AOD help needed!

[EHardy1971]

Lee,Brian,or any AOD guys,I need some input here! Driving my coupe this past week,my overdrive stopped working with NO warning! I still have first through drive though.Here's the deal,pulled it out 3 years ago when I was starting my engine build,put in B&M shift kit and new filter.It sat until a few weeks ago when I got everything going,after a little over 100 miles on the fresh engine,it took a crap!,worked great to that point.I dropped the pan and filter,and they are clean. Soooo,I'm thinking the OD piston seal might have been a little dry rotted,and blew out,or a broken OD band, What's the concensus here?

[Italian LX]

Have you ever done the 1-D-1 shuffle with that tranny?

Also, did you attach the throttle kick-down cable when you put the tranny back in?

[EHardy1971]

Originally Posted by Italian LX

Have you ever done the 1-D-1 shuffle with that tranny?

Also, did you attach the throttle kick-down cable when you put the tranny back in?

that would be a yes to both!

[Italian LX]

Originally Posted by EHardy1971

that would be a yes to both!

Well, it's good that you attached the kick-down cable. That will take out an AOD really quickly.

The 1-D-1 shuffle will eventually take out your overdrive band, but not right away. I think I did it at least 30 times before it started to have adverse effects on the overdrive. If you have only done it a few times, it's likely not the cause, but if you made a habit of pulling back down into (1) in order to keep it in 2nd gear, then that's probably what has taken a toll on your overdrive band.

[EHardy1971]

I was afraid of that!,so what is the main failure with them Brian,burning,or breaking?

[Italian LX]

Originally Posted by EHardy1971

I was afraid of that!,so what is the main failure with them Brian,burning,or breaking?

To be honest, I really don't know enough about the internals of an automatic to tell you the details of how the overdrive failed. All I really know of autos is valve-body modifications.

[coupe]

Yea. Overdrive band was my thought. It's notoriouosly weak in the AOD. Definitely needs the heavy duty servo to be stronger...I think it's called the "A" servo. Or the aftermarket companies make it.

[Italian LX]

Originally Posted by coupe

Yea. Overdrive band was my thought. It's notoriouosly weak in the AOD. Definitely needs the heavy duty servo to be stronger...I think it's called the "A" servo. Or the aftermarket companies make it.

When I had an AOD, I ordered the 'A' servo along with my shift kit though Bauman Engineering. You can also get the A-servo out of a Supercoupe AOD.

However, that won't solve his problem. It will give a firmer shift into OD and allow the band to last a bit longer, but it still won't allow for the 1-D-1 shuffle or fix his current problem.

[04 Mach1]

Yep I had all the fun I could deal with a couple of months ago with the whole aod rebuild. They are a weaker trans but with a couple modifcations they'll hold up to 450 pretty easy.The shift kit is a must and I have an "A" servo if you decide to go with the aod.

[Italian LX]

Originally Posted by 04 Mach1

Yep I had all the fun I could deal with a couple of months ago with the whole aod rebuild. They are a weaker trans but with a couple modifcations they'll hold up to 450 pretty easy.The shift kit is a must and I have an "A" servo if you decide to go with the aod.

Hmmm, I wonder where you got that 'A' servo from?