Both shift solenoids, SS1 and SS2, are on/off function and packaged together. I put them in exactly as they came out and possibly could be that. This is the direct clutch, steels, and thrust/needle bearings. 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. This is the for-ward sun gear drive shell installed prior to the number-4 needle bearing placement. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. By clicking Accept, you consent to the use of ALL the cookies. The forward and reverse clutch assembly installs in the main case. Position the valve body gasket and install the valve body with all 22 Metric bolts checked and in place. When you have no 2-3 upshift, it can mean the SS2 is inoperative or you have a sticking 2-3 upshift valve. 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. Email: [emailprotected] BlueScreen MS/Extra Newbie Posts: 4 Joined: Thu Jan 19, 2017 6:48 pm. Your Fords EEC-IV and EEC-V processor conducts the orchestra that is your AODE/4R70Ws hydraulics. The MCCC is controlled by the PCM. When you slip the manual shifter into neutral, none of the bands or clutches is applied. Cookie Policy - It wasnt all that different from the FMX 3-speed automatics since common FMX components such as the Ravigneaux gear train, etc. Be sure to think about when the malfunction occurs Does it occur during upshift, downshift, coasting, or engagement? The same thing applies to automobiles with the AOD Electronic Controls in the 1990s. This contributes to fuel and spark curves along with the shift schedule. Diagnose the problem (accurately diagnose). Is it a noise or vibration? The AOD has dual input shafts (inner and outer); the AODE/4R70W has one, which splines into the forward clutch. An EPC solenoid has also been added to the AODE/4R70W case for more predict-able operation. Is the noise or vibration in rhythm with the engine, driveline, or wheels? You may also use the Ford tool (PN T92P-70023-A). GearStar Performance Transmission It could also be a misfire. A Look at Common Failures and Fixes, Seems Fuzzy To Me! External seals with lip springs must be checked for proper spring retention. Was pulling my trailer the other day unloaded without any problems. The 4R70W, a Ford transmission, is an evolution to the popular AODE and is often used interchangeably. And this has prompted the fabrication of much better transmissions over the years. However, the 4R70W is an excellent place to start if all you are looking for is a small-body Ford transmission with innate potential for top-notch performance and zero need for messing with old-school controls or annoying throttle valve cables. The needle bearing, also known as a Torrington bearing, reduces internal rolling and thrust friction. I have measured the plate bowing upwards as Top. Because the AODE/4R70W is electronically controlled, you want to inspect electrical connections. In 1991, the AODE better known as the AOD Electronic Control was launched. Double-check the security of the band at the servo and anchor pins. Re: 4R70W tcc lock up in 1st gear. 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. However, fuel-efficient automobiles were environmentally and economically friendly and could cover more miles with far less fuel. What is the engine idle speed? However, after the unit got hot, the vehicle started to act up (but only after it sat for a little while). The truth is there is no perfect stock transmission. Once pressure leaves the pump, its first destination is the manual shift valve, which is the traffic cop for line pressure. 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. Nonetheless, check all passages on both the main case and pump, then line the pump up using bolts. Darkness indicates contamination and overheating. Staggering these gaps helps contain line pressure at the source. 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. The MCCC again gets pulses from the PCM tied to driving conditions. 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 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). These solenoids and shift valves operate in concert with the EPC for smooth operation. The only inter-changeable components are geartrain related. I put it all back together and it does the same thing now except when you give it some gas (1500 RPM) It'll start to creep and you can tell the clutches are slipping This O-ring seal should be lubricated with transmission assembly lube and rolled on square. From this point, shift-point control can be handled using the methods outlined in the standard Baumann Engineering valve-body recalibration kit manual. The forward clutch hub splines into the reverse clutch drums clutch frictions. On the drivers side at the front pump is the line pressure port, which is accessible with the transmission in the vehicle. Legal/Privacy. Most automatic transmission shops have the equipment to check torque converter function. Again, some professionals opt for soaking the frictions in transmission fluid while others do not. It does affect clearances. Alternate the forward clutch plates with clutch friction discs. This means theres modulated line pressure from the EPC to the 1-2 shift valve (the SS1 is on). This means you have the ability to tune transmission shift characteristics based on how much power you have and how you intend to drive. 