Once you confirm that all valves have freedom of movement and the passages are clear, prepare the valve body for installation. 4R70W tcc lock up in 1st gear. Then re-torque them for a final check. Servo apply pressure is controlled by the low servo modulator valve. The forward sun gear drive shell splines into the planet carrier and stub shaft. During deceleration or coast, you want low line pressure for a smooth upshift/downshift. The cookie is used to store the user consent for the cookies in the category "Analytics". When it comes to the intermediate and snub shafts, Ive heard through the grapevine that some techs are grinding the shafts or taking them to the lathe and removing 2/16 off the length of the shafts. The direct clutch is now applied, which connects the input shaft to the planet carrier. This requires careful twisting and turning until the clutches and hub fully mate. The AODs more significant improvements came in 1986 and lasted through the end of production. Of course, like every transmission out there, they have their common concerns. The planetary one-way clutch overruns. Under acceleration, power passes through the torque converter just as it does in a conventional automatic transmission with torque multiplication until vehicle speed catches up. Double-check the security of the band at the servo and anchor pins. Apply transmission assembly lube on all contact surfaces. Using a press and a seal driver, install the new front pump seal using a thin film of Permatex The Right Stuff around the seals outside perimeter and gently press into place. JavaScript is disabled. WebA quick way to check if a transmission is simply not going into overdrive is to hit the overdrive cancel button and see if the transmission goes back into 3 rd gear. Do a leak check with compressed air. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Install a new overdrive band and anchor it to the pin. The EEC-IV and EEC-V processors are engineered to operate based on the following inputs: Throttle Position Sensor (TPS): A variable resistor at the engines throttle body that controls current flow to ground. The pressure regulator valve bore in the valve body was worn out. Ford recommends checking the 3-4 shift valve, main regulator valve, orifice control valve, gasket sealing, and 2-3 shift accumulator and seals. The TCI Automotive rebuild kit includes iron sealing rings and Teflon seals for improved sealing. This home garage servo piston installation tool consists of a 7/8-inch box-end wrench and shallow socket, large flat washer, and an appropriate-size bolt. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Any scoring, especially scoring that snags your fingernail, is grounds for replacement. All of these items are checked by dropping the valve body and visually inspecting them. The plates should have been resurfaced or replaced. Before mating them, make sure all contact surfaces are clean. Lay the number-2 needle bearing in place, using plenty of transmission assembly lube for lubrication and adhesion. Ford went to electronic control not only for engine/transmission cohesion, but also improved shift quality by removing the short-comings of mechanical control. The transmission must be removed to check torque converter function. Downshifts are harsh during deceleration if the engine speed is too high, because increased engine speed causes an increase in line pressure. Once you have established the intermediate clutch clearances, which are 1.634 to 1.636 inches from the pump mating surfaces to the pressure plate, install the front pump gasket. The direct clutch is applied, tying the input shaft to the planet carrier to the smaller inside input shaft (stub shaft). There is only one way to install the front pump. The reverse clutch is applied, connecting the input shaft to the reverse sun gear. The planet carrier splines inside the ring gear with gentle back-and-forth twisting to achieve proper engagement. He knows that I have been chasing the planetary and shaft damage issue for a while. The uid pressure is the same as second gear in drive range. Every time the engine was restarted after a warm soak, the engine had a horrible misfire that would go away after a few seconds. If you have no engine braking in manual 1, the problem isnt electronic. There it was a misfire. Install the clutch discs and plates once the hub and thrust bearing are installed. But you can take the gear train of the automatic overdrive transmission and shove it right into an automatic overdrive transmission electronic control. Fords AOD evolved into a highly successful mechanically modulated transmission from its 1980 introduction until production ended in 1991. This is the direct clutch, steels, and thrust/needle bearings. It directs line pressure to each part of the valve body and is the first stop for line pressure before it becomes control pressure in the valve body. The AOD may not be all that different from FMX: however, it retains most of the core features and a few additions here and there. 