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4L60E No 2nd and 4th

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Old Aug 26, 2021 | 12:14 AM
  #41  
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From: Nitro Alley
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Originally Posted by Synaux
Ok installed the transgo replacement plate (which didn't come with gaskets so I reused the old/like new ones).
I now have 2th and 4th!

The vehicle runs excellent except for one concern:
If accelerating moderately to excessively, it slips from 2nd to 3rd for less than a second. And by slips, I mean the engine revs up about 500-1k RPM then settles into 3rd.

On slow acceleration, it shifts flawlessly.
Normally the first recommendation for what you are experiencing is to add an additional 0.5 to 1.0 Quart of ATF.

If no change... Line-Pressure readings should be taken during the Shift-Flair.
If Pressures are dropping too low, then 3-4 Clutch Circuit leaks need to be addressed.
If Pressures are good...
Then the Third-Feed, Third-Exhaust, and Third-Accumulator Orificing needs to be reexamined.
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