Ford AOD problems, no down shift and shift pattern changed...

[Munchos90]

my 89 5.0 mustang recently went a little bananas, the shift points changed and it doesn't down shift when you floor it, it just gradually picks up speed, 1-2 shifts at 70-80 km/h then 2-3 shift around 100 and then to get overdrive, it has to hit 140 km/h... it kick out of overdrive at about 110 km/h

anyone have any ideas?

thanks
Dave

 

[Mustang Yawie]

Might want to check your tv cable, since it deals with pressure points to shift it. Hope this helps

 

[1Slow5oh]

Kickdown cable adjusted correctly..

MPH would help to.....

Does it downshift when you stop...?

 

[Munchos90]

the car will drop back down to 1st when i stop at corners and shift nice, but not the same as before... it shifts at like 4 grand... almost like someone installed a shift kit... just happened all of a sudden when i started driving the car one day...

 

[The Shape]

Whats the fluid Level/Condition?

 

[wythors]

It sounds like the throttle valve cable is disconnected or broken. Check where it attaches to the linkage on the throttle body. There's a little nylon bushing that holds it on the linkage. It's very common for it to crumble away after a decade or two of use.

 

[Mustang5L5]

It sounds like the throttle valve cable is disconnected or broken.

I'd almost bet on it that this is what it is.

Look for a cable dangling under the throttle body.