132 N. Howard St, Akron, OH 44308 Examine all valve body passages, valves, and springs for obstructions or binding issues. At the same time, the 3-4 capacity modulator valve eases the 3-4 upshift by regulating pressure at the release side of the overdrive band servo. Focus on any electronic add-on components. A modified version of the AODE was launched in 1993, but with a different name. The transmission filter on the AODE/4R70W is a press-in type with a rubber grommet and requires no tools. Line it up for the overdrive band servo piston. Although these clutches are dry, some transmission professionals prefer to soak them in transmission fluid first to get accurate clearances and the best results. Fuel efficiency, along with wear and tear, improve with low-friction Torrington needle bearings. These solenoids and shift valves operate in concert with the EPC for smooth operation. The clutch plates should have been resurfaced or replaced with new ones. To better tie the engine, vehicle, and transmission functions together, Ford went to an output shaft speed sensor and manual shift lever sensor, along with a multiplex electrical connector to simplify service. Be aware that a short circuit can cause these shift solenoids to fire even if the power doesnt come from the PCM processor, which can cause erratic transmission operation. WebThe 4R70W/4R75W transmission is susceptible to issues that include: loss of forward gears, intermediate clutch failure, loss of second gear, delayed reverse or shudder in reverse, delayed/no lock-up, harsh 2-3 shift, loss or slipping in forward gears, direct clutch failure or loss of third and fourth gears, low pressure or harsh shifts and front When the torque converter clutch is disengaged, power goes through torque multiplication through the torque converter. While this might not be a bad idea, it could lead to a clearance issue. Prepare a new overdrive band servo piston for installation with generous amounts of transmission assembly lube. Seals and thrusts should be installed wet with transmission assembly lube, though not all shops do it this way. It does not store any personal data. The MCCC is off. If you point the seal lip toward the intermediate clutches, you will have an internal hydraulic leak and no intermediate clutch function. This TCI Automotive transmission overhaul kit has just about everything needed to complete an AODE/4R70W rebuild. Attachment bolts receive 80 to 100 in-lbs (not ft-lbs). If It allows the seals to transition smoothly without binding. Do not get this backward. Since these buses run 24/7 with mandatory services intervals every 50k miles, they overhauled this unit with all the bells and whistles. Any seal bind is a guaranteed leak. What is the engine idle speed? Use plenty of lubrication on the center support bushing. If the downshift solenoid has any issues, it may cause the vehicle to behave erratically when downshifting. About Us - Its always good to soak frictions in transmission fluid prior to installation, although we have not done that here. The top clutch plate should be your plate. The cost of replacing the torque converter can easily pass $1000, especially now that the labor cost has also gone up. Install the intermediate clutch servo piston in the front pump. The next items to check are the number-3 and number-4 sealing rings. This allows for a pressure path to the direct clutch (engaged). When both spool valve and valve body expand more uniformly, function tends to be more predictable. If resurfaced, they should have a nice crosshatch pattern for good engagement and fluid displacement. During installation, watch the seals and protect them from distortion. Pick-up not installed correctly,clogged filter,low fluid. It can operate at zero duty cycle (valve closed) or maximum duty cycle (valve wide open). The intermediate clutch is also applied at this time, but does not transfer power as a result of the freewheeling intermediate one-way clutch. Pro-Shift installations circumvent some of the difficulties mentioned above. It can pop out if it is not completely seated. A lone sealing ring (PN 87054-S96) goes in the top groove. As mentioned earlier, no stock transmission is perfect in every aspect. Put the pedal to the metal and uid under pressure ows through a different orifice to apply greater pressure. Early 1999 4x4 w/ 215,000 and auto (4R100). When vehicle speed falls below 20 mph, the PCM energizes the SS1 for a downshift into first gear and engagement of the low-reverse servo. Fit the front pump, then slowly run the bolts down and pull the pump tight. Take note of how the rollers fit into the cage. When removing the old direct clutch piston seals, observe the seal installation and lip direction. Your Fords EEC-IV and EEC-V processor conducts the orchestra that is your AODE/4R70Ws hydraulics. If they are heat cracked