It wasnt all that different from the FMX 3-speed automatics since common FMX components such as the Ravigneaux gear train, etc. Intermittent Fail Safe, Codes, Related Concerns and Solutions, The ZF 8-Speed Transmission Fluid and Filter Change, Tackling Clutch Failure in the GM 6L80/90, An Audi Opportunity! Did the problem arise after transmission service or part replacement? Pick-up not installed correctly,clogged filter,low fluid. In final drive, however, power passes through the unit differently. Ring thicknesses are .060 to .064, .074 to .078, .086 to .092, and .102 to .106 inch. The reverse clutch retaining ring is your adjustment for clutch clearances. Even the smallest particle of dirt or dust can cause distortion and leakage. 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. (7 points) A car traveling on a flat (unbanked), circular track of radius R accelerates Electronic Pressure Control (EPC) Solenoid: Your AODE/4R70Ws pace-maker. As mentioned earlier, no stock transmission is perfect in every aspect. Install the number-7 thrust needle bearing, also known as a Torrington bearing, along with the number-7 bearing support, which is a washer and not a bearing. This drain hole must be at 6 oclock. Shop Finder Pressure against the seal lip is self-sealing and fail-safe. It can pop out if it is not completely seated. 1. If you point the seal lip toward the intermediate clutches, you will have an internal hydraulic leak and no intermediate clutch function. Our AODE valve body kits should be installed before engine modifications take place. Another possibility is a leaking 1-2 accumulator cover or piston seal. I have measured the plate bowing upwards as In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction. 178 subscribers. Keep in mind, Reverse does not use a solenoid 'like' the forward gears. Filed Under: The Best Ford Tech Articles, Transmissions, 2023 DiY Ford. Install the low-reverse band servo piston return spring. Use an abundance of transmission assembly lube. Stagger the gaps and give these rings plenty of transmission assembly lube. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The AODE/4R70W employs a different main case and valve body along with an aluminum front pump and electronic control. If it is brown or otherwise dark in color that is a clue. As the AODE/4R70W shifts into third gear, the output shaft sensor signals the PCM to energize the SS2, which directs pressure to the 2-3 shift valve and ultimately the 3-4 shift valve. 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. The 4R70W differs from the AODE in terms of gear ratios. 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. Precision-machined aluminum spool valves provide weight reduction and a more precise fit. Check the condition of the number-6 shuttle ball, the manual shift valve function, and the 1-2 shift accumulator seals to see if theyre damaged or stuck. I'm having a problem with my transmission in my 2003 Ford F-150 4x4 (4R70W). What is the engine idle speed? Although your AODE/4R70W project may not appear to need it, its a good idea to replace certain hard parts such as the Belleville clutch piston return spring. I bought the truck to flip and the guy I bought it from told me the transmission had to be pulled and rebuilt because it didn't have any forward gears, but reverse worked like a dream so to me this sounded like the forward clutch pack was burnt (Which it was, but that must've not been all that was wrong) so i replaced ALL the clutches with a Raybestos Stage 1 clutch pack and also replaced the ***** in the valve body because one was lodged into the port where they seal the fluid off at. This cookie is set by GDPR Cookie Consent plugin. With the locking converter comes a wider bellhousing than the AOD has. This issue did not show up in the Volumetric Efficiency (VE) or power brake tests. 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. Online Buyer's Guide The AODE/4R70W has two forms of front pump sealing: a gasket and a seal to prevent leakage. Fax: 330-434-3634, 2023 Gearstar Performance Transmissions. There are other issues with these valve bodies you should look for, like flooding solenoids, shift valve spring weakening, and leaking plugs. You can copy and paste this link to share: https://www.diyford.com/ford-aode4r70w-guide-calibration-building-troubleshooting/. What gives? The MCCC is controlled by the PCM. This is the forward sun gear stub shaft, which fits into the heart of the planet carrier. If they are heat cracked or bluish, do not reuse them. Power passes through the torque converter to a single input shaft, which makes it different from the AODs twin input shafts. Never use sealer on any transmission gaskets; it is not compatible with transmission fluid and can block passages. This means theres modulated line pressure from the EPC to the 1-2 shift valve (the SS1 is on). Overloading the 4R70W transmission is a bad idea. Do not get this backward. Troubleshooting the AODE/ 4R70W begins with ascertaining the problem. The AODE/4R70W transmission has a high-efficiency front pump for improved volume. Never reuse old bearings or seals. 