensor, do you mean the vehicle speed sensor on the rear diff?
 
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Old May 7, 2017 | 07:37 AM
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Yes, my truck has a chip and yes I replaced the speed sensor on the rear end. I was wondering should I go ahead and replace the neutral safety switch And see if this helps.
 
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Old May 7, 2017 | 07:38 AM
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I'll try and get it scanned to see if any codes are stored.
 
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Old May 7, 2017 | 12:11 PM
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REMOVE the chip and see what it does. If the problem goes away, contact whoever made or programmed the chip.
 
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Old May 7, 2017 | 03:25 PM
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Originally Posted by Diesel cat
I was wondering should I go ahead and replace the neutral safety switch And see if this helps.
Why that one? Has anything indicated it's a problem?
 
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Old May 7, 2017 | 03:30 PM
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The chip has been in my truck for five years and this problem started about six months ago. What drives me bonkers is this problem only happens every so often, but when I say shifts hard I mean it slams.
 
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