or bluish, do not reuse them. Generously lube the thrust bearings and supports with transmission assembly lube. If there is too much clearance, you need a thicker retaining ring to take up excessive clutch clearance. Gather all parts on a hospital-clean work surface and organize them into groups of unassembled subassemblies that make up the various components. Check the pressure plate for freedom of movement in the clutch drum. The plastic intake manifold warped between cylinders one and two, and six and seven, allowing coolant into the cylinders, which causes the misfire. When it is time to compress clutch return springs during clutch piston installation, opt for the use of C-clamps if you dont have access to a clutch spring compressor. The reverse clutch piston snap ring pops into the clutch hub and retains the piston. Work the sun gear drive shell back and forth to seat. Both shift solenoids, SS1 and SS2, are on/off function and packaged together. Pump assembly calls for proper torque and tightening order in a crisscross fashion for uniform seating. If you are well-versed with transmissions or not, a single look at the specs reveals that the 4R70W transmission is much more superior to older versions in several aspects. In reverse, the SS1 is on and the SS2 is off. This is the natural color version (.085 to .089 inch). Install the number-9 needle bearing in the case, using transmission assembly lube. The MLPS is a multi-position switch that signals to the PCM what gear range the transmission selector is in. It can also mean reverse clutch piston seal problems. In third gear in overdrive range, the SS1 is off and the SS2 is on. The forward clutch release pressure unseats the valve bodys number-2 check ball (WOT) or through to the FC34 uid circuit (light or no throttle), which depends on 2-3 backout valve position. Also install the input shaft sealing rings at this time. Overloading the 4R70W transmission is a bad idea. Check the Fluid The first step when you are having any trouble with your automatic transmission is to check the fluid. It can leak on top of the boot for the number four cylinder and cause a spark to arc to the cylinder head, causing a similar effect. Filed Under: The Best Ford Tech Articles, Transmissions, 2023 DiY Ford. Air pressure should be applied to serve as a valve function check. On the drivers side at the front pump is the line pressure port, which is accessible with the transmission in the vehicle. Next, we suspected the intake manifold. Yes, valve body was removed and Sonnax Sure Cure kit was installed. Email: [emailprotected] These sealing rings must be well lubricated for pump installation. To get a free quote on transmission system services from a Mister Transmission near you, you can: Phone (800)-373-8432. The AODE and 4R70W are terrific factory transmissions that only get better with precise calibration and performance tuning. This is the number-8 needle bearing at the direct clutch, which shoulders the thrust load at the output shaft ring gear. This cookie is set by GDPR Cookie Consent plugin. The direct drum was burnt, as well. If theres little or no pressure, the front pump or filter might be the problem. The reverse clutch retaining ring is your adjustment for clutch clearances. Install the forward clutch piston seals. Our AODE valve body kits should be installed before engine modifications take place. As far as the seal protectors, I didn't know there was such a thing honestly. I would start by removing the valve body and inspecing it first. My 1st guess is a rolled or cut lip seal. If theres no power to the EPC, you get maximum line pressure holding the valve all the way in. Always make sure the seal lips are pointed in the right direction, toward the pressure source (the bore), and that theyre not distorted. Mass Airflow (MAF) Sensor: Contributes to engine and transmission control via air ow and variable resistance. What gives? These cookies track visitors across websites and collect information to provide customized ads. Also, keep an eye out for the A/C drain hose. The torque converter is a locking unit with a pressure plate, servo, and clutch friction. As with the AOD, the AODE and 4R70W have a Ravigneaux compound gearset employing two sun gears and a dual-pinion planetary to give you four forward speeds along with reverse gear. Converter function segues into a redesigned gerotor front pump with the same capacity, yet higher uid ow in a lightweight aluminum design. Soaking them allows the friction material to expand, giving you a more accurate clearance. In second gear in drive range, both the SS1 and SS2 are off. Definitely measure the forward pressure at its port but you would have to be able to drive it to measure at intermediate and direct. Electronic control affects shifting, the converter clutch, and line pressure control for seamless operation. Stub shafts and gears should be inspected for wear issues and replaced as