You may also use the Ford tool (PN T92P-70023-A). All that is needed now are clutch discs between the clutch plates. Power passes through the torque converter to a single input shaft, which makes it different from the AODs twin input shafts. All bearing surfaces should have been lubricated. Work the sun gear drive shell back and forth to seat. Too much line pressure and you can break the transmission case. Cant get reverse gear? Ford developed the AODE and 4R70W to achieve cohesive engine and transmission function in 1991. As far as the seal protectors, I didn't know there was such a thing honestly. This cookie is set by GDPR Cookie Consent plugin. Soak this bearing in transmission assembly lube and make sure it sticks to the case. Examine the pump stator support ring end gaps and position them at 45-degree increments. But if you need a unique transmission with innate potential for, 16-Speed: More Gears Than You Can Shake Three Sticks At, 2011 Chevy Silverado Project Blue Bomber Finale, A High-Performance Trans for Supercharged V-8s, A New Transmission for the ol Sedan Delivery. To accomplish a successful build, you should understand how the AODE and 4R70W function. Gather all parts on a hospital-clean work surface and organize them into groups of unassembled subassemblies that make up the various components. In third gear in overdrive range, the SS1 is off and the SS2 is on. The MCCC gets pulsing signals from the PCM. Could you pressure test to see if its not building pressure and could you explain how to do so? 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. The planetary one-way clutch overruns. Or it could be a number of sensors both internal and external. 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. Carefully install the direct clutch piston using a seal installation tool to protect the seal lip. 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This transmission has lower gear ratios in first and second gears, which brings about improved Chrysler and General Motors followed swiftly with their respective versions. Install the intermediate clutch servo piston in the front pump. And finally, torque converter clutch function can be full on, full off, or a smooth engagement, which is controlled by the MCCC. TRC installs frictions dry. 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. Spring pressure here determines shift firmness. Install a new overdrive band and anchor it to the pin. 1998 and later 4R70Ws can handle up to 500 HP with Never reuse old bearings or seals. Clutch clearances should be .040 to .059 inch. The forward sun gear drive shell rides against the number-5 needle bearing. There are four grooves but just three sealing rings. If there is too much clearance, you need a thicker retaining ring to take up excessive clutch clearance. SCT tunes (no trans pressure increase) and a tugger valve body kit installed. Installing them wet gives them a good start against freshly resurfaced clutch drums. Renew Subscription When you apply pressure to this piston it acts on the intermediate clutch pack. Do not get this backward. In 1996-98 Mustangs, the speedometer drive gear is part of the output shaft and is not replaceable. Check this pressure plate for freedom of movement before installing the pump. Re: 4R70W tcc lock up in 1st gear. This makes it practically impossible to switch over their valve bodies, thereby warranting specificity. Gears Magazine Take note of how the rollers fit into the cage. An EPC solenoid has also been added to the AODE/4R70W case for more predict-able operation. Make sure the old filter seal has been removed, which is an easy item to overlook. 1980: Ford introduced the AOD transmission in full size passenger cars and light duty trucks. This keeps the transmission in first gear. The transmission must be removed to check torque converter function. When removing the old direct clutch piston seals, observe the seal installation and lip direction. Engine Coolant Temperature (ECT) Sensor: Provides coolant temperature input via a voltage signal. In 1991, the AODE better known as the AOD Electronic Control was launched. were also part of its components. Twist and wiggle the stub shaft and feel for proper seating. This is the direct clutch, steels, and thrust/needle bearings. Pick-up not installed correctly,clogged filter,low fluid. Inspect the reverse clutch Belleville return spring for cracks and distortion prior to installation. 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. Next, we suspected the intake manifold. Other issues can be a faulty direct clutch or direct clutch piston/seals. 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 truth is there is no perfect stock transmission. All bushings and thrust bearings should be replaced in the interest of durability. The gear ratios of the 4R70W transmission are: First gear: 2.84 Second gear: 1.55 Third gear: 1:1 Fourth gear: 0.70 The respective gear ratios of the AOD are: 1st If clutch and servo are an issue then internal work is needed. Four iron sealing rings install on the output shaft. The MCCC is controlled by the PCM. The intermediate clutch is also applied at this time, but does not transfer power as a result of the freewheeling intermediate one-way clutch. Everything to Know About the High Performance Transmission Cooler, 10 Tips on Optimizing Your Torqueflite 727 Transmission. The reverse clutch retaining ring is your adjustment for clutch clearances. Closely inspect all hard parts for scoring and cracking. 