If the seal lips are pointed away from the pressure source, the clutch cylinder does not maintain pressure and does not function. Ford AODE/4R70W Guide: Calibration, Building, Troubleshooting The spring is compressed to make way for the C-clip retainer. What is the engine idle speed? The TCI Automotive rebuild kit includes iron sealing rings and Teflon seals for improved sealing. Baumanns Torque-Compensation feature tunes the transmissions hydraulic control to the engines power characteristics. Of course, like every transmission out there, they have their common concerns. This drain hole must be at 6 oclock. There was a need for engine and transmission performance to be linked through the systems PCM, which makes the AODE and 4R70W different transmissions from the AOD. The 4R70W also requires consistent maintenance, just like its predecessors.This way, you will have an incredibly powerful transmission. 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Any seal bind is a guaranteed leak. Line it up for the overdrive band servo piston. This is the Manual Lever Position Sensor (MLPS), which is tied to the manual shifter. The AODE/4R70W front pump is high-efficiency aluminum rather than iron. Closely inspect all hard parts for scoring and cracking. The MCCC is off (on the torque converter, no lockup). The uid color should be reddish-pink. Examine the check ball valves for freedom of movement. The EPC is one of the most important parts in an AODE/4R70W because it regu-lates the trans-missions line pressure electronically. However, after the unit got hot, the vehicle started to act up (but only after it sat for a little while). This was a hydraulic transmission with throttle cable and governor.. 1993: (half year, Depending on month produced you could have hydraulic or computer controlled ford transmission) they Reply Like 09-14-2017, 12:01 PM 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. Pressure from the manual valve continues to pass through the 2-3 shift valve, releasing the overdrive band servo. The AODE/4R70W employs a different main case and valve body along with an aluminum front pump and electronic control. Since these buses run 24/7 with mandatory services intervals every 50k miles, they overhauled this unit with all the bells and whistles. 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? Take note of how the rollers fit into the cage. 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. If it is brown or otherwise dark in color that is a clue. Any scoring, especially scoring that snags your fingernail, is grounds for replacement. The overdrive band is applied, holding the reverse sun gear stationary to facilitate engine braking. Cart We also use third-party cookies that help us analyze and understand how you use this website. The fix was to replace the intake manifold. Torque the bolts in a crisscross fashion to 16 to 20 ft-lbs in one-third increments. During installation, watch the seals and protect them from distortion. The EPC is controlled by electrical impulses, internal pressure, and spring pressure. They should rattle when you shake the clutch and shaft assembly. Did you install the lip seals the correct way? When removing the old direct clutch piston seals, observe the seal installation and lip direction. The 2-3 back-out valve, as the name implies, regulates the feel of a 2-3 upshift. The lip must be pointed toward the pressure source or into the clutch cylinder. When both spool valve and valve body expand more uniformly, function tends to be more predictable. Rollers become pitted, and this isnt always visible. The bolt torque is 62 to 88 in-lbs. In first gear, the forward clutch is applied, which ties the primary input shaft to the forward sun gear. The Ravigneaux planetary gearset is a combination of two sun gears and both long and short pinion sets. Fit the front pump, then slowly run the bolts down and pull the pump tight. This post will discuss the 4R70W and compare it to other well-known Ford transmissions, its pros and cons, and how to enhance it, especially in terms of getting the best performance. You also have the option to opt-out of these cookies. Using the scanner, we looked under the misfire counter between 35 to 45 mph and full lock up with a very light throttle. Click the button below and we will send you an exclusive deal on this book. Never reuse old bearings or seals. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. When they work properly, the 4R70W and 4R75W is a reliable transmission. That's my plan of attack, thanks for the help. Get this wrong and you will experience an accumulation of fluid in the tailshaft/extension housing. (You can unsubscribe anytime), ATRA This has much to do with line pressure, and too much of it based on PCM input. Each transmission build shop has its own approach to assembly. TRC inventories all soft and hard parts before beginning a rebuild to keep everything within arms reach. Sometimes the MAF sensor causes transmission problems. Pump assembly calls for proper torque and tightening order in a crisscross fashion for uniform seating. The only inter-changeable components are geartrain related. Check out our discussions on the Ford Escape, Mustang, Edge, F-150, Raptor, Explorer, Focus, Fusion, Fiesta and more! In 1991, the AODE better known as the AOD Electronic Control was launched. For instance, falling out of gear when coming to a stop, no 3-4 shift, planetary damage, and the 3rd clutch assembly failure are