AOD shift problems
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AOD shift problems
My buddy just picked up a 89 f150 with an AOD truck and i dont know anything about transmissions and he is asking me for help, so i came to yall.
His truck is dropping into neutral between gears when accelerating. Between 1st and 2nd. And then again when it is trying to switch into overdrive. You can get it switch back into gear by hitting the overdrive button when that happens. Most of the time that takes care of it but sometimes it will fall right back into neutral when you hit the button again to turn the overdrive back on.
The fluid was a little low when he got it. And when we put more in there the old fluid looked old and burnt up. Adding more fluid didnt really help the problem at all.
Since I dont really know anything about trannys I told him to start by replacing all the fluids and filters and see where that takes him.
Any advice is appreciated.
His truck is dropping into neutral between gears when accelerating. Between 1st and 2nd. And then again when it is trying to switch into overdrive. You can get it switch back into gear by hitting the overdrive button when that happens. Most of the time that takes care of it but sometimes it will fall right back into neutral when you hit the button again to turn the overdrive back on.
The fluid was a little low when he got it. And when we put more in there the old fluid looked old and burnt up. Adding more fluid didnt really help the problem at all.
Since I dont really know anything about trannys I told him to start by replacing all the fluids and filters and see where that takes him.
Any advice is appreciated.
Post Fiend
Joined: Jan 2005
Posts: 8,402
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Fuel Injection Technical Library » How To Run a Self-Test Here is a link on how to check for trouble codes, would be a good first step.
If he has an OD button he does not have an AOD trans but has an E4OD. It could well be a bad transmission range sensor (TRS), might be worth replacing the existing one with an updated one (some parts stores list it as a Neutral safety switch). However see if any codes first.
If he has an OD button he does not have an AOD trans but has an E4OD. It could well be a bad transmission range sensor (TRS), might be worth replacing the existing one with an updated one (some parts stores list it as a Neutral safety switch). However see if any codes first.
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nx_1701_d
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Apr 19, 2006 01:47 PM