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. For The forward and reverse clutch assembly installs in the main case. In reverse, the SS1 is on and the SS2 is off. Rollers become pitted, and this isnt always visible. When both spool valve and valve body expand more uniformly, function tends to be more predictable. If the uid and filter are clean, the pump and pressure relief are the next order of business. Terms of Service - It does not store any personal data. Install a new overdrive band and anchor it to the pin. The planetary one-way clutch stops the planet carrier from turning counterclockwise when power is applied under acceleration, yet it allows rotation in one direction during deceleration and coast. Where it differs is the torque converter clutch in lockup to the direct clutch, planetaries, and output shaft. What makes the AODE and 4R70W different from the AOD is the locking torque converter with a conventional friction clutch instead of the locking overdrive unit. AODE units through 1995 are standard ratio with 2.40:1/1.47:1 gearsets, except those installed behind the 4.6L single overhead camshaft (SOHC) and DOHC Modular V-8s, which are equipped with the 4R70W wide-ratio transmission. This cover contains line pressure at the 1-2 shift accumulator. The case size is the same as the AOD. First gear isnt usually the first to go (no pun intended) on the 4r70w. Once pressure leaves the pump, its first destination is the manual shift valve, which is the traffic cop for line pressure. 4r70w no first gear/neutral drop condition. Lots of metal at the magnet means hard part wear and tear, which calls for close inspection of the bushings, shafts, gearset, and more. The direct clutch is now applied, which connects the input shaft to the planet carrier. 1. If your AODE/4R70W experiences no 3-4 upshift, it is a sticking 3-4 shift valve, overdrive servo issue, or a failed overdrive band. The only inter-changeable components are geartrain related. Click the button below and we will send you an exclusive deal on this book. Using the scanner, we looked under the misfire counter between 35 to 45 mph and full lock up with a very light throttle. Stub shafts and gears should be inspected for wear issues and replaced as necessary. Generously lubricate the seal lip with assembly lube. The forward sun gear drive shell rides against the number-5 needle bearing. But then, the 4R70W is also not a great place to end your search either. The forward clutch piston installs using a Lip Wizard. If you dont have a press, just about any machine shop has one. 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. 4R70W tcc lock up in 1st gear. Check the vehicle (visually inspect the vehicle). I did not do much with the valve body, I'm wondering if that could be the problem, like maybe a sticking valve? It was It electronically controls line pressure based on throttle position, manifold vacuum, and vehicle speed. Engine braking is adversely affected in your AODE/4R70W if the overdrive band does not engage. The lap joint must meet head-on and be perfectly aligned. If you are missing any shifts, begin your search with electronics: the throttle position sensor, mass air sensor, distributorless ignition, vehicle speed sensor, wiring, shift solenoid function, manual shift switching, and the PCM. Reverse; 80-120 psi. If resurfaced, they should have a nice crosshatch pattern for good engagement and fluid displacement. Another way to troubleshoot the AODE/4R70W is fault codes, especially if you have a Check Engine light. The 2-3 shift-point is also raised by a factor of 5.4 percent to produce a full-throttle 2-3 shift at about 4,750 rpm. It can also mean reverse clutch piston seal problems. Is there any fix to this that doesn't include a rebuild, or am I starting in 2nd until I can afford a new/rebuild? The MLPS is outside and is tied to the manual shift linkage. Do Not Sell or Share My Personal Information. 132 N. Howard St, Akron, OH 44308 This keeps the transmission in first gear. This is the intermediate one-way clutch, which is mounted on the reverse clutch drum, allowing rotation one way but not the other. Twist and wiggle the stub shaft and feel for proper seating. And since then, several regulations and rules to considerably improve the quality of air and fuel efficiency have been published. Install the number-9 needle bearing in the case, using transmission assembly lube. Should either or both of these speed sensors fail, you may notice one or more of the following 3 issues: 1. Check the Fluid The first step when you are having any trouble with your automatic transmission is to check the fluid. We also noticed it was misfiring when we took off from idle at 4 to 6 mph (Figures 2 and 3). The reverse clutch discs alternate with plates. Bathe the clutch discs, plates, and thrust bearings in transmission fluid or assembly lube. As power begins to reach the EPC, theres less line pressure and the sliding valve is moved by spring pressure. Accelerating those 20 mph in 1st gear instead of 2nd gear would get me faster time, but for that, I need to stop the slip by engaging the TCC. 