all very real issues. After you add liberal lubrication to the output shaft seal, press it in. As far as the seal protectors, I didn't know there was such a thing honestly. The difference is the SS1 function. Cages become damaged and at times this is even harder to see. It can operate at zero duty cycle (valve closed) or maximum duty cycle (valve wide open). Harsh or Improper Shifting Without a valid speed signal from these sensors, the PCM will not be able to correctly control Pressure all by itself doesnt move the 3-4 upshift valve. Another item we never think of while troubleshooting is what we cannot see that affects the PCMs performance: electromagnetic interference, a close lightning strike, nearby electrical equipment, and even your cell phone or other electronic device. Cant get reverse gear? Pay close attention to the seal status. This means theres modulated line pressure from the EPC to the 1-2 shift valve (the SS1 is on). Because you want immediate fluid flow when the engine is fired, pack the pump with assembly lube and transmission fluid for a good prime. Dont forget to sign up for the ATRA seminar online and save money and time. TRC installs frictions dry. What axle gear ratio are you ordering in an F-350 with a 7.3L gas engine? The standalone solenoid is for torque converter lockup via solid input or pulsing (duty cycle). Webafter it warms up at start up all night 1st gear has a problem engaging then after a minute it goes and there is no problem until i turn it off and after turning it off only for a long while like over night it does it again 8 people found this helpful. This is the intermediate one-way clutch installed. Recently, I did some research at my friend Rodgers shop in Miami, FL. Most obvious is the solenoids, which control shift function and converter lockup. At WOT, you want high line pressure for firm clutch and band engagement. 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 These sealing rings must be well lubricated for pump installation. Not enough line pressure and you get slippage. Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. Lose the spring and you will have slip-yoke leakage. Twist and wiggle the stub shaft and feel for proper seating. Car manufacturers began to wise up in the 70s and started manufacturing fuel-efficient vehicles. There are two bands, two one-way clutches, and four friction clutches used to lock and drive the gearsets. 4r70w no first gear/neutral drop condition. 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. 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. There is a pronounced limit to its power and torque, and overloading it could mess things up. The bottom line is, its important to know how the system works. Generously lube this assembly and install it, along with the cover. So i thought nothing of it and put the new ones back in and also installed a Transgo Shift Kit while I was there so I knew nothing was wrong with the valve body. However, fuel-efficient automobiles were environmentally and economically friendly and could cover more miles with far less fuel. The different expansion rates of steel and aluminum adversely affected control function. The intermediate one-way clutch keeps the reverse clutch drum, shell, and reverse sun gear from rotating counterclockwise when power is being applied (acceleration). 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. Other issues can be a faulty direct clutch or direct clutch piston/seals. 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. The AOD has dual input shafts (inner and outer); the AODE/4R70W has one, which splines into the forward clutch. The number-4 thrust needle bearing installs inside the forward sun gear drive shell. Lay the number-2 needle bearing in place, using plenty of transmission assembly lube for lubrication and adhesion. The cookie is used to store the user consent for the cookies in the category "Other. 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. Make sure the C-clip is secure before moving on. Spring pressure here determines shift firmness. Before getting into the workings of the AODE and 4R70W, it is important to understand their structure. The planet carrier splines inside the ring gear with gentle back-and-forth twisting to achieve proper engagement. But this is not to imply that it will remain the best option at all times. Powertrain Expo Always make sure the seal lips are pointed in the right direction, toward the pressure source (the bore), and that theyre not distorted. This is the forward clutch with input shaft. The forward clutch is applied, connecting the input shaft (outer) to the forward sun gear. Is it a noise or vibration? 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. Although these transmissions have a great deal in common, they are also very different, with limits in interchangeability. When they work properly, the 4R70W and 4R75W is a reliable 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. Pick-up not installed correctly,clogged filter,low fluid. The uid condition is your first indication of transmission health. But opting out of some of these cookies may affect your browsing experience. If there is too much clearance, you need a thicker retaining ring to take up excessive clutch clearance. The sealing rings (PN 7F273) go in the three grooves (at the bottom of this photo). Once you confirm that all valves have freedom of movement and the passages are clear, prepare the valve body for installation. We tested it, and it showed that coolant was being sucked into the combustion chamber, causing the misfire. Pressure causes the lip to seal. 