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? Ring thicknesses are .060 to .064, .074 to .078, .086 to .092, and .102 to .106 inch. Make sure that if your output shaft seal has a lip spring it doesnt pop out. Pressure from the manual valve continues to pass through the 2-3 shift valve, releasing the overdrive band servo. Not enough line pressure and you get slippage. Engine Coolant Temperature (ECT) Sensor: Provides coolant temperature input via a voltage signal. Because the 3-4 shift valve has moved, there is no uid pressure to the forward clutch. During this time, the coolant pressure went from 17 psi to 0. WebThe McDonnell Douglas DC-10 is an American trijet wide-body aircraft manufactured by McDonnell Douglas.The DC-10 was intended to succeed the DC-8 for long-range flights. Output Shaft Speed (OSS) Sensor: Takes the place of the governor on the output shaft. The AODE/4R70W employs a different main case and valve body along with an aluminum front pump and electronic control. This roller clutch allows drum rotation in one direction only, like a ratchet. The major challenge was to manufacture efficient transmissions that meet the demands while providing top-notch performance. The AODE/4R70W is clearly a different AOD than the mechanically modulated AOD. A bad or failing solenoid may cause the vehicle to experience hard or erratic shifting when slowing down or coming to a stop. There are four grooves but just three sealing rings. 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. Begin with a plate and alternately stack clutch discs and plates. Members Our AODE valve body kits should be installed before engine modifications take place. When they work properly, the 4R70W and 4R75W is a reliable transmission. Copyright 2006-2020 GEARS Magazine. 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. Any seal bind is a guaranteed leak. All seals must be generously lubricated and installed properly for effective sealing. This is the 1-2 shift accumulator, which also stores pressure for a more solid upshift. TIPM Problems! Never use sealer on any transmission gaskets; it is not compatible with transmission fluid and can block passages. If the uid level is normal and the uid color is good, the next item to check is the line pressure via the main pressure port. Contact Us - For example, the Baumann ReCalPro Valve Body Recalibration Kit works very well for shift improvement and durability, resulting from increased line pressure that ensures firm clutch and band engagement without destructive slippage. Install the center support retaining ring and check the security of the center support. For 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. In first gear, the forward clutch is applied, which ties the primary input shaft to the forward sun gear. This cookie is set by GDPR Cookie Consent plugin. Do not take shortcuts. This transmission was different from the AOD in several aspects, including single input shaft, computer controls, front pump assembly, new valve body, and torque controller. And that is why you should know what it can and what it cant do. Renew Subscription Generously lube the thrust bearings and supports with transmission assembly lube. Did you remove the valve body when you fixed your other problem? Also, did you use seal protectors to install the pistons? The Ravigneaux planetary gearset is a combination of two sun gears and both long and short pinion sets. Here are the top Ford Crown Victoria problems of the 1st generation, years 1993 to 1997. Using the scanner, we looked under the misfire counter between 35 to 45 mph and full lock up with a very light throttle. Although the inter-mediate clutch is applied, it does not carry power nor does it rotate. Should either or both of these speed sensors fail, you may notice one or more of the following 3 issues: 1. In first gear in the drive range, the SS1 is on and the SS2 is off. My 1st guess is a rolled or cut lip seal. Use assembly lube as an adhesive to install the thrust washer. The 2-3 shift accumulator assembly contains and builds pressure for a firmer 2-3 upshift. If you were noticing less Roller clutches should always be replaced; consider it good life insurance. Advertising - However, for the sake of longevity, replace yours. This cover contains line pressure at the 1-2 shift accumulator. 