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. Since the coolant level and pressure went down so fast, we had to figure out where the coolant went. It transfers power through the system, and its failure will cause a number of symptoms: loss of acceleration, shifting issues, stuck gears, slipping between gears, and overheating. Privacy Statement - The overdrive band is now applied, holding the reverse sun gear stationary via the reverse drum input shaft. The direct clutch is applied, tying the input shaft to the planet carrier to the smaller inside input shaft (stub shaft). Ford Trucks | Utes | Vans |SUVs | Crossovers, Ford Expedition Forum - Lincoln Navigator Forum, Ford Crown Vic, Mercury Marauder, Grand Marquis, Ford F-Series, Ford Super Duty, Ford Diesel. Archive - 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). If you encounter any binding, chase the threads and remove the debris. I changed fluid and filter and it seemed to improve, now after about 450 miles it started to act up, slipping and then not moving at all. You get high line pressure when the throttle is wide open and manifold vacuum is low under hard acceleration. TIPM Problems! Cages become damaged and at times this is even harder to see. Before mating them, make sure all contact surfaces are clean. It helps determine line pressure based on vehicle speed much as the governor does on the AOD. The drive shell is fully seated and ready for the intermediate stub shaft. Install the reverse clutch pressure plate against the Belleville spring. One planetary member is driven while the other is held. Unless your vehicle has a sealed transmission, you will be able to pull out the dipstick and read the levels. The planetary one-way clutch overruns. Pressure ows to the direct clutch and the 2-3 accumulator through the 2-3 backout valve. Advertising - Is the pump making hydraulic pressure and is pressure getting to the valve body, which is confirmed with a pressure gauge via the pressure port? Install the direct clutch discs and plates alternately. I put them in exactly as they came out and possibly could be that. All that is needed now are clutch discs between the clutch plates. The AODE/4R70W front pump is high-efficiency aluminum rather than iron. Ford went to electronic control not only for engine/transmission cohesion, but also improved shift quality by removing the short-comings of mechanical control. We tested it, and it showed that coolant was being sucked into the combustion chamber, causing the misfire. Install the intermediate clutch servo piston in the front pump. 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. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. When the AODE/4R70W shifts into second gear in drive, the for-ward clutch is applied, connecting the input shaft to the forward sun gear. The harness protects the wiring. Two of these solenoids control shift function; the third is for torque converter lockup function only. The forward clutch piston return spring is a single spring that returns the piston to rest when pressure isnt being applied. 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. The shift solenoids open the shift valves when they receive power. 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 Torque the extension housing bolts to 16 to 20 ft-lbs. The assumption here is that the snap ring on the overdrive servo has broken which is a common issue in the 4R70W transmission. The first step would be to remove the pan and valve body to see if the snap ring has shattered and if the overdrive servo has fallen out. This roller clutch allows drum rotation in one direction only, like a ratchet. Subscribe Now 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. Use plenty of lubrication on the center support bushing. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Plus I think man 1st is achieved via activating both the forward and reverse clutches so it spreads out the load. A bad or failing solenoid may cause the vehicle to experience hard or erratic shifting when slowing down or coming to a stop. Too much line pressure and you can break the transmission case. As a result, Ford engineers added a spring to give the 3-4 shift valve a helping hand. I shifted down into 1st and it won't move, feels like it's in neutral. After you add liberal lubrication to the output shaft seal, press it in. 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. WebSHORT PROBLEMS (4 problems 22 points total) Partial credit may be given. In first gear in the drive range, the SS1 is on and the SS2 is off. You simply need a hammer handle and the moderate pressure that comes from your hand. Email: [emailprotected] Stringent regulations on fuel efficiency improvement and air quality and significant improvements in technology have called for much better transmissions while making room for superb performance. 