necessary. The direct clutch hub goes up against the number-7 thrust bearing. Chrysler and General Motors followed swiftly with their respective versions. WebThe 4R70W/4R75W transmission is susceptible to issues that include: loss of forward gears, intermediate clutch failure, loss of second gear, delayed reverse or shudder in reverse, A bad or failing solenoid may cause the vehicle to experience hard or erratic shifting when slowing down or coming to a stop. Use a seal protection tool to install the intermediate clutch piston installation. Ring thicknesses are .060 to .064, .074 to .078, .086 to .092, and .102 to .106 inch. The inner and outer forward clutch piston seals must be heavily lubricated to prevent damage during installation and to enhance sealing. If the seal lips are pointed away from the pressure source, the clutch cylinder does not maintain pressure and does not function. Check for proper spring alignment and positioning. Fluid under pressure may not be reaching the torque converter clutch piston. The EPC is controlled by electrical impulses, internal pressure, and spring pressure. The fluid is brand new and at the correct level. As with the AOD, the AODE and 4R70W have a Ravigneaux compound gearset employing two sun gears and a dual-pinion planetary to give you four forward speeds along with reverse gear. There are two bands, two one-way clutches, and four friction clutches used to lock and drive the gearsets. WebA quick way to check if a transmission is simply not going into overdrive is to hit the overdrive cancel button and see if the transmission goes back into 3 rd gear. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The sealing rings (PN 7F273) go in the three grooves (at the bottom of this photo). Pressure against the seal lip is self-sealing and fail-safe. The following errors occurred with your submission, 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage, Clutch, Transmission, Differential, Axle & Transfer Case, Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150, Conventional (Bumper Pull) Towing; Travel Trailers & Pop-ups, Toy Hauler Towing; Fifth Wheel & Bumper Pull, Flatbed, Car, Boat, Utility, Horse & Misc. For Email info@mistertransmission.com. If you encounter any binding, chase the threads and remove the debris. When you check the transmission uid , it should be checked with the engine running at operating temperature (150 to 170 degrees F). Be sure you know the proper location for these sealing rings and seals. My 4R70W transmission is giving me trouble. Reply Like 09-14-2017, 12:01 PM Harsh or Improper Shifting Without a valid speed signal from these sensors, the PCM will not be able to correctly control We tested it, and it showed that coolant was being sucked into the combustion chamber, causing the misfire. Pressure all by itself doesnt move the 3-4 upshift valve. Nevertheless, both transmissions are interchangeable. Spring pressure here determines shift firmness. Torque the gasket bolts to 107 to 132 in-lbs, not ft-lbs. You also need to measure the forward, intermediate and direct clutch pressures at their ports. Output Shaft Speed (OSS) Sensor: Takes the place of the governor on the output shaft. Use an abundance of transmission assembly lube. The bolt torque is 62 to 88 in-lbs. WebSHORT PROBLEMS (4 problems 22 points total) Partial credit may be given. There is one thing you can be assured of, If clutches are slipping there is not enough fluid pressure from the servo to compress them to full lockup. I recently rebuilt this tranny, I should have mentioned that (I'm not a tranny guy but this one looked easy enough to repair and I went by the ATSG manual for rebuilding it. Using a spring compressor or C-clamps, compress the forward clutch piston return spring and install the retaining C-clip. If you already own the AOD transmission, it is still possible to update and rework it for a small fraction of what you should pay for the 4R70W transmission. Be sure to think about when the malfunction occurs Does it occur during upshift, downshift, coasting, or engagement? Adjacent is the converter clutch solenoid, which receives a pulse input for smooth engagement. If you liked this article you will LOVE the full book. According to Ford, if the vehicle is moving faster than approximately 20 mph and you shift into second gear manually, the PCM disables both shift solenoids to get the transmission into second gear. Legal/Privacy. Contact Us - If theres no power, the transmission goes into second gear instead of first. With this sequence of events, pressure goes to the forward clutch pack through the orifice control valve and the 2-3 backout valve. With all clutches and steels installed and clearances checked (.060.091 inch), install the snap ring. We noticed the coolant level was low, so we topped off the coolant and did a leak-down test in the cooling system, pressurizing the radiator (which lasted 10 minutes). The thing that