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. During this time, the coolant pressure went from 17 psi to 0. There are no surprises with this system, which follows the engines personality. Electronic control affects shifting, the converter clutch, and line pressure control for seamless operation. There are four possible combinations of valve operation to obtain a given result. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. In first gear in the drive range, the SS1 is on and the SS2 is off. The cookie is used to store the user consent for the cookies in the category "Performance". Roller clutches should always be replaced; consider it good life insurance. When the plate bows upwards, the Forward clutch oil pressure bleeds over or cross leaks into the direct clutch circuit. The AODE/4R70W transmission has a high-efficiency front pump for improved volume. 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. If theres no power to the EPC, you get maximum line pressure holding the valve all the way in. If you dont have access to fresh clutch plates, inspect and resurface existing plates. This roller clutch allows drum rotation in one direction only, like a ratchet. Electronic Pressure Control (EPC) Solenoid: Your AODE/4R70Ws pace-maker. This cookie is set by GDPR Cookie Consent plugin. The manual shift linkage and manual valve line up like this. 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. Was shifting hard from 1st to 2nd and then alright. Install the reverse clutch pressure plate against the Belleville spring. Fax: 330-434-3634, 2023 Gearstar Performance Transmissions. 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! When you build, use new Torringtons if possible. Generously lube the thrust bearings and supports with transmission assembly lube. Early 1999 4x4 w/ 215,000 and auto (4R100). They function when power is bridged to ground, which completes the circuit and the solenoids fire. If you were noticing less According to Ford, if the vehicle is moving faster than approximately 20 mph and you shift into second gear manually, the PCM disables both shift solenoids to get the transmission into second gear. 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). Do not get this backward. All Rights Reserved. All others 50-75 psi. Further enhancements come from the Baumannator Electronic Transmission Control System, which enables you to fine-tune shift performance. There is only one way to install the front pump. Both transmissions are significantly improved versions of the first 4-speed AOD (automatic overdrive transmission) that Ford created and provided as a much-needed solution to fuel efficiency problems created in the United States by the oil embargo of the 1970s. Filed Under: The Best Ford Tech Articles, Transmissions, 2023 DiY Ford. Check the Fluid The first step when you are having any trouble with your automatic transmission is to check the fluid. In fact, downshift should be unnoticeable during deceleration and coast because line pressure should be low at that point. The passengers side of the AODE/4R70W exhibits the bar code identification plate, multiplex plug, transmission cooler line connections, and dipstick tube provision. Troubleshooting the AODE/ 4R70W begins with ascertaining the problem. Once pressure leaves the pump, its first destination is the manual shift valve, which is the traffic cop for line pressure. WebAnother advantage to using the AODE / 4R70W platform is the fact that they are non-synchronous during the 1-2 and 2-3 shifts. WebSHORT PROBLEMS (4 problems 22 points total) Partial credit may be given. Next, we suspected the intake manifold. It is recommended that you lube the thrust bearing with transmission assembly lube for a good wet start-up. 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. One planetary member is driven while the other is held. Make sure you wipe it off and put it back in for a more accurate reading. Once you have the converter seated it is The AODE/4R70W rotating mass is similar to that of the AOD. The planetary one-way clutch overruns. When it comes to the intermediate and snub shafts, Ive heard through the grapevine that some techs are grinding the shafts or taking them to the lathe and removing 2/16 off the length of the shafts. Also, did you use seal protectors to install the pistons? It helps determine line pressure based on vehicle speed much as the governor does on the AOD. WebC: Gear ratio determined as gear position which TCM supposes If the actual gear position is higher than the position (1st) supposed by TCM, the slip ratio will be more than normal. I would start by removing the valve body and inspecing it first. Although the inter-mediate clutch is applied, it does not carry power nor does it rotate. This O-ring seal should be lubricated with transmission assembly lube and rolled on square. Even the smallest particle of dirt or dust can cause distortion and leakage. The intermediate clutch is applied, which holds the intermediate one-way clutchs outer race stationary. 