Question about 1989 Ford F 150

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'89 f150 4x4 AOD doesn't like overdrive

All of the gears shift smoothly until i get to overdrive. Once I get to the point where the transmission should shift into overdrive, I have to let off the gas. The truck will then shift, but it seems like over-drive is a really hard gear for the engine to push and the truck will shift out of it any time you moderately get on the gas. Then your back to letting off the gas to get it to re-engage. I don't think this is normal, but I've only owned the truck for about 24 hours.

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  • csnowberger1 Feb 21, 2009

    hard shifting from drive to overdrive truck shakes when overdrive engages

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Get the truck where you can service it and have a transmission service done this will include: new fluid and transmission filter
because it sounds as if it has not been changed in awhile open the hood and if the transmission fluid smells cooked change it right away

Posted on Jan 06, 2009

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My 2004 ford taurus is not shifting into overdrive. what could

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Feb 03, 2016 | 2004 Ford Taurus

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My ford F150 won't shift from 2nd to 3rd. Does anyone know what could be the issue?


Usually the transmission needs to be rebuilt in that situation. It's a very common problem if that's the famous automatic overdrive transmsission. AOD I have had three trucks that have done that. It usually starts by shuttering when it shifts and than finally goes out. Sometimes the Lucas transmission treatment gives you a little more time, but it sounds too late for yours. From what I understand (mechanic told me) that when the overdrive goes out, it takes third gear with it. If you drive in hilly areas, that overdrive is shifting in and out all the time as you go up and down hills and wears it out. My Dad had that hapen on his F150 and he replaced his transmission with a junk yard transmission that turned out to have the same problem. I had that transmission replaced with a Jasper rebuilt and it worked great. I think it was $1300 for the rebuilt trans with the old one core trade in. I think when 3rd gear goes out, you can only go about 45mph without over reving the engine. I saw that same problem with a Ford Crown vic with that same transmission and 302 engine that my neighbor had.
Did your third gear just go out all of a sudden or were you getting like a shuttering or kind of a grinding sound when it shifted?

Aug 05, 2011 | 1998 Ford F150 Regular Cab

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HAVE A 1989 FORD F-150 WITH AUTO TRANS THAT YOU CAN'T SHIFT OUT OF THE "PARK" POSITION AT THE STEERING COLUMN. THE TRANY CAN BE SHIFTED AT THE TRANS WHEN LINKAGE IS DICONNECTED.I THINK THE...


What trans? AOD? This is 1992 F Series, all I have.

Shift Controls, Automatic Transmission The transmission shift control linkage or cable transfers the transmission operating mode from the selector lever to the transmission. The indicated transmission position on the steering column is transferred to a shift lever on the bottom of the steering column. On vehicles equipped with cable-operated shift systems, the indicated position of the transmission selector lever is transferred to the transmission through the shift cane, then to the cable, and down to the transmission manual shift lever at the transmission. On vehicles equipped with shift rod assemblies, the rod transfers the indicated transmission selector level position through a bell crank assembly to a control rod. The control rod transfers the indicated position to the transmission assembly.
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Automatic Transmission Manual Linkage Adjustments
  1. With the engine stopped and the parking brake applied, place the transmission selector lever at the steering column in the D (DRIVE position) for C6 applications and in the (D) (OVERDRIVE position) for AOD and E4OD applications, and hold against the D or (D) stop by applying a three-pound force to the selector lever knob.
  1. Loosen the shift rod adjusting nut at point A. Refer to the following illustrations.
  1. Shift the manual lever at the transmission into the (D) (overdrive) position for E4OD, by moving the lever all the way rearward, then forward two detents.
  1. With the selector lever and transmission manual lever in the(D) position, tighten the nut at point A to 17-24 Nm (12-18 ft-lb) torque. Use care to prevent motion between the stud and rod.
  1. Remove the three-pound force from the steering column selector lever knob.
  1. Operate the shift lever in all positions to make certain that the manual lever at the transmission is in full detent in all gear ranges. Re-adjust the linkage if required.
  1. On F-Super Duty Chassis Cab and Motorhome and Commercial Chassis recheck for correct operation of the automatic transmission selector indicator (PRN(D)21). Refer to Section 11-04A, Steering Column, Shift Rod Within Tube. ani_caut.gif CAUTION: Under no circumstances will it be permissible to adjust linkage in any position other than the(D) position for E4OD applications.
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Automatic Transmission Shift Cable Adjustment
  1. From inside the vehicle, place the column shift select lever in the DRIVE position (C6) of the OVERDRIVE (AOD and E4OD). Hang a three-pound weight on the selector lever.
  1. Raise vehicle on a hoist.
  1. Remove the shift cable from the transmission lever ball stud.
  1. Pull down the lock tab on the shift cable body.
  1. Position the transmission shift lever in the DRIVE position (C6) or the OVERDRIVE position (AOD and E4OD). This is three detents from the front-most lever position with the first position counting as one.
  1. Connect the cable end fitting to the transmission lever ball stud.
  1. Push up on the lock tab to lock the cable in the correctly adjusted position.
  1. Lower vehicle down from hoist and remove the three-pound weight from the column shift select lever.
  1. After making the adjustment, check for park engagement. Check the transmission control lever in all detent positions with the engine running to make sure correct detent/transmission actions. Readjust if necessary.

Jun 21, 2011 | Ford F-150 Cars & Trucks

1 Answer

I have a 1997 Kia Sportage (#KNAJA5278VA787759). The automatic transmission used to not shift into overdrive at 60 km/hr, but only after the engine was warm--after about 5 km of driving. The problem...


I had a simular problem.
Ended up changing the themastat and the gears changed into overdrive when the temp. got to normal running.
Be carefull that you get right thermastat though. You want one that reaches the normal working Temp as soon as possable.
Hope this helps.

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2000 volkswagen beetle will not shift into overdrive but runs good in all other gears. It shifts smoothly but overdrive never engages


sounds like an electrical problem with the transmission ...these transmissions are fully electronic and the gears are engaged by servo valves these are controlled by the computer.... if there is any problem with the engine or a few other things it will be put into safe mode and it wont engage overdrive ..it may need to be scanned to see if any codes exist in the auto trans ecm..

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Mech or Elec overdrive


According to Haynes Auto Repair Manual, section on automatic transmissions, the 1994 Towncar has the AODE transmission
Baumann Electronic Controls website
URL: http://www.becontrols.com/tech/ch1alphabet.htm
has following:
The Automatic Overdrive (AOD) transmission was introduced in 1980 as Ford's first four-speed automatic overdrive transmission.
The AOD-E transmission is essentially a beefed-up electronically-controlled version of the AOD.
If this doesn't answer your question, you might troll around the website.

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1 Answer

My 88 F-150 AOD 4wd shifts hard into overdrive (kinda bumps into and out of overdrive) It shifts in and out at the correct speeds its just not smooth. I bought the truck from the original owner and he told...


Fairly normal.
It is a planetary gear system with a conic frustum shaped clutch. So it tends to grab fast and hard. That is good, because then it wears less.

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LATE SHIFTING FOR NISSAN TERRANO


Check transmission fluid after driving for a while, this could be down a bit. If 4 wheel drive, make sure it's in 2H.

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