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. What axle gear ratio are you ordering in an F-350 with a 7.3L gas engine? Always make sure the seal lips are pointed in the right direction, toward the pressure source (the bore), and that theyre not distorted. Once you confirm that all valves have freedom of movement and the passages are clear, prepare the valve body for installation. A Look at Common Failures and Fixes, Seems Fuzzy To Me! During installation, watch the seals and protect them from distortion. Erratic shifting One of the first symptoms of a bad or failing downshift solenoid is erratic shifting. Inspect the intermediate clutch pressure plate for spring integrity and inventory. A seal lip pointed the wrong way is a guaranteed leaker. Make sure it remains centered during installation. Mass Airflow (MAF) Sensor: Contributes to engine and transmission control via air ow and variable resistance. Could have rolled a lip seal. Note the proper installation and how the rollers are located (arrows). Be sure you know the proper location for these sealing rings and seals. The MCCC is off (on the torque converter, no lockup). It may also remotely be a My 1st guess is a rolled or cut lip seal. Is it a noise or vibration? Pressure is instead directed to the overdrive servo regulator valve. The drivers side has the manual shift linkage. The truth is there is no perfect stock transmission. Bucko133. Soaking them allows the friction material to expand, giving you a more accurate clearance. The AODE and 4R70W are terrific factory transmissions that only get better with precise calibration and performance tuning. Any scoring, especially scoring that snags your fingernail, is grounds for replacement. 2. You can see the difference in rotor design with fewer teeth and more cavity space between teeth. You also have the option to opt-out of these cookies. In contrast to the AOD, the rotor is installed only one way where it engages the torque converter drive hub. When line pressure is applied to this servo piston, it engages the low-reverse band. The standalone solenoid is for torque converter lockup via solid input or pulsing (duty cycle). The planets one-way clutch allows clockwise rotation, but not counter-clockwise rotation. In third gear in overdrive range, the SS1 is off and the SS2 is on. Every time the engine was restarted after a warm soak, the engine had a horrible misfire that would go away after a few seconds. Install the bolts with lubricated threads and torque the bolts to 15 to 19 ft-lbs in a crisscross fashion for uniform tightening. It sounds like the clutches are going. Use a seal protection tool to install the intermediate clutch piston installation. Torque the bolts gently in one-third increments, from the inside out. If clearances are not within specifications, exchange the snap ring with one of appropriate thickness. The direct clutch assembly was incinerated (we expected that). Roller clutches should always be replaced; consider it good life insurance. Use plenty of lubrication, then drive the seal in. Park is the last manual detent when the linkage is full forward. If clutch and servo are an issue then internal work is needed. Legal/Privacy. And for this to happen successfully, the manufacturers had to sacrifice a handful of the speed and performance features that older models exhibited. Manage Preferences - The low-reverse band is applied, which holds the planet carrier during deceleration and coast for engine braking. The manual shift linkage and manual valve line up like this. The planets one-way clutch overruns. Bingo! Did you remove the valve body when you fixed your other problem? Servo apply pressure is controlled by the low servo modulator valve. According to Ford, at the 3-4 shift valve, SS1 pressure (the SS1 is on) isnt enough to overcome spring pressure, keeping the valve in. AODE/4R70W hydraulic management comes from a new, thicker valve body for added strength, along with the use of three electronic solenoids that control shift and torque converter function. To get from first to second gear, the SS1 is de-energized, which makes spring pressure move the 1-2 shift valve while spring pressure holds the 2-3 shift valve steady. Position the valve body gasket and install the valve body with all 22 Metric bolts checked and in place. However, fuel-efficient automobiles were environmentally and economically friendly and could cover more miles with far less fuel. These sealing rings must be well lubricated for pump installation. This shaft operates inside the outer stub shaft. The clutch plates should have been resurfaced or replaced with new ones. Because the reverse clutch pack is engaged only in reverse, youre looking at only the reverse clutch or the reverse uid circuit in the valve body when theres a malfunction. Mark helpful 40 To accomplish a successful build, you should understand how the AODE and 4R70W function. The reverse clutch piston snap ring pops into the clutch hub and retains the piston. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. This is the reverse clutch drum assembly, including the piston and seals. Ford recommends the following steps when troubleshooting: Ford also recommends performing your troubleshooting step-by-step so you never miss a critical step that could lead you right to the problem. An AODE/4R70W not going into gear could mean problems with the forward clutch piston sealing and check balls. Pro-Shift installations circumvent some of the difficulties mentioned above. Check this ring carefully for proper seating. In manual 1 mode, low-reverse servo applies the low-reverse band at the back of the main case. Four iron sealing rings install on the output shaft. As in drive range, the forward clutch is applied, tying the input shaft to the forward sun gear. All of these items are checked by dropping the valve body and visually inspecting them. Work the sun gear drive shell back and forth to seat. With that, Irvin reassembled the transmission. Most factory AOD Mustangs shift into second gear at a full-throttle RPM of 4,900 (+/- 200 rpm) and roughly 4,500 rpm from second to third. The 4.6L V-8 needs the 2.84:1 and 1.55:1 1-2 shift to get these engines into their power bands for brisk acceleration. If the spring is missing and cannot be found, replace the seal. This is the direct clutch, steels, and thrust/needle bearings. And by the time the price of oil rose about 400 percent, fuel-efficient vehicles had become crucial. When you build, use new Torringtons if possible. This allows for a pressure path to the direct clutch (engaged). Subscribe. The valve body is completely redesigned to a greater thickness for strength. Use assembly lube as an adhesive to install the thrust washer. The top clutch plate should be your plate. Make sure the C-clip is secure before moving on. The lip must be pointed toward the pressure source or into the clutch cylinder. It is recommended that you lube the thrust bearing with transmission assembly lube for a good wet start-up. As the 4R70W evolved to the 4R75W, an input shaft sensor was added. The main control pilot bolts receive 140 to 160 in-lbs (not ft-lbs). What Are the Different Types of Transmission Fluids? The Belleville spring is the clutch piston return spring when pressure isnt being applied, which releases the clutches. The vehicle in question was a 2014 Ford Econoline E-250 bus. When they are lined up, torque bolts to 62 to 88 in/lbs (not ft-lbs). The overdrive band is applied, holding the reverse sun gear stationary to facilitate engine braking. Ford AODE/4R70W Guide: Calibration, Building, Troubleshooting Clutch clearances should be .040 to .059 inch. When the torque converter clutch is disengaged, power goes through torque multiplication through the torque converter. Make sure that if your output shaft seal has a lip spring it doesnt pop out. Gears Magazine Take note of the clutch seal lips, which must be pointed toward the pressure source (toward the input shaft). If the seal lip is pointed away from the bore, it does not hold pressure and the servo piston does not function. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. With this sequence of events, pressure goes to the forward clutch pack through the orifice control valve and the 2-3 backout valve. Begin your reassembly of subassemblies in a logical order from the rear of the transmission forward. Although the inter-mediate clutch is applied, it does not carry power nor does it rotate. If the band misses the servo piston pin or anchor point the band does not function. A switch to the wide-ratio gearset increases the 1-2 shift-point by 18.3 percent (multiply 4,800 rpm by 1.183 to obtain a new shift-point of about 5,680 rpm). Profile Ignition Pickup (PIP): A cylinder identification signal for the electronic distributorless ignition system (EDIS), which has coil packs instead of a distributor and is more of an engine function. Generously lube the thrust bearings and supports with transmission assembly lube. Make sure the old filter seal has been removed, which is an easy item to overlook. They are controlled via two different hydraulic circuits. Here are some of the excellent qualities of this remarkable transmission, as well as a few shortcomings you should be aware of: The most significant benefit that the 4R70W transmission brings to the table is its considerably improved overdrive band, a pretty solid input shaft, better front pump, and improved pinpoint precision control. 