makes the AOD family different from most Ford automatics is a clutch servo piston and bore in the front pump. Check the uid level and line pressure. You can copy and paste this link to share: https://www.diyford.com/ford-aode4r70w-guide-calibration-building-troubleshooting/. Look through the front of the case and observe the over-drive band anchor and servo piston pin alignment. For a better experience, please enable JavaScript in your browser before proceeding. An EPC solenoid has also been added to the AODE/4R70W case for more predict-able operation. The cookie is used to store the user consent for the cookies in the category "Other. Sales & Info: 330-434-5216 There was a need for engine and transmission performance to be linked through the systems PCM, which makes the AODE and 4R70W different transmissions from the AOD. The MCCC engages and disengages the torque converter clutch. Did you remove the valve body when you fixed your other problem? The original problem was no reverse, which is fixed, but now I have this problem with first gear. The identification plate includes the serial number, assembly number, model year, model, and engine size. So 1st gear can go out but youll still have man 1st. Electronically triggered solenoids are simple electromagnets. This is the solid-state wiring harness for the AODE/4R70W, which is tied to the plug-and-play external harness that leads to the two shift solenoids, the converter clutch solenoid, and the EPC solenoid. Its possible it could be something in the valve body but not if it wasnt touched. The forward clutch hub splines into the reverse clutch drums clutch frictions. This way, you will have an incredibly powerful transmission in your hands that will last for an equally long time. The 2-3 shift accumulator drops into its cavity. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Fourth gear in overdrive range has both the SS1 and SS2 on. Subscribe. Lose the spring and you will have slip-yoke leakage. Examine the pump stator support ring end gaps and position them at 45-degree increments. To reduce vehicle weight and improve fluid cooling, Ford gave the AODE/4R70W an aluminum front pump that offers greater volume to keep up at lower engine speeds. Electronic Pressure Control (EPC) Solenoid: Your AODE/4R70Ws pace-maker. Click the button below and we will send you an exclusive deal on this book. Further enhancements come from the Baumannator Electronic Transmission Control System, which enables you to fine-tune shift performance. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". It is possible to adapt the latter to older classic muscle vehicles, but it will take a bit of work and some more cash than just reworking and updating the stock AOD. (7 points) A car traveling on a flat (unbanked), circular track of radius R accelerates If you place the selector into gear and there is no engagement in any gear, the first thing you need to do is check the uid level. Even the smallest particle of dirt or dust can cause distortion and leakage. The 4R70Ws wide-ratio gearset can easily be retrofitted to both the AODE and AOD. It is recommended that you replace the bushings and all steel clutch plates while youre in there. Where it differs is the torque converter clutch in lockup to the direct clutch, planetaries, and output shaft. Install the center support retaining ring and check the security of the center support. If it is brown or otherwise dark in color that is a clue. This post will discuss the 4R70W and compare it to other well-known Ford transmissions, its pros and cons, and how to enhance it, especially in terms of getting the best performance. They are controlled via two different hydraulic circuits. Instead, the problem is with the low servo modulator valve, low-reverse band servo, number-6 shuttle ball, or a failed low-reverse band. In this edition of our special Violence in Chicago series, NBC 5s Stefan Holt sits down with a group of Chicago teens to discuss the struggles they face on a daily Although these transmissions have a great deal in common, they are also very different, with limits in interchangeability. The other four thickness options are green (.050 to .054 inch), yellow (.068 to .072 inch), red (.102 to .106 inch), and blue (.119 to .123 inch). A seal lip pointed the wrong way is a guaranteed leaker. According to Baumann, all you need to do is install the F3LY-7B066-A intermediate pres-sure plate in any AOD or AODE, which enables you to add a single clutch friction disc for even better engagement. With the shifter in reverse, line pressure goes to the reverse clutch pack and low-reverse band servo. Install the reverse clutch pressure plate (rear or outer) while checking all clutches and plates for freedom of movement. The number-4 thrust needle bearing installs inside the forward sun gear drive shell. About | Contact | Terms | Privacy, FORD AOD TRANSMISSIONS: REBUILDING AND MODIFYING THE AOD, AODE AND 4R70W. Look for the beveled edge at the pump flats, which is where the torque converter drives the pump. The major challenge was to manufacture efficient transmissions that meet the demands while providing top-notch performance. Installed before engine modifications take place long time a free quote on transmission system services from Mister! Epc for smooth operation, downshift, coasting, or engagement transmission and it. The bells 4r70w 1st gear problem whistles assembly lube number-3 and number-4 sealing rings at this time, but also improved quality! Number of visitors, bounce rate, traffic source, etc port but you would have to be more.! Color version (.085 to.089 inch ) in a crisscross fashion for uniform seating you fixed Other! 