AOD transmission?
03-11-2009, 09:33 PM
#1
Junior Member
Thread Starter
Join Date: Mar 2009
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
AOD transmission?
I have an 89 F-150 300 I6 2wd and the old manual transmission went out in it so I decided to go automatic. The new transmission I got from a friend and its an AOD I believe. Has the 14-bolt pattern tapered end on the backside of the pan. Its all installed and i have everything ran for it (cooling lines etc.) except for the neutral/backup light switch, which I dont have a connector for... but when I put it in drive and go it doesn't shift at all. And it seems to lag when I hit the gas too. Anything i might be missing?
03-12-2009, 10:06 PM
#3
Retired Aerospace
Join Date: Dec 2008
Location: Edgewater, Florida
Posts: 1,324
Likes: 0
Received 13 Likes
on
12 Posts
Transmission Wreckage:
I have an 89 F-150 300 I6 2wd and the old manual transmission went out in it so I decided to go automatic. The new transmission I got from a friend and its an AOD I believe. Has the 14-bolt pattern tapered end on the backside of the pan. Its all installed and i have everything ran for it (cooling lines etc.) except for the neutral/backup light switch, which I dont have a connector for... but when I put it in drive and go it doesn't shift at all. And it seems to lag when I hit the gas too. Anything i might be missing?
DO NOT, and I repeat, DO NOT try to run that tranny until you get the throttle position linkage properly installed. The TP lever on the tranny looks like a kick-down lever, but it is not. It must be driven proportionally from the throttle lever and the settings are quiite critical. If you get the settings wrong, you run the risk of wiping out the OD band, and it'll go b'ye-b'ye in a hurry. 
Some older models use a push rod between the throttle lever and tran lever and some later models use a cable.
If there is a clear shot between the throttle lever and tran lever, then a push rod is the better approach.
Take a look at some AOD installations in cars of the eighties to get a handle on the configuration.
Last edited by Kattumaram; 03-12-2009 at 10:22 PM.
03-12-2009, 11:40 PM
#4
Junior Member
Thread Starter
Join Date: Mar 2009
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
only cable i have is a TV cable. i have checked the adjustment on it and seems fine. soon as i pull on the throttle cable from under the hood i can see that its pulling the TV cable. i have also checked to see that the valve is in rear most travel and how far it does travel with cable fully pulled. didn't adjust a thing tho.
03-13-2009, 07:00 AM
#6
Retired Aerospace
Join Date: Dec 2008
Location: Edgewater, Florida
Posts: 1,324
Likes: 0
Received 13 Likes
on
12 Posts
Apples and Oranges:
Anyway, you are correct when you say, "It will need to be adjusted properly for the tranny to work properly." In the case of the AOD that adjustment is critical.
Last edited by Kattumaram; 03-13-2009 at 07:02 AM.
03-13-2009, 10:37 PM
#7
Well, in reality the two are not the same. The AOD Throttle Position lever serves as an equivalent to a combination of the kick-down lever and vacuum modulator found in a non-electronic auto tran. In the non-electronic AOD the TP lever position determines shift points and line pressures.
Anyway, you are correct when you say, "It will need to be adjusted properly for the tranny to work properly." In the case of the AOD that adjustment is critical.
Anyway, you are correct when you say, "It will need to be adjusted properly for the tranny to work properly." In the case of the AOD that adjustment is critical.
Trending Topics
03-14-2009, 09:01 PM
#8
Retired Aerospace
Join Date: Dec 2008
Location: Edgewater, Florida
Posts: 1,324
Likes: 0
Received 13 Likes
on
12 Posts
Why it's necessary to "split hairs":
Here is the procedure for properly adjusting the TV cable/rod settings for an AOD:http://www.becontrols.com/tech/tvlinkage.htm
Good luck.