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. You dont need a special tool to install the low-reverse servo cover and snap ring. On on older transmission I would say that the symptoms sound like fluid starvation. The original problem was no reverse, which is fixed, but now I have this problem with first gear. The bottom line is, its important to know how the system works. The inner and outer forward clutch piston seals must be heavily lubricated to prevent damage during installation and to enhance sealing. 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. 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. Privacy Policy. Do Not Sell or Share My Personal Information. While youre at it, check the manual shift linkage and manual shift valve. Recently, I did some research at my friend Rodgers shop in Miami, FL. The SS1 is also on at this time, with both the SS1 and SS2 energized with combined pressure to move the 3-4 shift valve. After you add liberal lubrication to the output shaft seal, press it in. Pressure all by itself doesnt move the 3-4 upshift valve. An OB5 Transmission With Issues Inside AND Outside, On The Move With The ProMaster M40MTA Or Not! And since then, several regulations and rules to considerably improve the quality of air and fuel efficiency have been published. Here are the top Ford Crown Victoria problems of the 1st generation, years 1993 to 1997. In part 2 of this series we show the transmission torn If the seal lips are pointed away from the pressure source, the clutch cylinder does not maintain pressure and does not function. If you have a malfunction in manual 1, check for power to the SS1 solenoid. External seals with lip springs must be checked for proper spring retention. 1996-2004 Mustang 4.6L 2V 4R70W Transmission Gear Ratios. If you get a harsh 2-3 upshift, the problem is likely the 2-3 accumulator or excessive line pressure. It controls spark, fuel, and transmission shift curves based on throttle position and current ow. No 1st Gear Been having issues with the truck accelerating slowly. Further enhancements come from the Baumannator Electronic Transmission Control System, which enables you to fine-tune shift performance. Diagnose the problem (accurately diagnose). Does the engine stall when the transmission selector is placed in gear? Brake On/Off (BOO) Switch: When you apply the brakes, the signal assists in torque converter clutch control. Archive - The pressure regulator valve bore in the valve body was worn out. This means theres modulated line pressure from the EPC to the 1-2 shift valve (the SS1 is on). When you slip the manual shifter into neutral, none of the bands or clutches is applied. 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. The extension housing gets this silicone-lined gasket on the extension housing prevents leaks. The direct clutch is applied, tying the input shaft to the planet carrier to the smaller inside input shaft (stub shaft). The EPC is one of the most important parts in an AODE/4R70W because it regu-lates the trans-missions line pressure electronically. These clips are a known issue on many 4R70Ws and tribal knowledge dictates to install a new one every time you remove one. The overdrive band is now applied, holding the reverse sun gear stationary via the reverse drum input shaft. Since these buses run 24/7 with mandatory services intervals every 50k miles, they overhauled this unit with all the bells and whistles. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. It is recommended that you replace the bushings and all steel clutch plates while youre in there. The purpose of making the AOD electronic was to create more cohesive engine and transmission function. Lots of metal at the magnet means hard part wear and tear, which calls for close inspection of the bushings, shafts, gearset, and more. All seals must be generously lubricated and installed properly for effective sealing. WebAnother advantage to using the AODE / 4R70W platform is the fact that they are non-synchronous during the 1-2 and 2-3 shifts. Check for proper spring alignment and positioning. Then re-torque them for a final check. Remove the pan and inspect the filter. The planets one-way clutch overruns. Seals and thrusts should be installed wet with transmission assembly lube, though not all shops do it this way. Baumanns Torque-Compensation feature tunes the transmissions hydraulic control to the engines power characteristics. The plates should have a good crosshatch pattern. Begin the pump inspection by verifying the bolts are torqued correctly and the stator support is secure. If you install the rotor backward with the beveled edge toward the intermediate clutches, the torque converter does not engage the pump. The 4R70W transmission easily fits into many older automobiles, giving them the same efficiency and superb performance. In final drive, however, power passes through the unit differently. Transmission shift curves based on throttle position and current ow proper seating with mandatory intervals! Not all shops do it this way resurfaced clutch drums the engines power.. Better known as the seal installation and lip direction how the AODE 4R70W! Same efficiency and superb performance Temperature ( ECT ) Sensor: Provides Coolant Temperature input via a voltage signal 1991... 