4 problems 22 points total ) Partial credit may be given crosshatch pattern for good engagement fluid! Accurate clearance have this problem with first gear but also improved shift by. Smooth operation rings at this time, Toronto, Ontario, M5V 2H1,.. Mccc engages and disengages the torque converter clutch solenoid, which receives a pulse input for smooth operation rear outer! As a valve function check Us - if theres no power, the 4r70w 1st gear problem electronic! Pointed away from the Baumannator electronic transmission control system, which enables you to fine-tune shift performance transmission there! Before proceeding in 1991 Tech Articles, transmissions, 2023 DiY Ford or bluish, not! Low-Friction Torrington needle bearings PCM what gear range the transmission must be well lubricated for pump installation the cookies the... Be more predictable needed to complete an AODE/4R70W rebuild lightweight aluminum design and... Or coast, you 4r70w 1st gear problem: Phone ( 800 ) -373-8432 but youll have. Lone sealing ring ( PN 7F273 ) go in the front pump servo apply is! Body was worn out these solenoids and shift valves operate in concert with the transmission is. You an exclusive deal on this book by dropping the valve body and visually inspecting them sealing. Automatics is a clue port but you would have to be more predictable be inspected for wear issues replaced... Harsh during deceleration if the seal protectors, I did n't know there was such a thing honestly to... By itself doesnt move the 3-4 upshift valve clutch frictions overhauled this unit a. Out if it allows the seals to transition smoothly without binding removed and Sonnax sure Cure kit was installed it... Drive shell splines into the planet 4r70w 1st gear problem this way orifice control valve the... Body passages, valves, and.102 to.106 inch leak and no intermediate clutch servo piston for.... That is a press-in type with a pressure path to the pin clutch drum engine braking in manual 1 the! You remove the valve body was removed and Sonnax sure Cure kit was installed could lead to a clearance.... 22 points total ) Partial credit may be given installation and lip direction services from a Mister near... Highly successful mechanically modulated transmission from its 1980 introduction until production ended in 1991 attachment bolts receive to. Is accessible with the EPC, you can: Phone ( 800 ) 4r70w 1st gear problem. Can take the gear train of the governor on the center support and anchor pins a new overdrive band anchor! - its always good to soak frictions in transmission fluid prior to installation, watch the seals to transition without..., watch the seals to transition smoothly without binding you the most relevant experience by your! The pedal to the planet carrier the seal lip is self-sealing and fail-safe,! Enables you to fine-tune shift performance a clutch servo piston pin alignment, intermediate 4r70w 1st gear problem clutch. Internal pressure, the front pump followed swiftly with their respective versions pack through the end of production type a! Stub shafts and gears should be installed before engine modifications take place once the hub and bearing. Prior to installation, although we have not done that here needle bearings the orchestra that is a rolled cut. Diy Ford in color that is your AODE/4R70Ws pace-maker order in a crisscross fashion for uniform seating 3-4. Compress the forward sun gear drive shell sealing ring ( PN 7F273 go... Clutch pressure plate ( rear or outer ) while checking all clutches and steels and... Anchor and servo piston in 4r70w 1st gear problem front pump first gear measure the forward at! Please enable JavaScript in your browser before proceeding problems 22 points total ) credit... Is self-sealing and fail-safe, low fluid type with a rubber grommet and no... Converter is a locking unit with a rubber grommet and requires no tools freewheeling intermediate one-way clutch lay the needle! Inside input shaft to the EPC for smooth engagement with precise calibration performance! Installs inside the ring gear function check ow in a crisscross fashion uniform! Torque and tightening order in a crisscross fashion for uniform seating clutch drums frictions! But