Baumann Electronic Controls

Search Our FAQs Match All words Any word Exact phrase
Ask a Question Main FAQ Categories Printer Friendly Version

Help us help you, and others. If you don't see the answer to your question here please submit your question using the "Ask a Question" link above. We will answer your question by email, and post the question and answer here for anyone else that needs to know.

AODE and 4R70W Troubleshooting     List of Categories

Page 1 Page 2 Page 3

  1. What could cause my AODE (or 4R70W) to lose 3rd gear, and Overdrive?

  2. My AODE (or 4R70W) has lost reverse but all other gears work fine, could this be an electrical problem?

  3. i have a 2004 f150 with 4r70w tranny. installed a factory tech plate mod shift kit last weekend. all kinds of problems now. from a stop, it clunks into 1st gear, 1-2 is WAY too firm, 2-3 is perfect, but it goes in and out of 3-OD at random times. when i took the valve body out, a small cone shaped filter popped out, and i did not know where it went back in! i need to know exactly where it goes for one. 2, i really need to know the color and location of the stock accumulator springs. i am going to return it back to stock. 3, when i installed the 2-3 acumulator as the instructions said, all idid was take the stock springs out, and replace the piston with an aftermarket... was i supposed to put the metal bottlecap looking piece back in there as well after the piston? could this be causing problems? iof you happen to have any diagrams of the disassembly of the valvebody area, i'd greatly appreciate it. i cannot find ANY! PLEASE HELP!

  4. My 95 mustang gt aode shifts automatically to diffrent gears 2, 1,3 to neutral.. very erratic.. could it be a sensor ?

  5. I have an AODE/W trans. in a '94 F150. I am experiencing chatter or shudder in 3rd gear at 35-45 mph that disappears after shifting into overdrive. Locking out overdrive with the button does not help. I am thinking torque convertor clutch slippage, but I don't know if this is a centrifugal or electrical lockup. What do you think is the cause?

  6. What would cause my 4r70w in a 95 t bird to down shift for no apparent reason, sometimes all the way to neutral?

  7. My 97 v8 explorer,does not shift into 2nd gear smoothly.Everything else shifts ok.any ideas?

  8. hi!! i just moded my 1994 Ford Mustang engine with gt-40 ported heads,24lbs maf,24lbs delphi injectors,cobra cam,1.7 roller rockers,cold air intake,underdrive pulley's,professional products lower and upper intake,70mm throttle body,1 5/8 headers,magnaflow cat back,190lph fuel pump and a new shift kit from you for my aode transmission.I would like to know what i have to do to set the idle because my engine idle goes up and down when the car is not moving. Do I have to buy something else to resolve my snag?? I've set the throttle body like they said on the instruction. Thanks!!!

  9. my 2000 f150 shifts into 2nd gear roughly. Most of the time the o/d off light will flash. I beleive the code is for a 1-2 shift error. I checked the 1-2 accumulator springs and they were not broken, what else could be wrong?

  10. How do i change the manual shift lever on a 94 AODE Mustang?







  1. What could cause my AODE (or 4R70W) to lose 3rd gear, and Overdrive?

    This could be a small or large problem. We will start with a possible cause that would not require transmission removal. If the car shifts from first to second, and then stays in second, never shifting to third or OD it may have a number 2 shift solenoid that is failing to activate, or failing to seal when activated. This could be caused by a defective solenoid, wiring problem, or bad processor. If you have had any recent electrical problems one of the above problems is more likely. This same condition could also be caused by a stuck 1-2 shift solenoid in the valve body.

    If your transmission shifts from first to second, seems to hold second longer than normal, and then finally neutrals out completely at the point where it would normally shift to OD then the most likely cause is a damaged Direct Clutch Pack. This would require transmission removal and disassembly to repair. The Direct Clutch pack is the last one to come out of the transmission during disassmebly, so plan on a complete overhaul while it is apart. You may also want to upgrade your direct clutch using raybestos blues, or the alto direct clutch pack kit as listed in our AODE Product Section. Another possible cause of the same symptoms is a broken stub shaft. We also offer an upgraded version of this shaft.

    To top


  2. My AODE (or 4R70W) has lost reverse but all other gears work fine, could this be an electrical problem?

    Unfortunately this would have to be a mechanical problem. There is nothing electrical about reverse gear in the AODE or 4R70W transmissions. You could have a bad Low/Reverse Band, or a bad Reverse clutch pack.

    To top


  3. i have a 2004 f150 with 4r70w tranny. installed a factory tech plate mod shift kit last weekend. all kinds of problems now. from a stop, it clunks into 1st gear, 1-2 is WAY too firm, 2-3 is perfect, but it goes in and out of 3-OD at random times. when i took the valve body out, a small cone shaped filter popped out, and i did not know where it went back in! i need to know exactly where it goes for one. 2, i really need to know the color and location of the stock accumulator springs. i am going to return it back to stock. 3, when i installed the 2-3 acumulator as the instructions said, all idid was take the stock springs out, and replace the piston with an aftermarket... was i supposed to put the metal bottlecap looking piece back in there as well after the piston? could this be causing problems? iof you happen to have any diagrams of the disassembly of the valvebody area, i'd greatly appreciate it. i cannot find ANY! PLEASE HELP!

