Ford Transmission :: 1989 AOD Transmission Stuck In Overdrive
May 23, 2010
My '89 Ford Crown Victoria Country Squire is a 5.0L with the AOD transmission. Yesterday, I slowed from 40 mph to 25 mph to turn on my street. As I drove up the street's slight incline I noticed the acceleration was sluggish as if the transmission had not downshifted from 4th to 3rd. When I stopped to back into my driveway, the engine shuddered and stalled as if it was hooked to a manual transmission and I had released the clutch with the shifter in an upper gear. My wife had to push the car into the driveway (she is a Minnesota farm girl ).
Now the engine starts normally with the gear selector in Neutral. It shudders and stalls the moment I try to put it in any gear or Park. The engine will not start in Park, but once again, balks as if I was trying to start a manual transmission equipped car without depressing the clutch or taking it out of gear.
The transmission and engine had been working perfectly before the above sudden problems. My guess is that the transmission is somehow stuck in overdrive.
Is there any way to knock it out of 4th gear? Why would the engine start in Neutral but not Park? It is the original AOD transmission with over 230K miles on it, but this car has at least nine lives and I am hoping this is another serious problem that turns out to be not so serious!
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I have a 2000 Buick Century with 212k miles on it. I would like to sell it. The problem is the transmission overdrive solenoid keeps getting stuck open. It's not a big deal once I get going 55mph or so. It's just that it's kinda "jerky" before getting up to that speed. Is this something that can be fixed by having the transmission system flushed or is it a problem of having to replace the transmission? How do I sell this car (even for dirt cheap) if I have to tell the interested persons that the transmission is going out???? Can I get a thousand bucks for it simply for the fact that it does run? I have been driving it until yesterday, fairly regularly.
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I have an extracted T18 transmission and it appears to be stuck in gear, preventing the Shift Control Housing (top part of trans.) from being removed. Would pulling the shifter remove that top plate? As it is I can get that plate lifted about an inch while I notice the in/output shafts turn, which leaves me to believe it's stuck in gear.
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I and a friend both have 1997 ford F250 Diesel pickups and both at about 140,000 miles have had problems with the transmission going out of overdrive and changing gears at higher than usual rpms. The overdrive light blinks and if the pickup has a day or two it will reset the computer and function normally. Any fix easier than a new transmission???
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I have a 89 f250 4x4 351W FI C6 Auto, recently I was having problems with the trans it was revving up real high before it went into 2nd. I dropped the pan and the valve body to make sure their were no shavings or any other debris. Everything ok.
So I replaced the valve modulator and the line that goes to the intake, replaced the MLPS and adjusted the intermediate band. I put it all back together and NOW it won't even go in gear. Did I hook up the valve body wrong? If so what is the proper way of doing it?
I only unbolted the valve body from the trans I didn't take it apart. I was also wondering whats up with the color strips on the modulator I have purple right now was i suppose to have different color? Could the pin for the modulator not be in place? I added 3 quarts is that to much or not enough?
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Have an 89 F150 WITH 5.0 AOD TRANNY has a hard shutter from 1st to 2nd and shutters hard under low rpm I am Second also shifts rough all the way through and in to od and reverse was wondering what's the possible pro lens and how to fix them....
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We recently purchased a 1991 Minnie Winnie (Winnebago) which rests on a 1990 Ford E350 chassis. It only has 58k miles. While driving on the freeway or highway, the Overdrive starts to go in and out; downshifting and upshifting willy nilly. It has a manual button for turning off the Overdrive and when I do this, it stops jerking and drives smooth. But, of course, this effects the gas mileage significantly. I took the Minnie to a garage recommended by the company I purchased the Minnie from. They replaced the manual Overdrive switch and replaced the transmission with a rebuilt Ford transmission.
We got it back and it was okay for one trip but by the second trip, it was doing the same thing again. I took it back to the garage and since it was under warranty, they put in a new rebuilt transmission, another new Overdrive switch, a new fuel sensor and checked the wiring but it still had the same problem. So they sent the onboard computer board to Ford who rebuilt it. The guys at the garage thought for sure this would resolve the problem. It didn't. They have exhausted their ideas as to what is causing this problem. We love the Minnie Winnie and other than this problem it is in beautiful condition.
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I have a 95 f150 5.0 with a 4r70w Trans. What to check now no overdrive Trans shifts and drives great but no od the od off light on shifter is lit up and just never goes into overdrive solenoids have been replaced and new shift lever and button where do I go from here is not throwing any codes...
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I need to decide what to do with my transmission. I just acquired a 2007 F150 Supercrew 2WD 4.6L truck with 184k miles. While in Drive the automatic transmission (4R75E) runs ok thru 2nd gear and then; if O/D is on it will rev without engaging and if O/D is off it will just stay in 2nd gear.
I was hoping the problem was a broken retainer clip, as are so many others. So I removed the pan, and the valve body. All of the retainer clips seem to be fine, but, there is a lot of metal sludge on the magnet of the pan. See pic.
Should I buy a complete rebuild kit and take the tranny out of the truck? Is it just a problem with the valve body? I need to get the truck going so I can get to work. I am uneducated in the transmission department.
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I have a 2006 F-150 SuperCrew King Ranch. The 4R75E automatic transmission has some sort of fault. In overdrive...intermittently...it stumbles or shudders for a second or two. By feathering the throttle...it calms down. If the overdrive is cancelled, the shifting from 1 to 3 is fine. The fluids and filter have been changed.
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I have an unmodified 2000 Excursion 7.3. with 239000 miles on it. My transmission started to slip in overdrive. I could turn off the OD and it would run fine. I was in upper Wisconsin headed home to Georgia and figured the cold had something to do with it. Drove sixty mile with OD off turned it back on shifted fine and drove 750 mile to Paducah, KY stopped to eat and it started down the road and it slipped again.