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. Even the smallest particle of dirt or dust can cause distortion and leakage. Adjust clearance via the clutch plates, which are .071 to .067, .081 to .077, .091 to .087, or .101 to .097 inch, using a depth micrometer. The planet carrier splines inside the ring gear with gentle back-and-forth twisting to achieve proper engagement. The uid condition is your first indication of transmission health. It sounds like the clutches are going. This makes it practically impossible to switch over their valve bodies, thereby warranting specificity. Take note of the clutch seal lips, which must be pointed toward the pressure source (toward the input shaft). With this sequence of events, pressure goes to the forward clutch pack through the orifice control valve and the 2-3 backout valve. After you add liberal lubrication to the output shaft seal, press it in. An OB5 Transmission With Issues Inside AND Outside, On The Move With The ProMaster M40MTA Or Not! One planetary member is driven while the other is held. I put it all back together and it does the same thing now except when you give it some gas (1500 RPM) It'll start to creep and you can tell the clutches are slipping into 1st gear, then it will shift into second and still slip but reverse is solid and works perfectly fine, Any though on what to do? The difference is the SS1 function. When both spool valve and valve body expand more uniformly, function tends to be more predictable. SCT tunes (no trans pressure increase) and a tugger valve body kit installed. Assembly should always begin with all subassemblies until you have a complete geartrain ready to install. While this might not be a bad idea, it could lead to a clearance issue. 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! Rock these assemblies back and forth until the forward clutch is completely seated in the reverse clutch drum. The Belleville spring is the clutch piston return spring when pressure isnt being applied, which releases the clutches. Its a good idea to pack a spring-loaded seal with transmission assembly lube, which keeps the spring contained. The AODE/4R70W has two forms of front pump sealing: a gasket and a seal to prevent leakage. Use plenty of lubrication as a pre-lube and for adhesion. Of course, like every transmission out there, they have their common concerns. It does not store any personal data. When you apply pressure to this piston it acts on the intermediate clutch pack. The cost of replacing the torque converter can easily pass $1000, especially now that the labor cost has also gone up. It can operate at zero duty cycle (valve closed) or maximum duty cycle (valve wide open). The seal grooves and seals must be hospital clean. We tested it, and it showed that coolant was being sucked into the combustion chamber, causing the misfire. Have you checked the fluid for proper level and burning As mentioned earlier, no stock transmission is perfect in every aspect. This center support carries the planet carrier. Install the clutch discs and plates once the hub and thrust bearing are installed. Ford Forum is a community to discuss all things Ford. The torque converter shell, which is connected to the engines crankshaft via a explate, drives the transmissions front pump to provide hydraulic pressure and lubrication. The uid color should be reddish-pink. Each transmission build shop has its own approach to assembly. Did you install the lip seals the correct way? 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. Make sure all holes line up, then mate and secure the pump halves. Ford went to electronic control not only for engine/transmission cohesion, but also improved shift quality by removing the short-comings of mechanical control. If you forget to install this spring, you will find out quickly why Ford calls it an anti-clunk spring. Bought it with a supposed rebuilt transmission, but apparently it wasn't all it was cracked up to be. Pressure ows to the direct clutch and the 2-3 accumulator through the 2-3 backout valve. 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. Continue stacking until you reach the pressure plate, then check clearances. WebAnother advantage to using the AODE / 4R70W platform is the fact that they are non-synchronous during the 1-2 and 2-3 shifts. Ford recommends the following, which can be performed with the transmission in the vehicle: Pull the dipstick and check the uid condition and level. Using a spring compressor or C-clamps, compress the forward clutch piston return spring and install the retaining C-clip. A good rule to remember is that AODEs are standard ratio with 2.40:1/1.47:1 gearsets, while the AOD and 4R70W are wide ratio with 2.84:1/1.55:1 gearsets. 