Does '88 AOD use vacuum?

race1now · 08-07-2001, 01:28 PM

I have an AOD in my '88 LX. Does that transmission use vacuum lines for shifting (or any reason for that matter.) I believe that the newer AOD-E would not. But what about the AOD? I'm having some problems with the trans not shifting into OD and I'm checking all the minor things prior to spending money at the dealer.

429AL · 08-07-2001, 02:54 PM

No it does not use vacuum. it uses a cable.

------------------
Stock 89 GT with 147000 miles,but not for long. Now with 3.73`s, soon 306 from 85 install.

Capri306 · 08-07-2001, 10:05 PM

Correct. No vacuum, just a Throttle Valve (TV) cable.

*IMPORTANT* This needs to be adjusted properly or severe tranny damage WILL result. Trust me, I know.

Find that little nylon grommet on the throttle body that the TV cable snaps into. The end of the cable should be tight in there with NO play. If it's shot, go to your nearest Ford dealer and get a new one.

Before sinking money into your AOD, check out Baumann Engineering. There you'll learn more about the AOD than you ever thought possible. I've done most of the mods they've suggested there, and mine has survived 4 months of nightly street racing. Well, I also did some customizations, but I can attribute most of its durability to proper TV pressure and a tranny oil cooler. Hope this helps.

------------------
Capri306, Moderator, The Mustang Works Online
1979 Mercury Capri, 5.0L -- C4 -- 2.73
1987 Mustang LX Notch

08-07-2001, 01:28 PM	#1
race1now Registered Member Join Date: Nov 1998 Location: Milwaukee, WI Posts: 10	Does '88 AOD use vacuum? I have an AOD in my '88 LX. Does that transmission use vacuum lines for shifting (or any reason for that matter.) I believe that the newer AOD-E would not. But what about the AOD? I'm having some problems with the trans not shifting into OD and I'm checking all the minor things prior to spending money at the dealer.

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08-07-2001, 02:54 PM	#2
429AL Registered Member Join Date: May 2001 Location: Tacoma,wa,usa Posts: 41	No it does not use vacuum. it uses a cable. ------------------ Stock 89 GT with 147000 miles,but not for long. Now with 3.73`s, soon 306 from 85 install.

08-07-2001, 10:05 PM	#3
Capri306 Moderator Join Date: Sep 1998 Location: Grand Rapids, Michigan, USA Posts: 1,001	Correct. No vacuum, just a Throttle Valve (TV) cable. IMPORTANT This needs to be adjusted properly or severe tranny damage WILL result. Trust me, I know. Find that little nylon grommet on the throttle body that the TV cable snaps into. The end of the cable should be tight in there with NO play. If it's shot, go to your nearest Ford dealer and get a new one. Before sinking money into your AOD, check out Baumann Engineering. There you'll learn more about the AOD than you ever thought possible. I've done most of the mods they've suggested there, and mine has survived 4 months of nightly street racing. Well, I also did some customizations, but I can attribute most of its durability to proper TV pressure and a tranny oil cooler. Hope this helps. ------------------ Capri306, Moderator, The Mustang Works Online 1979 Mercury Capri, 5.0L -- C4 -- 2.73 1987 Mustang LX Notch