AOD Tranny Problem/Question
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From: Dennis Kansas
AOD Tranny Problem/Question
I have just bought an 81 ford f-150 with a 302, and an AOD tranny. When it shifts into 3rd, it about dies sometimes because of shifting too soon. Also when I go out on the highway, you have to floor it to get it to kick down so it will go past 50, then it has to go into passing gear to get to 65. Is this just an AOD shifting thing, or is there a problem, and should I stay away from an AOD? I recently changed all the fluids, and the filter. This helped a little. Please help me out. Thanks
Post Fiend
Joined: Nov 2002
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From: Memphis, TN
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Junior User
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From: Dennis Kansas
AOD Tranny Problem/Question
Hey, thanks for the response. Do you think adjusting the throttle valve cable would be something able to be done at home easy enough, or is this somthing to take and have done? I havent messed with trannys much, so I dont know. Thanks Jared
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
AOD Tranny Problem/Question
Yes, you just pop a clip, have an assistant hold the cable in the right position, and put the clip back in to lock the setting. The Haynes manual tells exactly what to do. Did you look it up at that link in my previous post? Click where it says "This site".
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From: Dennis Kansas
AOD Tranny Problem/Question
ok, doesnt sound too bad to do. I tried to look it up, but no information was available on the type of truck and the subject. So I guess i'll have to buy me a Haynes manual, and try it out before I cause too much damage. Thanks alot for your help.
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
AOD Tranny Problem/Question
I went straight to it, but you'll have to go there to see the diagrams.
ADJUSTMENT AT THE CARBURETOR
The TV control linkage may be adjusted at the carburetor using the following procedure:
Check that engine idle speed is set at the specification.
De-cam the fast idle cam on the carburetor so that the throttle lever is at its idle stop. Place shift lever in N (neutral), set park brake (engine off).
Back out linkage lever adjusting screw all the way (screw end if flush with lever face).
Turn in adjusting screw until a thin shim (0.005 inch; max.) or piece of writing paper fits snugly between end of screw and Throttle Lever. To eliminate effect of friction, push linkage lever forward (tending to close gap) and release before checking clearance between end of screw and throttle lever. Do not apply any load on levers with tools or hands while checking gap.
Turn in adjusting screw an additional four turns. (Four turns are preferred. Two turns minimum is permissible if screw travel is limited).
If it is not possible to turn in adjusting screw at least two addition turns or if there was sufficient screw adjusting capacity to obtain an initial gap in Step 2 above, refer to Linkage Adjustment at Transmission.Whenever it is required to adjust idle speed by more than 50 rpm, the adjustment screw on the linkage lever at the carburetor should also be readjusted as shown.
Idle Speed Change/Turns on Linkage Lever Adjustment Screw
Less than 50 rpm: No change required
50 to 100 rpm increase: 11/2 turns out
50 to 100 rpm decrease: 11/2 turns in
100 to 150 rpm increase: 21/2 turns out
100 to 150 rpm decrease: 21/2 turns in
After making any idle speed adjustments, always verify the linkage lever and throttle lever are in contact with the throttle lever at its idle stop and the shift lever is in N (neutral).
ADJUSTMENT AT TRANSMISSION
See Figure 12
Fig. 12: Automatic overdrive transmission linkage adjustment
The linkage lever adjustment screw has limited adjustment capability. It is not possible to adjust the TV linkage using this screw, the length of the TV control rod assembly must be readjusted using the following procedure. This procedure must also be followed whenever a new TV control rod assembly is installed.
This procedure requires placing the vehicle on jackstands to give access to the linkage components at the transmission TV control lever.
Set the engine curb idle speed to specification.
With engine off, de-cam the fast idle cam on the carburetor so that the throttle lever is against the idle stop. Place shift lever in Neutral and set park brake (engine off).
Set the linkage lever adjustment screw at its approximately mid-range.
If a new TV control rod assembly is being installed, connect the rod to the linkage lever at the carburetor.
ADJUSTMENT AT THE CARBURETOR
The TV control linkage may be adjusted at the carburetor using the following procedure:
Check that engine idle speed is set at the specification.
De-cam the fast idle cam on the carburetor so that the throttle lever is at its idle stop. Place shift lever in N (neutral), set park brake (engine off).
Back out linkage lever adjusting screw all the way (screw end if flush with lever face).
Turn in adjusting screw until a thin shim (0.005 inch; max.) or piece of writing paper fits snugly between end of screw and Throttle Lever. To eliminate effect of friction, push linkage lever forward (tending to close gap) and release before checking clearance between end of screw and throttle lever. Do not apply any load on levers with tools or hands while checking gap.
Turn in adjusting screw an additional four turns. (Four turns are preferred. Two turns minimum is permissible if screw travel is limited).
If it is not possible to turn in adjusting screw at least two addition turns or if there was sufficient screw adjusting capacity to obtain an initial gap in Step 2 above, refer to Linkage Adjustment at Transmission.Whenever it is required to adjust idle speed by more than 50 rpm, the adjustment screw on the linkage lever at the carburetor should also be readjusted as shown.
Idle Speed Change/Turns on Linkage Lever Adjustment Screw
Less than 50 rpm: No change required
50 to 100 rpm increase: 11/2 turns out
50 to 100 rpm decrease: 11/2 turns in
100 to 150 rpm increase: 21/2 turns out
100 to 150 rpm decrease: 21/2 turns in
After making any idle speed adjustments, always verify the linkage lever and throttle lever are in contact with the throttle lever at its idle stop and the shift lever is in N (neutral).
ADJUSTMENT AT TRANSMISSION
See Figure 12
Fig. 12: Automatic overdrive transmission linkage adjustment
The linkage lever adjustment screw has limited adjustment capability. It is not possible to adjust the TV linkage using this screw, the length of the TV control rod assembly must be readjusted using the following procedure. This procedure must also be followed whenever a new TV control rod assembly is installed.
This procedure requires placing the vehicle on jackstands to give access to the linkage components at the transmission TV control lever.
Set the engine curb idle speed to specification.
With engine off, de-cam the fast idle cam on the carburetor so that the throttle lever is against the idle stop. Place shift lever in Neutral and set park brake (engine off).
Set the linkage lever adjustment screw at its approximately mid-range.
If a new TV control rod assembly is being installed, connect the rod to the linkage lever at the carburetor.
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Junior User
Joined: Jun 2003
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From: Dennis Kansas
AOD Tranny Problem/Question
hey, thanks, i must have been looking in the wrong places. This info will help out a bunch, Thanks very much, Jared Cagle
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Junior User
Joined: Jun 2003
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From: Dennis Kansas
AOD Tranny Problem/Question
Where did you have to go to find the diagrams???I cant find a thing over the Auto Over Drive on that site. I cant even find where you got the info you posted on here.
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