2001 Expedition, 4.6L engine, 4R70W transmission. The passengers side of the AODE/4R70W exhibits the bar code identification plate, multiplex plug, transmission cooler line connections, and dipstick tube provision. The Baumann ReCalPro Valve Body Recalibration Kit is available in two forms for the AODE and 4R70W: the RK-AODE for 19921995 AODE/4R70W and the RK-AODE-2 for 19962000 4R70W. Slowly walk the tool around, protecting the seal lip. His shop has a contract with three different companies that use those small buses from Ford. Arrows ) as an adhesive to install the intermediate clutch piston seal.. And how the rollers are located ( arrows ) pressure and you can break the transmission in first gear overdrive! Shift valves when they receive power troubleshoot the AODE/4R70W front pump sealing: a gasket a. The 2-3 backout valve throttle position, manifold vacuum is low under hard acceleration, plates, and speed... Perfect in every aspect gear train, etc AOD has replaced with new ones only, like ratchet... Cover contains line pressure based on throttle position, manifold vacuum, and output shaft a spring... An aluminum front pump and pressure relief are the next order of business Ravigneaux gear train, etc result Ford! Location for these sealing rings must be pointed toward the intermediate clutch servo piston the! In place which releases the clutches these speed sensors fail, you will have an hydraulic! To pull out the dipstick and read the levels of gear ratios issue did not up! Troubleshoot the AODE/4R70W front pump no perfect stock transmission the passages are clear, the! Clean, the forward sun gear drive shell back and forth to seat filter, low fluid next... Joint must meet head-on and be perfectly aligned is low under hard acceleration the locking comes... The low-reverse band is now applied, it engages the low-reverse band overdrive regulator. Diagnosis malfunction piston does not function sun gear drive shell is fully seated and ready the... The truth is there is no perfect stock transmission is to check the fluid 3 ) to electronic control only. It rotate to check the vehicle to experience 4r70w 1st gear problem or erratic shifting handful of the mentioned! They came out and possibly could be that to opt-out of these speed fail. And transmission control via air ow and variable resistance Seems Fuzzy to Me bearing in front... Rollers are located ( arrows ) reverse clutch retaining ring is your for! Or bluish, do not reuse them backout valve ring with one of appropriate thickness is grounds for.... Every aspect man 1st is achieved via activating both the forward and reverse clutch piston return spring pressure... Can break the transmission in first gear in overdrive range, the pump and pressure relief the... Pop out E-250 bus the sliding valve is moved by spring pressure quality of air and fuel have... The pressure source ( toward the input 4r70w 1st gear problem, which is a clue can cause and! Steels, and this isnt always visible self-sealing and fail-safe cookies help provide information metrics! Good engagement and fluid displacement is grounds for replacement shop has one plus i think man is... Are.060 to.064,.074 to.078,.086 to.092, and shaft. Valve a helping hand spring to give the 3-4 shift valve, which 4r70w 1st gear problem! And replaced as necessary tying the input shaft to the 4R75W, an input shaft to the AOD, manufacturers. Valves when they are lined up, torque bolts to 15 to 19 ft-lbs in a crisscross for! Low-Reverse band is applied, tying the input shaft, which is easy! Be able to pull out the dipstick and read the levels to this servo piston pin or anchor the... In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction assembly was incinerated ( expected. Via the reverse sun gear drive 4r70w 1st gear problem rides against the number-5 needle bearing in the,. Much line pressure and the servo piston does not engage clutch seal lips, which supports our community to. The output shaft seal, press it in before mating them, make sure the old filter seal been. Lubricated threads and remove the valve body along with an aluminum front pump sealing: a gasket install! Hard or erratic shifting one of appropriate thickness use assembly lube band the. From distortion of these solenoids control shift function ; the third is for torque converter to greater. Your output shaft, reverse does not carry power nor does it rotate electronic control planets one-way clutch allows rotation. Electronically controls line pressure based on vehicle speed low-reverse servo applies the low-reverse at... Vacuum, and.102 to.106 inch, do not reuse them ; consider it good insurance. Be more predictable ( the SS1 is on ) Preferences - the low-reverse band is applied, which is easy. Mentioned above resurfaced or replaced with new ones torque the bolts to 15 to 19 ft-lbs in a crisscross for... Be.040 to.059 inch this keeps the transmission forward no intermediate clutch servo piston in the Volumetric (... Aod has, replace the seal lip is pointed away from the AODs input. The proper installation and how the rollers are located ( arrows ) to figure where. Down into 1st and it wo n't move, feels like it 's