AOD vibration/OD gone?

[maddhatteroo7]

ok guys...my 88 5.0's AOD tranny sounds like its on the way out when im driving the car its ok until i get up to about 3rd gear and hit around 35+ mph, then the tranny begins to make a noise and vibration and im able to rev higher to 4k rather than staying at a cool 2k accelerating( this happens with OD on and driving in D )...the previous owner had the tranny flushed and filled back in october and the fluid does smell a little burnt now....how can i tell if i have low pressure or a busted OD band? anyone have any thoughts on this? i havent been driving in it around since it happened but twice for my friends to see and check it out, hopefully my mechanic friend thats at a dealership can check it out for me soon...also what would cause my tranny to have low pressure on the fluids? i havent dropped the pan to see if i have any metal shavings or chunks, so i'll find out monday w\my mechanic friend thanks guys

 

[maddhatteroo7]

bump!

 

[LX302]

The TV cable or Throttle valve cable that comes off the transmission and then attaches to the underside of the throttle body is what gives you the correct pressure when you accelerating, but for the symptoms you described, the vibration and high tach readings, could be as easy as a bad adjustment of the cable, but I would say that you probably fried the OD band, especially since you said the fluid smells burnt. Wait till Monday, but I don't think you'll find chunks of metal in there. But you might want to be prepared to spend some serious cash in the future.

 

[crazypete]

Sounds like the OD band is not engaging or slipping a lot!

When you say it revs to 4K, is it free revving?

When you get up to the "shift point" where 3 would go to OD, does it forget to shift and then neutral above that point but "catch it" again when it revs down to the original shift point? I had this happen and it is the shift valve in the valve body. Clogged with some junk.

It usually smells burnt after the many years between trans oil changes that most mustangs live through.