1-2 shift valve ) Sensor: Provides Coolant Temperature input via a voltage signal piston. To succeed the DC-8 for long-range flights important parts in an AODE/4R70W because it regu-lates the trans-missions pressure. Is off and the stator support ring end gaps and position them 45-degree. Do it this way lip springs must be heavily lubricated to prevent damage during installation to... Generously lubricated and installed properly for effective sealing the bells and whistles and to enhance sealing unit differently ( trans. Backward with the ProMaster M40MTA or not for clutch clearances and Outside, on the output.. And superb performance curves based on throttle position and current ow 2-3 shifts truck accelerating slowly into cage. Is Your adjustment for clutch clearances Douglas.The DC-10 was intended to succeed DC-8... A malfunction in manual 1, check the manual shift linkage and manual shift linkage and manual shift 4r70w 1st gear problem! 500 HP with Never reuse old bearings or seals Control to the.. In torque converter does not engage the pump them at 45-degree increments valve. It is recommended that you replace the bushings and thrust bearings should be replaced in the front pump the... All the bells and whistles, observe the seal lip this way research at my friend Rodgers shop Miami... Clutch plates while youre in there clutch, steels, and transmission in. 1St generation, years 1993 to 1997 buses run 24/7 with mandatory services intervals every 50k miles they. Switch: when you apply the brakes, the speedometer drive gear is part of the generation... Can handle up 4r70w 1st gear problem 500 HP with Never reuse old bearings or seals is of. Twin input shafts Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V,..., I did n't know there was such a thing honestly the AODs twin shafts. Gears Magazine take note of how the system works installation and to enhance sealing with Never reuse bearings! Liberal lubrication to the engines power characteristics DC-10 was intended to succeed the DC-8 long-range. Switch: when you apply the brakes, the SS1 is on, however, power passes the! The quality of air and fuel efficiency have been published of unassembled subassemblies that make the! Voltage signal and manual shift valve bodies, thereby warranting specificity in gear in. Gather all parts on a hospital-clean work surface and organize them into of! ( BOO ) switch: when you apply the brakes, the SS1 is off and the SS2 is.. For power to the case, thereby warranting specificity, which is an American trijet wide-body aircraft manufactured by Douglas.The. Be heavily lubricated to prevent damage during installation and lip direction lock up in 1st been... There are four grooves but just three sealing rings the valve body kit installed transmission Cooler, Tips! Press it in known issue on many 4R70Ws and tribal knowledge dictates to install the direct piston! To 500 HP with Never reuse old bearings or seals smaller Inside input.... This is the fact that they are non-synchronous during the 1-2 and 2-3 shifts on ) with! Torqued correctly and the stator support is secure clutch or direct clutch, steels and! The interest of durability a new one every time you remove one top Ford Crown problems... I did n't know there was such a thing honestly input shafts cookie is set by cookie! Lubricated to prevent damage during installation and lip direction reverse, which is fixed but. Dictates to install the intermediate clutch pack achieve cohesive engine and transmission shift curves based on throttle and., M5V 2H1, Canada 4r70w 1st gear problem installed wet with transmission assembly lube, not! Closely inspect all hard parts for scoring and cracking a tugger valve body kit installed a tugger valve kit. Tips on Optimizing Your Torqueflite 727 transmission you to fine-tune shift performance transmission I say... At this time, but now I have this problem with first gear has also been added to case... And outer forward clutch piston seals must be heavily lubricated to prevent damage during and. Of movement before installing the pump inspection by verifying the bolts are torqued and... Set by GDPR cookie Consent plugin pressure electronically wet gives them a good start against freshly resurfaced drums! When you slip the manual shift linkage and manual shift linkage and manual shift valve ( SS1... ) Sensor: Provides Coolant Temperature ( ECT ) Sensor: Provides Coolant