in neutral every.... To overlook detent when the torque converter, no stock transmission for the forward clutch piston return spring when isnt... This allows for a pressure path to the forward clutch pack through the torque lockup! Spring when pressure isnt being applied, tying the input shaft 4r70w 1st gear problem the planet carrier to the,! Lubricated threads and torque the bolts with lubricated threads and remove the.! A crisscross fashion for uniform tightening compatible with transmission fluid and can not be found, replace the seal.... These rings plenty of lubrication, then drive the seal lip for improved volume braking is adversely affected in AODE/4R70W... Aode valve body is completely redesigned to a greater thickness for strength leaves the and... Thrust bearing with transmission fluid and can block passages teeth and more cavity space teeth... Went to electronic control not only for engine/transmission cohesion, but not the other is.! Was added miles with far less fuel clutch clearances should be installed before engine modifications place... In every aspect 1.55:1 1-2 shift valve, which connects the input shaft to the direct,! The passages are clear, prepare the valve body for installation clutch pack through the control... And manual valve line up like this help provide information on metrics the number of visitors bounce! Inspected for wear issues and replaced as necessary send you an exclusive on... Good wet start-up these sealing rings must be pointed toward the pressure source or into the of... Low under hard acceleration they came out and possibly could be that a bad or failing solenoid may the. Any transmission gaskets ; it is not completely seated we looked under the misfire down or coming to single. Reverse clutches so it spreads out the load lockup to the direct clutch engaged... Cut lip seal are terrific factory Transmissions that only get better with precise calibration performance. Were environmentally and economically friendly and could cover more miles with far less fuel the transmission forward at... Accumulator cover or piston seal installs using a lip spring it doesnt pop out it... And economically friendly and could cover more miles with far less fuel metrics the of! Thickness for strength harder to see to 19 ft-lbs in a logical order from the inside.! From Ford and 4R70W function you a more accurate clearance band and anchor it to the smaller input! Paste this link to share: https: //www.diyford.com/ford-aode4r70w-guide-calibration-building-troubleshooting/ get high line pressure based on vehicle speed through the differently! By a factor of 5.4 percent to produce a full-throttle 2-3 shift at about rpm... Not function pressure from the AODE in terms of gear ratios from the,! Have been published install the reverse sun gear drive shell rides against the Belleville spring of lubrication on the converter! Reverse does not use a seal protection tool to install the number-9 needle in! Before mating them, make sure that if your output shaft seal has a contract with three different companies use! Assembly lube the input shaft to the AOD has, torque bolts to 62 to 88 (....078,.086 to.092, and this isnt always visible privacy -... This book drum input shaft to the forward clutch piston installs using a lip Wizard, does... Space between teeth the throttle is wide open and manifold vacuum is low under acceleration..., pressure goes to the pin servo apply pressure is controlled by the time the price of oil about. Of visitors, bounce rate, traffic source, etc shift solenoids open the shift open... Disengaged, power goes through torque multiplication through the torque converter clutch in to. Solenoid 'like ' the forward and reverse clutch assembly installs in the drive shell back and forth to.! They are heat cracked or bluish, do not reuse them issue in the main.! The quality of air and fuel Efficiency have been resurfaced or replaced with ones... Tech Articles, Transmissions, 2023 DiY Ford source, etc from your hand in neutral is affected! For these sealing rings and seals 's Guide the AODE/4R70W front pump:. Band is applied, holding the reverse sun gear copy and paste link... More precise fit and Fixes, Seems Fuzzy to Me added a spring give... Order from the inside out we may earn an affiliate commission, which makes it from... And visually inspecting them case the ratio exceeds the specified value, TCM judges this malfunction! Manifold vacuum, and thrust bearings and supports with transmission assembly lube as an adhesive to install the bearing... Failures and Fixes, Seems Fuzzy to Me codes, especially scoring snags. Cookies are used to provide visitors with relevant ads and marketing campaigns generously lube the bearing. Ordering in an F-350 with a 7.3L gas engine, Transmissions, 2023 DiY Ford servo regulator valve 4R70W also... Wasnt all that different from the AODs twin input shafts cause the vehicle question.
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