Drove 45 miles stopped added 8 oz of tranny fluid and it drove fine back to a friends house and after I dropped him off and headed home it started again. The tranny is serviced every year, new filter, drained torque converter. I use Amsoil Synthetic ATF. I have used the truck to tow a 10000lbs trailer over 65000 miles. I was not towing when this occurred. What is going on? I guess what I am asking is my tranny about to become toast or am I looking at something that can be fixed easily.
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My 2010 F-150 with 170,000 miles - 6R80 Transmission is starting to chatter while shifting into overdrive. It lasts about two seconds and then all is well. I'm sure it will get worse.
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I have a 1993 Aerostar 3.0L, automatic. The transmission has started dropping out of overdrive into drive while at speed. It's very inconsistent as sometimes it will drive without incident and sometimes it will barely go into overdrive and then drop back out and remain in drive for an extend period of time. I changed the fluid/filter/gasket thinking it was just overdue for changing but no luck. The fluid level is fine, perhaps even a little high. Fluid looks clean on the stick, so I don't think it was a lack of draining enough fluid. The problem seems to be more pronounced when warmed up.
Also when cold, I've had an issue with it stalling while taking off from a stop. I wouldn't necessarily relate the two problems, but someone mentioned they thought they might both be a symptom of a slipping torque converter or something. But the stalling issue seems to go away when it's warmed up.
Also had an issue with the van not wanting to start when damp. But I attributed this to water getting on the coil or plugs or something. What I could try before taking it to a shop and risking getting taken?
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My 1994 Ranger keeps shifting in and out of overdrive. It will go into OD easily, but it keeps downshifting, then shifting back up constantly. If I go up hill, if will downshift and stay in drive, but on a flat stretch, it wont stay in OD. It works fine when its cold, but after it warms up, then the shift problem begins. What do I do?
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I have a 1998 F150 with auto lock 4x4 and a automatic transmission. The problem I am having is after setting for about a week I drove it and 1st to second shift normally but when the RMP's/MPH hits time ti shift to third I get RMP increase and no third. I have shifted it manually 1 then 2 and into drive same result RMP's increase just like it is in neutral.
Miles on trans is about 120K have been serviced about 10K ago with no poor color or smell. Mechanic said transmission and filter looked good no metal or junk in oil. I drive down the road and it shifts from first into second then about 35-40 it hits what should be third but nothing free RPM's. I let it slow down to below 35-30 second kicks back in and away we go again until it's ready to shift into third.
I have been told possible speed sensor problem, possible other sensor problems looking for leads on where to look and what items to check. Just had Shop Mechanic drive it and he was baffled for everything looks good that he checked such as oil, and how it drove until it tries to shift into third. No over drive light flashing or anything and no engine codes showing at all everything clean in memory.
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I have a 1990 class C motorhome with a 460ci engine an a E4OD transmission, It shift pretty smooth, but it goes on overdrive mostly only when I go up a hill, and down shift as soon as I reach the top when it should be the opposite. I bright it to a tranny shop, they change fluid and filter and make road test on a plane road and find no problem.
The way I see it is that it shift 1-2-3 then I hit the OD button and it goes on 4, then, if I'm going up a little or asking for more power it upshift another gear(5th ) and when I coming back on a plane road it downshift to the 4th gear until I need more power. It doesn't look normal to me.
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I have a 1989 ford f150 xlt lariat it has a 5.0 and a 5 speed and is 4 wheel drive. Any way I am looking into rebuilding the rear end of the truck the pinion shaft has a lot of play in it up and down and both outer axle bearings seem to have lots of play in them. I believe it is a 8.8 inch in the rear. Just wondering if there hard to rebuild or what it all entails I have never taken one apart before and want to know what I am getting into. I have access to a press and a pinion and carrier bearing puller. the axle bearings i have done tons of them but never had to pull out the carrier. wondering how to set turning torque and backlash etc... and torque specs for everything.
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I have a 1989 tioga 460ford and the trans appears to be slipping when i get around 50mph. The engine revs up but it won't go more than 50. The engine again revs up but there does not feel like the power of the engine is being transferred to the trans. the coach runs fine up until i try to go beyond 50. I have 34000 miles on the rig. Some one suggested that I check the catalytic converter. what else should i look for?
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My 2002 Explorer LTD with 155K miles on it is in terrific shape except for a worsening rough shift into overdrive (automatic transmission) and a clunk which occurs with increasing frequency when I shift into reverse. I would love to keep the car but don't want to spend the money for a new or rebuilt transmission. There is no access for owner approach to transmission fluid - I have already looked in the manual. I would need to take the truck to a garage as I cannot do repairs myself.
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My wife and I have a 2002 Escape and basically love it, however, at my last oil change, at 26,000 miles, I told the service manager about a shudder I was getting from the transmission when it down-shifted from overdrive. He suggested a transmission fluid change since I was in the range that Ford recommends.
That totally corrected the problem for almost 4000 miles, however, the shudder is slowly starting to come back at 30000 miles.
Just yesterday, I took it to my Ford dealer for inspection, oil change and it's 30000 mile check up and I mentioned this problem to the service manager. He suggested that I make an appointment.
The problem is that right now, it is happening so infrequently, if they took it for a test drive, it might happen right away, or not at all, but I know it will get worse as time goes on.
Question. Should I wait until the problem gets worse, and second, what might be the cause?
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My 2005 4.2 L transmission slips in overdrive but I turn off overdrive and it stops slipping instantly. What could be the reason for this does this require an entire trans rebuild or is it an easy fix.
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