    The small cone shaped filter is the rear lube filter. It goes in the larger of the two holes at the rear of the worm trail in the case.

    The color and location of the stock accumulator springs varies by model year, vehicle type, and factory calibration. I do not have this information. The "metal bottlecap looking piece" you are refering to is most likely the 2-3 accumulator retainer, and while I am not familliar with the factory tech kit I would assume it should have been reinstalled.

    There is also a 1-2 accumulator retainer that is held in by a snap ring that should definitely be reinstalled. Leaving the 1-2 accumulator retainer off would result in no second gear.

    The only diagrams I have here of the valve body are in repair manuals and publishing them on the website would be a violation of the publishers copyright.



    To top


  4. My 95 mustang gt aode shifts automatically to diffrent gears 2, 1,3 to neutral.. very erratic.. could it be a sensor ?

    The most likely sensor to fail is the Transmission Range Sensor. This sensor could cause erratic shifting. A bad output shaft speed sensor could also cause erratic shifting, but these rarely fail.

    To top


  5. I have an AODE/W trans. in a '94 F150. I am experiencing chatter or shudder in 3rd gear at 35-45 mph that disappears after shifting into overdrive. Locking out overdrive with the button does not help. I am thinking torque convertor clutch slippage, but I don't know if this is a centrifugal or electrical lockup. What do you think is the cause?

    The converter clutch is electronically controlled in this transmission.

    The best way to verify that the problem is with the converter clutch is to maintain your throttle position, and lightly touch the brake while the shudder is occuring. When the brake is pressed the computer will momentarily disengage the converter clutch. If the converter clutch is causing the shudder, then the shudder will disappear once the converter clutch turns off.

    To top


  6. What would cause my 4r70w in a 95 t bird to down shift for no apparent reason, sometimes all the way to neutral?

    The most likely cause for this is a malfunctioning Transmission Range Sensor. This sensor is located on the driver's side of the transmission with the shift linkage. If it is giving an improper signal it can cause the transmission to downshift. With the shifter in the OD position, first and second gear are applied through a one-way clutch, and do not have engine braking. This lack of engine braking will make first or second feel like neutral if the vehicle speed is high enough. This could also be caused by defective shift solenoids, or a poor wiring connection.

    To top


  7. My 97 v8 explorer,does not shift into 2nd gear smoothly.Everything else shifts ok.any ideas?

    On the AODE, and 4R70W a harsh shift into second gear is usually caused by a broken lower 1-2 accumulator spring. There are other possibilities, but the broken lower accumulator spring is the most likely one. You may also want to scan the computer for any trouble codes.

    To top


  8. hi!! i just moded my 1994 Ford Mustang engine with gt-40 ported heads,24lbs maf,24lbs delphi injectors,cobra cam,1.7 roller rockers,cold air intake,underdrive pulley's,professional products lower and upper intake,70mm throttle body,1 5/8 headers,magnaflow cat back,190lph fuel pump and a new shift kit from you for my aode transmission.I would like to know what i have to do to set the idle because my engine idle goes up and down when the car is not moving. Do I have to buy something else to resolve my snag?? I've set the throttle body like they said on the instruction. Thanks!!!

    This problem certainly isn't transmission related, but you could try the suggestions on Muscle Mustangs Website. There is also a plate that Ford made to go between the idle air motor and the throttle body. This plate has an adjustable orifice to change the airflow through the idle air motor to help with idle surges.

    To top


  9. my 2000 f150 shifts into 2nd gear roughly. Most of the time the o/d off light will flash. I beleive the code is for a 1-2 shift error. I checked the 1-2 accumulator springs and they were not broken, what else could be wrong?

    You could have excessive slippage on your intermediate clutch pack, or a problem with your shift solenoids. Generally a 1-2 shift error code would mean that the computer didn't see the engine rpm drop when it expected it to. Also a slipping clutch can make for a harsher shift when it does finally engage.

    To top


  10. How do i change the manual shift lever on a 94 AODE Mustang?

    Start by removing the pan. Next you will need to loosen the nut inside the transmission that holds the shift lever shaft to the rooster comb (the plate that has the detents for the gears, and the pin for the manual lever). There is also a roll pin that holds the shaft in place that will need to be pulled out with some needle nose pliers. Once the nut and roll pin have been removed the shifter lever will slide out.

    To top


Page 1 Page 2 Page 3

Was this page helpful?    



Baumann Electronic Controls, LLC
207 Mistr Lane
Pickens, SC 29671
Phone: 864-335-9365
Fax: 864-335-9055

All information, text and graphics contained within this site are the exclusive property of Baumann Electronic Controls, LLC and may not be used or reproduced in any form without the express written consent of Baumann Electronic Controls, LLC.

Last updated on January 5th, 2008