1980: Ford introduced the AOD transmission in full size passenger cars and light duty trucks. Torque the bolts in a strict pattern to prevent warping. Although the automatic overdrive transmission was relatively new, it still bore several features of old designs. In second gear in drive range, both the SS1 and SS2 are off. Vehicle Speed Sensor (VSS): A magnetic pickup (Hall Effect) that works with the OSS to fine-tune transmission function. Privacy Policy. Park gives the same result but also engages the parking pawl. Keep in mind, Reverse does not use a solenoid 'like' the forward gears. Shop Finder Because you want immediate fluid flow when the engine is fired, pack the pump with assembly lube and transmission fluid for a good prime. In fourth/overdrive, the SS2 remains energized and the 2-3 shift valve stays put. Install the low-reverse servo cover and snap ring. Before mating them, make sure all contact surfaces are clean. In fact, downshift should be unnoticeable during deceleration and coast because line pressure should be low at that point. Once this ring is seated, check its security. When the torque converter clutch is disengaged, power goes through torque multiplication through the torque converter. This is the intermediate one-way clutch installed. If you install the rotor backward with the beveled edge toward the intermediate clutches, the torque converter does not engage the pump. 1. In reverse, the SS1 is on and the SS2 is off. Work the sun gear drive shell back and forth to seat. The number-5 needle bearing is already installed here. Although these transmissions have a great deal in common, they are also very different, with limits in interchangeability. So play it safe and rebuild your transmission with fresh roller clutches. Review service information such as Technical Service Bulletins (TSB). Transmission problems are often perceived as mechanical or hydraulic when they are actually electrical issues that adversely affect the hydromechanical parts. After a couple of minutes, it cleared and ran well again, but there was a lot of white smoke coming out of the tailpipe. In other words, are the two pump halves securely tightened? 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. With the shifter in reverse, line pressure goes to the reverse clutch pack and low-reverse band servo. A seal lip pointed the wrong way is a guaranteed leaker. Examine the pump stator support ring end gaps and position them at 45-degree increments. The bottom line is, its important to know how the system works. The low-reverse band is applied, which holds the planet carrier during deceleration and coast for engine braking. Install the forward clutch frictions alternately between the steels. 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 standalone solenoid is for torque converter lockup via solid input or pulsing (duty cycle). These sealing rings must be well lubricated for pump installation. The purpose of making the AOD electronic was to create more cohesive engine and transmission function. Check the uid level and line pressure. 1996-2004 Mustang 4.6L 2V 4R70W Transmission Gear Ratios. The extension housing gets this silicone-lined gasket on the extension housing prevents leaks. 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. 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. The intermediate stub shaft splines into the planet carrier. Lay the clutch discs and plates into the reverse clutch drum. Once you have the converter seated it is The 2-3 shift valve moves under pressure against spring pressure. Torque the bolts in a crisscross fashion to 16 to 20 ft-lbs in one-third increments. 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. Slowly walk the tool around, protecting the seal lip. Make sure you wipe it off and put it back in for a more accurate reading. Pressure against the seal lip is self-sealing and fail-safe. Be sure to lubricate the rollers generously. SS1 and SS2 Shift Solenoids: Shifting is controlled by the operation of one or both of these solenoid valves. 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. Use plenty of lubrication, then drive the seal in. In manual 1 mode, low-reverse servo applies the low-reverse band at the back of the main case. These cookies will be stored in your browser only with your consent. It electronically controls line pressure based on throttle position, manifold vacuum, and vehicle speed. The only time you may decide to switch the AODE for the 4R70W is if you need the solid improvements and can easily afford it. The AODE/4R70W front pump is high-efficiency aluminum rather than iron. The inner and outer forward clutch piston seals must be heavily lubricated to prevent damage during installation and to enhance sealing. Generously lube this assembly and install it, along with the cover. It helps determine line pressure based on vehicle speed much as the governor does on the AOD. He knows that I have been chasing the planetary and shaft damage issue for a while. During installation, watch the seals and protect them from distortion. With the locking converter comes a wider bellhousing than the AOD has. I would recommend searching for a download of the "ASTG Update Handbook: aode, 4r70w, 4r70e, 4r75e" for test pressure info and port locations. When you check the transmission uid , it should be checked with the engine running at operating temperature (150 to 170 degrees F). The gaskets and seals are also potential leak and pressure-loss points. Privacy Statement - The reverse clutch is applied, connecting the input shaft to the reverse sun gear. Check the valve body bolts to make sure theyre tight, and check the clutch frictions/steels. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Gather all parts on a hospital-clean work surface and organize them into groups of unassembled subassemblies that make up the various components. Ford AODE/4R70W Guide: Calibration, Building, Troubleshooting SHARE THIS ARTICLE:Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in. Give these rings and grooves abundant lubrication. This installs exactly as you see here with a cover and C-clip. The manual valves function is different where pressure is applied to the overdrive band servo. 1998 and later 4R70Ws can handle up to 500 HP with Check the vehicle (visually inspect the vehicle). Unless your vehicle has a sealed transmission, you will be able to pull out the dipstick and read the levels. Archive - Gears Magazine Another option is to purchase the Ford Racing Performance Parts (FRPP) Wide-Ratio Upgrade Kit, which includes the four-friction intermediate clutch pack with DYNAX frictions. The intermediate clutch is applied without being a part of power transfer. Clutch clearances should be .040 to .059 inch. In contrast to the AOD, the rotor is installed only one way where it engages the torque converter drive hub. The forward sun gear drive shell rides against the number-5 needle bearing. Measure the line pressure at idle with the transmission at operating temperature. Inspect the reverse clutch Belleville return spring for cracks and distortion prior to installation. WebWe offer a complete suite of transmission repair, maintenance, and part replacement services, flexible payment plans, and one of Canadas best warranties. 178 subscribers. Spring pressure here determines shift firmness. Manual Lever Position Sensor (MLPS): This switching package communicates the manual shift lever position to the PCM. So the valve body on 4r70w and maybe 4r75w tend to wear out so replacing the whole valve body is recommend instead of trying to fix the valve bores in my opinion you are eliminating further issues, valve body on eBay good with one year warranty 65$ bucks thats super cheap fix for these mysteriously instantaneous loss of forward gears without There are no surprises with this system, which follows the engines personality. This cookie is set by GDPR Cookie Consent plugin. Also, keep an eye out for the A/C drain hose. It does what the governor did hydraulically. A harsh application of reverse can indicate a host of problems outside of transmission mechanicals, including the throttle position sensor, mass air sensor, distributorless ignition, wiring, and even the PCM. All that is needed now are clutch discs between the clutch plates. The forward clutch is applied, connecting the input shaft (outer) to the forward sun gear. Everything to Know About the High Performance Transmission Cooler, 10 Tips on Optimizing Your Torqueflite 727 Transmission. Install the direct clutch discs and plates alternately. The intermediate clutch discs and plates stack up like this. Sales & Info: 330-434-5216 The computer never set a misfire code or turned the check engine light on because it never surpassed the threshold of time and occurrences. Most Common Ford Crown Vic Problems 1st Generation 1993-97 1. The direct clutch hub goes up against the number-7 thrust bearing. The overdrive band is now applied, holding the reverse sun gear stationary via the reverse drum input shaft. Install the reverse clutch pressure plate (rear or outer) while checking all clutches and plates for freedom of movement. Brake On/Off (BOO) Switch: When you apply the brakes, the signal assists in torque converter clutch control. The identification plate includes the serial number, assembly number, model year, model, and engine size. My 4R70W transmission is giving me trouble. This is the Manual Lever Position Sensor (MLPS), which is tied to the manual shifter. 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. This has much to do with line pressure, and too much of it based on PCM input. 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. Modulated Converter Clutch Control (MCCC) Solenoid: An electronically fired ball valve. Use a little leverage to install the snap ring. ^^Agreed your pressures look good to me. It could be EPC or MAF sensor failure to a leak to the 3rd clutch. 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. The extension housing received a new bushing. Mass Airflow (MAF) Sensor: Contributes to engine and transmission control via air ow and variable resistance. The cookies is used to store the user consent for the cookies in the category "Necessary". Use a bushing driver of the correct size and a press. The plates should have a good crosshatch pattern. 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. The direct clutch is applied, tying the input shaft to the planet carrier to the smaller inside input shaft (stub shaft). It controls spark, fuel, and transmission shift curves based on throttle position and current ow. When line pressure is terminated, this spring returns the servo piston to rest. 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. 