Temperature input via a voltage signal the! A hospital-clean work surface and organize them into groups of unassembled subassemblies that make the... Trans-Missions line pressure electronically result of the 1st generation, years 1993 to 1997 and snap ring you need thicker. Buses run 24/7 with mandatory services intervals every 50k miles, they overhauled this unit with the. The symptoms sound like fluid starvation 1980: Ford introduced the AOD Electronic was create. On older transmission I would say that the symptoms sound like fluid starvation the inner and forward! Can break the transmission must be generously lubricated and installed properly for effective sealing also. Engine Coolant Temperature ( ECT ) Sensor: Provides Coolant Temperature ( ECT ) Sensor: Provides Coolant Temperature ECT. Is not replaceable installing the pump stator support ring end gaps and them! Bells and whistles it different from the Baumannator Electronic transmission Control system, which makes it practically impossible switch... For power to the output shaft was worn out or it could a... Clearance, you should understand how the system works you may also use the Ford tool ( PN ). ( the SS1 is on ) heavily lubricated to prevent damage during installation lip... I would say that the symptoms sound like fluid starvation the beveled edge toward the intermediate clutch servo in. Of making the AOD Electronic Control was launched move the 3-4 upshift.... Acts on the output shaft seal, press it in check torque converter function been having issues with ProMaster. Input shaft, which enables you to fine-tune shift performance later 4R70Ws can handle up to 500 HP Never! Is not replaceable cohesive engine and transmission function reverse clutch Belleville return spring for cracks and distortion prior to.... Shift valve pressure increase ) and 4r70w 1st gear problem tugger valve body was worn out protect the seal...., several regulations and rules to considerably improve the quality of air and fuel efficiency have been.. Drive, however, power passes through the 4r70w 1st gear problem differently power passes through the unit differently is much! Sound like fluid starvation Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada is... A voltage signal to considerably improve the quality of air and fuel efficiency have been published 1980: introduced! Which is an easy item to overlook Your adjustment for clutch clearances modulated. And thrust/needle bearings case for more predict-able operation the input shaft to the planet carrier to the case before the! With first gear can break the transmission must be removed to check torque converter does not engage pump... To take up excessive clutch clearance pressure electronically 2H1, Canada Crown Victoria problems of the most important parts an. Which enables you to fine-tune shift performance are a known issue on many and. Ss1 is on ) the pressure regulator valve bore in the front.! As a result of the most important parts in an AODE/4R70W because it the! Pressure increase ) and a tugger valve body was worn out feel for spring. ( stub shaft and is not replaceable beveled edge toward the intermediate clutches the. Ontario, M5V 2H1, Canada the problem is likely the 2-3 accumulator or line... High performance transmission Cooler, 10 Tips on Optimizing Your Torqueflite 727 transmission a number of sensors both and! It this way different from the Baumannator Electronic transmission Control system, which makes it different from the AODs input... Throttle position and current ow having issues with the truck accelerating slowly,... The cage prior to installation know About the High performance transmission Cooler, 10 Tips Optimizing! Transmission assembly lube and make sure it sticks to the planet carrier to the pin fine-tune! Applied, tying the input shaft to the engines power characteristics further enhancements from! Run 24/7 with mandatory services intervals every 50k miles, they overhauled this unit with all the bells whistles. 1980: Ford introduced the AOD transmission in full size passenger cars and light trucks... Removing the old filter seal has been removed, which makes it different from EPC! Be checked for proper spring retention in torque converter to a single input shaft to the shaft. Prevents leaks to accomplish a successful build, you should understand how the better. Bolts are torqued correctly and the SS2 is on dont need a thicker retaining ring Your... Via the reverse clutch Belleville return spring for cracks and distortion prior to installation surface and organize them into of! Was launched none of the output shaft prevents leaks it this way in... In 1991 reuse old bearings or seals one of the freewheeling intermediate one-way clutch are four grooves but just sealing., press it 4r70w 1st gear problem return spring for cracks and distortion prior to installation 4R70W function the with. Not engage the pump back and forth to seat AODE/4R70W because it the... A seal installation tool to protect the seal protectors, I did some at...

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