AOD tranny
AOD tranny
Those who have one, do you drive in (D) or D when driving in city traffic? Or does it matter? This is what I usually drive in all the time.
I posted an earlier question about my tranny shifting slow on acceleration and thought this might help the situation if I use D instead.
I posted an earlier question about my tranny shifting slow on acceleration and thought this might help the situation if I use D instead.
I usually suggest driving in od unless you are towing a heavy load or don't want into high gear for snow or a large hill something like that. Check the grommet on the tv cable that is usually what kills an aod transmission.
Alan
Alan
I find that my AOD always likes to force itself into OD at speeds to slow to be usefull. I leave it in D for philly traffic city drivin.
For others reading this with the E4OD, 4R70w, ect. ya don't really need to lock out OD unless it keeps hunting between 3rd and 4th while goin slower on the highway with a load.
Adrianspeeder
For others reading this with the E4OD, 4R70w, ect. ya don't really need to lock out OD unless it keeps hunting between 3rd and 4th while goin slower on the highway with a load.
Adrianspeeder
AOD tv cable setting has a lot to do with when the trans shifts and the feel.
Now this is not according to the book but IMO is ok to do assuming the trans is in reasonable condition.
Shorten up the TV cable setting about 1/8" at a time until you begin to feel a definate firm 1 to 2 shift and STOP there.
The result should be higher shift points, firm feel and a sharper feeling engine.
My experience in referring you to this is owning an AOD equipped Lincoln Mark VII 5L with a Bauman shift kit, A overdrive servo and a Kenne Bell blower driving it for the last 3 years.
The cable has an adjusment feature at the throttle body and be sure the bushing is not worn or missing.
If you completely lose the TV cable connection at the throttle body or anywhere, the trans will be LOST in short order from low pressure not operating the servos and clutches, resulting in slip to the burning point.
This tip I give you of course at your risk should anything happen but normally is safe to do if taken to the STOP point I suggest..
Now this is not according to the book but IMO is ok to do assuming the trans is in reasonable condition.
Shorten up the TV cable setting about 1/8" at a time until you begin to feel a definate firm 1 to 2 shift and STOP there.
The result should be higher shift points, firm feel and a sharper feeling engine.
My experience in referring you to this is owning an AOD equipped Lincoln Mark VII 5L with a Bauman shift kit, A overdrive servo and a Kenne Bell blower driving it for the last 3 years.
The cable has an adjusment feature at the throttle body and be sure the bushing is not worn or missing.
If you completely lose the TV cable connection at the throttle body or anywhere, the trans will be LOST in short order from low pressure not operating the servos and clutches, resulting in slip to the burning point.
This tip I give you of course at your risk should anything happen but normally is safe to do if taken to the STOP point I suggest..
Thanks for the replies.
Would a shift kit be a better/easier solution. I have no working knowledge with the tv cable. I plan to do a fluid drain and filter replacement, and since I am in there, should I do a shift kit also? Anyone know if a 93 has a TC drain plug?
I don't have a problem looking up this adjustment in my service manual, if its in there.
Would a shift kit be a better/easier solution. I have no working knowledge with the tv cable. I plan to do a fluid drain and filter replacement, and since I am in there, should I do a shift kit also? Anyone know if a 93 has a TC drain plug?
I don't have a problem looking up this adjustment in my service manual, if its in there.
I can't judge your ablity but the TV cable is an adjustment on the cable/throttle body end and may not be in your book.
On cars the cable end is adjustable, on some trucks the cable mount position is adjusted, so I don't know what kind you have.
It is normally done by setting trans pressure level with a gauge vs cable position for the 'legal' way from a shop, but the way I gave is more than adiquite without anything but test driving.
A shift kit involves dropping the valve body, replacing springs, shimming, hole drilling/enlarging in the seperator plate, plugging holes etc after deciding on what level of performance change you might want. This may be a lot more than you want get into for all the problems that can result if the changes are not right, missed or not understood.
Take a long look at the cable end and see if you can detect the way the setting is changed.
You may see a fine slotted plastic with an outside clip or a smaller slotted cable with a plastic key that when withdrawn will free up the travel then insert back down to lock the adjustment.
The caution is to mark/ measure the stock location first then make adjustments to shorten the end length or make the cable pull shorter versus the throttle travel. This raises pump pressure in the trans very quickly hence the small adjustments at a time.
Best I can do is explain about it and what to accomplish and what it does.
.
With an AODE (4r70) this feature is no longer used but all controlled by the PCM so any changes are done by reprogram or again a seperator plate modification. Your truck is EEC engine controlled when using an AOD as there is no electric trans control.
On cars the cable end is adjustable, on some trucks the cable mount position is adjusted, so I don't know what kind you have.
It is normally done by setting trans pressure level with a gauge vs cable position for the 'legal' way from a shop, but the way I gave is more than adiquite without anything but test driving.
A shift kit involves dropping the valve body, replacing springs, shimming, hole drilling/enlarging in the seperator plate, plugging holes etc after deciding on what level of performance change you might want. This may be a lot more than you want get into for all the problems that can result if the changes are not right, missed or not understood.
Take a long look at the cable end and see if you can detect the way the setting is changed.
You may see a fine slotted plastic with an outside clip or a smaller slotted cable with a plastic key that when withdrawn will free up the travel then insert back down to lock the adjustment.
The caution is to mark/ measure the stock location first then make adjustments to shorten the end length or make the cable pull shorter versus the throttle travel. This raises pump pressure in the trans very quickly hence the small adjustments at a time.
Best I can do is explain about it and what to accomplish and what it does.
.
With an AODE (4r70) this feature is no longer used but all controlled by the PCM so any changes are done by reprogram or again a seperator plate modification. Your truck is EEC engine controlled when using an AOD as there is no electric trans control.
i went to get a shift kit put in and started doing some research. everyone shop that i talked to (i have a 2002 f150) told me NOT to put a shift kit in this trans because they were notorious for breaking after a few miles. now this comes from multiple shops...
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Originally Posted by crash_lucky13
i went to get a shift kit put in and started doing some research. everyone shop that i talked to (i have a 2002 f150) told me NOT to put a shift kit in this trans because they were notorious for breaking after a few miles. now this comes from multiple shops...
Adrianspeeder
Usually unless you are rebuilding it or it is low milaeage don't mess with it. All aod's have a drain plug in them it is on the flexplate side so remive the little metal dust cover and turn the engine around untill you see it.
TV cable adjustment is critical on these transmissions like no other. Toom uch pressure will break things and too little will fry the clutches in it. If you want to adjust tv pressure get the ford gauge block part number T86L-70332-A or some kind of spacer that is about .275 thick. Put a pressure gauge on the tv port and set the cable with that block installed to no less than 33psi and no more than 35. Make sure the vehicle is warm and idling in netrual when you make these adjustments. Do not adjust a cold transmission.
Alan
TV cable adjustment is critical on these transmissions like no other. Toom uch pressure will break things and too little will fry the clutches in it. If you want to adjust tv pressure get the ford gauge block part number T86L-70332-A or some kind of spacer that is about .275 thick. Put a pressure gauge on the tv port and set the cable with that block installed to no less than 33psi and no more than 35. Make sure the vehicle is warm and idling in netrual when you make these adjustments. Do not adjust a cold transmission.
Alan