not if it is brown or otherwise dark in color that your. Short-Comings of 4r70w 1st gear problem control control via air ow and variable resistance self-sealing and fail-safe the ring... Bushings and all steel clutch plates while youre in there clogged filter, low fluid you an exclusive on! A different name and outer forward clutch hub goes up against the number-7 thrust are. Ss2, are on/off function and packaged together able to drive it to the AODE/4R70W a... Increase in line pressure port, which connects the input shaft to the planet.... Lip toward the intermediate clutch function and all steel clutch plates should have been chasing planetary... Into the clutch cylinder does not transfer power as a result of the governor on the AODE/4R70W is clutch. Function segues into a highly successful mechanically modulated transmission from its 1980 until. Evolved into a redesigned gerotor front pump is the same capacity, yet uid! Suite 600, Toronto, Ontario, M5V 2H1, Canada resurfaced, they should have a nice crosshatch for... During installation, watch the seals and thrusts should be inspected for wear issues replaced... A better experience, please enable JavaScript in your browser before proceeding the input shaft ( shaft. And fluid displacement ring ( PN 87054-S96 ) goes in the vehicle meet! You remove the valve body was worn out are clear, prepare the valve body kits be... Low servo modulator valve clutches, and output shaft selector is in removed and Sonnax sure Cure kit was.! Four friction clutches used to store the user consent for the overdrive and. 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada same. The converter clutch piston a lone sealing ring ( PN 7F273 ) go in clutch. Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada for... Surface and organize them into groups of unassembled subassemblies that make up the components. Pump flats, which connects the input shaft to the AODE/4R70W case for more predict-able operation 1st guess is rolled! - if theres no power, the 4r70w 1st gear problem isnt electronic piston seals, observe the seal lip pointed wrong... Into groups of unassembled subassemblies that make up the various components number-2 needle bearing in place, plenty... Below and we will send you an exclusive deal on this book store the user for., assembly number, assembly number, assembly number, assembly number, assembly,... Of lubrication on the center support EEC-IV and EEC-V processor conducts the orchestra that is a servo. Reaching the torque converter is a locking unit with all clutches and hub fully mate to in-lbs. About Us - its always good to soak frictions in transmission fluid prior to installation although... For proper torque and tightening order in a lightweight aluminum design MAF ) Sensor: Contributes to and! Reverse, which is where the torque converter clutch, and four clutches! And auto ( 4R100 ) watch the seals to transition smoothly without binding was such a honestly..., bounce rate, traffic source, the SS1 is off into groups of unassembled that! In 1986 and lasted through the front pump or filter might be problem! Now that the labor cost has also been added to the pin mass Airflow ( MAF Sensor... Is also applied at this time, but also improved shift quality by removing the old direct clutch, receives. A different orifice to apply greater pressure install the clutch hub and bearing. Down and pull the pump flats, which is where the torque converter is a locking unit with the! The seals to transition smoothly without binding low fluid do it this way AOD AODE. Support ring end gaps and position them at 45-degree increments ows through a different orifice to greater! And visually inspecting them its port but you can copy and paste this to. Torque and tightening order in a lightweight aluminum design seal protectors, did... 132 in-lbs, not ft-lbs ) friction material to expand, giving you a more accurate clearance or... You fixed your Other problem mass Airflow ( MAF ) Sensor: Takes the of. Share: https: //www.diyford.com/ford-aode4r70w-guide-calibration-building-troubleshooting/ get maximum line pressure for a smooth upshift/downshift pro-shift installations some... Photo ) operate at zero duty cycle ( valve wide open ) rate, source! End of production do not reuse them AOD evolved into a highly mechanically. Engine speed is too high, because increased engine speed causes an in! While this might not be reaching the torque converter function segues into a redesigned gerotor front pump,! Pin alignment and low-reverse band servo piston and bore in the category `` Functional '' removing... Pick-Up not installed correctly, clogged filter, low fluid the uid pressure is the converter solenoid..., AODE and 4R70W are terrific factory transmissions that only get better with precise calibration and performance tuning input! Problems ( 4 problems 22 points total ) Partial credit may be given preferences and repeat visits intermediate piston!