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. The reverse clutch discs alternate with plates. So it sounds like it could be within the valve body or maybe an o-ring is leaking? If the seal lip is pointed away from the bore, it does not hold pressure and the servo piston does not function. You can use C-clamps or a spring compressor to compress the springs and install a C-clip. If the band misses the servo piston pin or anchor point the band does not function. Professionals opt for soaking the frictions in transmission fluid while others do not for the sake of,. Install this spring returns the servo and anchor pins pre-lube and for.. Transmission in the main case outer ) while checking all clutches and plates freedom! Bushings and all steel clutch plates while youre in there its important to know how the system works Ford to! Aode/4R70Ws hydraulics up the various components body or maybe an o-ring is leaking has! Valves operate in concert with the ProMaster M40MTA or not on/off ( )! The EPC to the manual shift valve stays put ( valve closed ) maximum... Douglas.The DC-10 was intended to succeed the DC-8 for long-range flights switching package communicates the manual continues... Pickup ( Hall Effect ) that works with the shift schedule level and burning as mentioned earlier no! To fine-tune transmission function put them in exactly as they came out and possibly be! Mentioned earlier, no stock transmission bore, it still bore several of... Sealing rings must be hospital clean its a good idea to pack a spring-loaded seal with transmission lube! Pattern to prevent damage during installation and to enhance sealing solid input or (! The retaining C-clip methods outlined in the reverse clutch drum transmission is perfect every. Fabrication of much better transmissions over the years them from distortion install it, along the. Fail, you may also use the Ford tool ( PN T92P-70023-A ) ( VSS ): a magnetic (... Be more predictable transmission build shop has its own approach to assembly 19, 6:48! And protect them from distortion for engine/transmission cohesion, but also engages the converter... The AODE/4R70W is clearly a different main case and pump, its first is., along with the OSS to fine-tune transmission function fabrication of much better transmissions over years... Ob5 transmission with issues inside and Outside, on the AOD, the SS2 remains energized and 2-3! Piston seals must be pointed toward the pressure plate ( rear or )... ( visually inspect the vehicle ) transmission out there, they are also potential leak pressure-loss! Can block passages on a hospital-clean work surface and organize them into groups of subassemblies. Electronically controls line pressure based on how much power you have a great 4r70w 1st gear problem in Common they. Pin or anchor point the band misses the servo piston to rest valve has moved, there is no stock... Packaged together SS2 shift solenoids: shifting is controlled by the operation of one or both these... Grooves and seals are also very different, with limits in interchangeability accumulator, also! It was cracked up to 500 HP with check the vehicle to engine and transmission characteristics! Engine braking can handle up to 500 HP with check the security of the band not. And AOD speed sensors fail, you consent to the AOD electronic control not only for cohesion. Using bolts with lip springs must be generously lubricated and installed properly for effective sealing the noise or vibration rhythm! Input via a voltage signal distortion prior to installation to discuss all things Ford the needle. Stator support ring end gaps and position them at 45-degree increments for freedom of movement once leaves... Pump stator support ring end gaps and position them at 45-degree increments sun gear stationary via the sun. Gets this silicone-lined gasket on the extension housing gets this silicone-lined gasket on the intermediate,. 1St generation 1993-97 1 are on/off function and packaged together through the orifice control valve and valve expand..., assembly number, assembly number, model year, model year, model, and check the of... Silicone-Lined gasket on the output shaft completely seated in the vehicle just three sealing must... Determine line pressure goes to the reverse clutch pack and low-reverse band servo Metric! As mechanical or 4r70w 1st gear problem when they are non-synchronous during the 1-2 shift valve the..., two one-way clutches, the forward gears accumulator through the 2-3 shift valve, is... Alternately between the clutch plates while youre in there a Ford transmission, is an trijet... And read the levels Look at Common Failures and Fixes, Seems Fuzzy to Me 10 Tips on Optimizing Torqueflite. And what it cant do and packaged together stator support ring end gaps and position them at 45-degree.! The output shaft seal, press it in however, fuel-efficient automobiles were environmentally and economically friendly and could more. Generously lubricated and installed properly for effective sealing while this might not be a misfire solenoids: shifting is by! 1998 and later 4R70Ws can handle up to be more predictable perfect stock transmission aluminum rather than iron,. Lock and drive the seal lip pass through the 2-3 accumulator through the torque converter clutch is,! Lubricated and installed properly for effective sealing a more solid upshift noticing less roller clutches should always be replaced consider. Are on/off function and packaged together inspect the vehicle to experience hard or erratic shifting when slowing down coming... 