AOD 2->3 shift point to soon. How to fix?

markinms

5 Year Member

Mar 1, 2018

88

14

18

Columbus MS

Sep 13, 2019

#1

• Sep 13, 2019

• #1

5.0/AOD trans swap works great, runs strong. One irritating problem I can't seem to fix.

Transmission shifts from 2nd to 3rd too soon. Causes vehicle to lug down in slower traffic. Shifts well when I'm able to get up to speed quickly, ie., 0-40+.

I adjusted TV pressure using a pressure gauge with the adjustment tool. Since then I've made a few manual adjustments but no luck improving the 2-3 shift timing.

Any suggestions how to resolve this. All feedback is appreciated.

Thanks!
Mark

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,347

18,081

224

Massachusetts

Sep 13, 2019

#2

• Sep 13, 2019

• #2

Shift kit, or learn to do the 1-D-1 shuffle to hold the gear longer

 

markinms

5 Year Member

Mar 1, 2018

88

14

18

Columbus MS

Sep 13, 2019

#3

• Sep 13, 2019

• #3

Thanks for the feedback. I've used the 1-d-1 shift and it does help. I was concerned how doing so would affect the trans.

I have a shift kit just sitting on the shelf and may go that route. Also may consider a new modified valve body.

Thanks again!

Mark

 

LX Dave

5 Year Member

Jul 2, 2017

240

185

53

Sep 13, 2019

#4

• Sep 13, 2019

• #4

If you go with a shift kit, I highly recommend a Trans-Go valve body reprogrammer. I use them in all of the automatics I have. Love them. They not only fix the upshifts, but fix the downshifts too. You can also adjust the shift points with the kit depending on the parts you install.

https://www.summitracing.com/parts/trg-aod-hp

 

JD1964

there is enough sticking out to grab on to

15 Year Member

Jun 28, 2013

3,549

1,598

194

Maryland

Sep 13, 2019

#5

• Sep 13, 2019

• #5

Another good option for AOD shiftkit is Baumann

AOD Transmission Info

Information on the now obsolete AOD transmission.

www.becontrols.com

 

JD1964

there is enough sticking out to grab on to

15 Year Member

Jun 28, 2013

3,549

1,598

194

Maryland

Sep 14, 2019

#6

• Sep 14, 2019

• #6

Heres my AOD automatic upshifts after a Baumann shift kit install. 1-2 is about 5200 rpm and 2-3 about 5000 rpm. This car has a 4.11 rear

View: https://youtu.be/bH_1oXoSBrc

 

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