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80e slow to engage reverse, sometimes does not drop into 1st at a stop.

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Old Aug 10, 2020 | 05:10 PM
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From: Portlandia
Default 80e slow to engage reverse, sometimes does not drop into 1st at a stop.

pressures are nominal in all gears.

mild build 80e using the CK style accumulator delete. dual feed mod. the OE reverse band was toast, put a OE style borg band in it.

I have the VB out now doing a transgo AFL bore kit

I do not have the gear made to check pin travel.

has anyone here done the thing where you weld up the apply pin to lengthen it .050"?

just wondering if I should shotgun that in there while I have the pan off

thanks gents

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Old Aug 10, 2020 | 06:35 PM
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From: Nitro Alley
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The low-reverse band is not used unless in manual 1st or reverse.
The transmission not returning to 1st after stopping is going to be valve-body related...

For the band adjustment/ clearance...
Give this a read.

Click Here
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Old Aug 10, 2020 | 09:21 PM
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well the AFL valve seems to have fixed the not dropping to first issue. everything in the VB looked good.

I know some people removed the reverse checkball...I did not.

I'll look more into adjusting the band.
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Old Aug 10, 2020 | 11:37 PM
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Originally Posted by truckdoug
well the AFL valve seems to have fixed the not dropping to first issue. everything in the VB looked good.

I know some people removed the reverse checkball...I did not.

I'll look more into adjusting the band.
Perfect!

Worn AFL valve-train/ low AFL fluid pressure will cause that issue.
It is very common to see this... the shift solenoids can not do there job without a healthy AFL valve-train/ pressures.

Most of the valve-bodies that I overhaul, require this repair as well as the TCC regulator valve-train from Sonnax.
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Old Aug 10, 2020 | 11:38 PM
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Did you look at the HYPERLINK that I included in post #2?
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Old Aug 11, 2020 | 01:35 AM
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yes, i am on the scour to find a spare servo cover to make that tool
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