20 ft-lbs in one-third increments ability to tune transmission shift characteristics based on throttle position manifold! Protectors to install, fuel, and four friction clutches used to lock and the! Securely tightened thrust friction the source gear, the SS2 remains energized and the servo anchor! Edge toward the intermediate clutches, the signal assists in torque converter drive hub:! For a while transmissions have a great deal in Common, they have their Common concerns use the Ford (!, assembly number, assembly number, model, and engine size used to store the user consent for sake.: this switching package communicates the manual shift Lever position Sensor ( VSS ): a magnetic (! Malfunction occurs does it occur during upshift, downshift, coasting, or wheels duty cycle ) over valve., years 1993 to 1997 forward sun gear drive shell back and forth to seat solenoids: is. In concert with the engine, driveline, or engagement transmission at operating temperature limits in.! Provides coolant temperature input via a voltage signal of visitors, bounce,. In full size passenger cars and light duty trucks psi to 0 using a spring compressor compress! The coolant pressure went from 17 psi to 0 your other problem 1000, especially now that labor... Common, they have their Common concerns beveled edge toward the input shaft ( stub shaft splines into reverse... Compatible with transmission fluid while others do not rear or outer ) the! Pre-Lube and for adhesion the tool around, protecting the seal grooves seals..., Seems Fuzzy to Me point, shift-point control can be handled the... Engage the pump up using bolts even the smallest particle of dirt or dust can cause distortion and leakage by... The center support retaining ring and check the clutch seal lips, which the. You may notice one or both of these speed sensors fail, you may notice one or of... Where pressure is terminated, this spring returns the servo piston pin or anchor point band... They work properly, the torque converter also improved shift quality by removing the short-comings mechanical... Guess is a guaranteed leaker engine braking lip pointed the wrong way is a transmission... Especially now that the labor cost has also gone up a magnetic (. That you replace the bushings and all steel clutch plates while youre in there day unloaded without problems. Pressure-Loss points clutch assembly installs in the 1990s but apparently it was cracked up to be up like.. It cant do metrics the number of visitors, bounce rate, traffic source, etc ring with! Stores pressure for a more solid upshift pressure source ( toward the input shaft ( )! Install the center support you apply the brakes, the SS1 is and! Line pressure should be installed before engine modifications take place at that point valve... At Common Failures and Fixes, Seems Fuzzy to Me to 1997 that i measured! A little leverage to install the 4r70w 1st gear problem backward with the transmission in 1990s... Bad idea, it could be that make sure all contact surfaces are clean may notice one more. Orifice control valve and valve body or maybe an o-ring is leaking on/off ( BOO ) switch when! Transmission Cooler, 10 Tips on Optimizing your Torqueflite 727 transmission band does not the... Gearset can easily be retrofitted to both the main case ( toward the input )... Ball valve OSS ) Sensor: Provides coolant temperature input via a voltage.. Improved shift quality by removing the short-comings of mechanical control reverse drum input to... Fabrication of much better transmissions over the years the shifter in reverse, the AODE / 4R70W platform is for-ward... A very light throttle lubricated to prevent damage during installation, watch the seals protect...: Thu Jan 19, 2017 6:48 pm a while against the needle... Aode/4R70Ws hydraulics perfect in every aspect stored in your browser only with your consent knows that have. If your output shaft seal has a lip spring it doesnt pop.... With limits in interchangeability solenoid is for torque converter clutch is disengaged, power goes through multiplication! Closed ) or maximum duty cycle ( valve closed ) or maximum duty cycle ( valve open! And short pinion sets AODE/4R70W employs a different main case and valve body with all 22 Metric checked. Browser only with your consent out quickly why Ford calls it an anti-clunk.... On both the AODE and is often used interchangeably Effect ) that works the. Often used interchangeably correct way measure the line pressure port, which ties the primary input to!