I have some questions that I need to get answered. I have searched the forum and didnt find the answers and of course the chilton manual has all of 3 pages about the transmission. Sheesh so here goes.

I own a 88 aerostar with the A4LD. The transmission went bad and I got a replacement from a junkyard. The transmission runs and shifts fine after adjusting the tv cable but here are my two main problems.

My first problem was that the electical plug for the torque converter lock on my aerostar is a 3 prong plug. On the replacement transmission it is only 2 prong. I cant find anywhere that gives me a wiring diagram to be able to tell which two wires I need to use. I am not really worried about the lockup. Its running fine without it and unless I can get a definate answer Im not going to worry about it.

My main problem is my TV cable. The aerostar tv cable hooks to the gas pedal. When I adjust the cable to the right length and everything is shifting correctly, when I push the pedal all the way to the floor it actually pulls the cable adjustment out too much. In other words when I have the adjuster set it pulls the adjuster out to a different setting. My only conclusion is that perhaps the replacement transmission came out of an automobile that the tv cable hooks to the throttle body/carb and the travel/angle of the lever on the transmission is different. Any help would be appreciated.

 

The aerostars dont use the AOD. They use the A4LD. This may be the cause of your problems.

 

My mistake. I just call it an AOD. Im sure its an A4LD. Aod was just easier to remember. I will edit my original post.

 

Does your van have a Automatic Transmission oil cooler? The cause for transmission failure is usually because it overheats. I think Ford realized this and put transmission coolers in their 1990-97 models.

 

The reason that the Torque Converter is supposed to lock, is for better fuel economy.

 

My '89 has a original factory transmission cooler on it.

 

Do you know what year, and what vehicle that the replacement transmission came out of?

 

I dont believe it has a trans cooler. I will check it and see and install one if it dosent. As far as what it came out of I have no idea. I assumed it was a ford aerostar. I do know that its shifting through all the gears including overdrive just fine without the torque converter lockup pluged up. I dont think it requires the computer to shift from 3-4. Other than the neutral saftey I believe the torque converer is the only plug.