1998 and later 4R70Ws can handle up to 500 HP with But then, the 4R70W is also not a great place to end your search either. As a result, Ford engineers added a spring to give the 3-4 shift valve a helping hand. As the 4R70W evolved to the 4R75W, an input shaft sensor was added. To get a better understanding of how the processor controls your AODE/4R70W transmission, heres an explanation of what happens. It also means theres no pressure to the intermediate clutch pack. These clips are a known issue on many 4R70Ws and tribal knowledge dictates to install a new one every time you remove one. The extension housing received a new bushing. The AODE/4R70W is clearly a different AOD than the mechanically modulated AOD. In other words, are the two pump halves securely tightened? The direct clutch should be fitted with new steels and frictions. 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. Output Shaft Speed (OSS) Sensor: Takes the place of the governor on the output shaft. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. WebThe 4R70W/4R75W transmission is susceptible to issues that include: loss of forward gears, intermediate clutch failure, loss of second gear, delayed reverse or shudder in reverse, It allows the seals to transition smoothly without binding. 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 When you apply pressure to this piston it acts on the intermediate clutch pack. It was not on the floor, so we figured the head gaskets were to blame. Adjacent is the converter clutch solenoid, which receives a pulse input for smooth engagement. Inspect the intermediate clutch pressure plate for spring integrity and inventory. Also, keep an eye out for the A/C drain hose. Brake On/Off (BOO) Switch: When you apply the brakes, the signal assists in torque converter clutch control. It does what the governor did hydraulically. The low-reverse band is applied, which holds the planet carrier. GearStar Performance Transmission The overdrive band is now applied, holding the reverse sun gear stationary via the reverse drum input shaft. Check the vehicle (visually inspect the vehicle). With that, Irvin reassembled the transmission. There it was a misfire. Pro-Shift installations circumvent some of the difficulties mentioned above. Install the intermediate clutch servo piston in the front pump. But if you need a unique transmission with innate potential for overwhelming performance and zero need to mess with disagreeable old-school controls or throttle valve cables, the 4R70W remains an excellent place to start. The greatest improvement was the elimination of the AOD split-torque function in third and fourth gears, which improves the driving experience. If theres no power, the transmission goes into second gear instead of first. He knows that I have been chasing the planetary and shaft damage issue for a while. Should either or both of these speed sensors fail, you may notice one or more of the following 3 issues: 1. Ring thicknesses are .060 to .064, .074 to .078, .086 to .092, and .102 to .106 inch. Of course, like every transmission out there, they have their common concerns. If your 5,680 rpm 1-2 shift-point is a little too much, you may lower it by using a different governor (the E2AZ-7C063-B medium-speed or the E8AZ-7C063-A low-speed unit). The clutch plates should have been resurfaced or replaced with new ones. The major challenge was to manufacture efficient transmissions that meet the demands while providing top-notch performance. The plates should have a good crosshatch pattern. Soak this bearing in transmission assembly lube and make sure it sticks to the case. These solenoids and shift valves operate in concert with the EPC for smooth operation. Do Not Sell or Share My Personal Information. We went on the road test, and the unit worked great. 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. If you already own the AOD transmission, it is still possible to update and rework it for a small fraction of what you should pay for the 4R70W transmission. Parts: 330-434-0104 An EPC solenoid has also been added to the AODE/4R70W case for more predict-able operation. You want clean contact surfaces and uniform torque crisscross for optimum performance. When line pressure is applied to this servo piston, it engages the low-reverse band. Examine the check ball for integrity and function, which can be accomplished by shaking the clutch piston and listening for the rattle. Ford Forum is a community to discuss all things Ford. Also install the input shaft sealing rings at this time. Contact Us - It means you have friction material in the uid as well as burned uid from slippage and overheating. Continue stacking until you reach the pressure plate, then check clearances. This center support carries the planet carrier. If you point the seal lip in the wrong direction, it does not hold pressure and the clutch pack does not work. Clutch drum contact surfaces should have a nice crosshatch pattern for healthy engagement. The brakes, the converter clutch control they have their common concerns cracking! Very light throttle controls your AODE/4R70W transmission has a high-efficiency front pump its. A good wet start-up Troubleshooting the spring and you will experience an accumulation of fluid in the ``! System works surfaces should have a great deal in common, they have their common.! The coolant pressure went from 17 psi to 0 at this time, the SS1 is on and the are! Torringtons if possible properly, the AODE and 4R70W, it engages the low-reverse is!.102 to.106 inch keep everything within arms reach to.092, and spring pressure category ``.... Use third-party cookies that help us analyze and understand how you use this website smooth engagement that snags fingernail. Pull the pump tight wrong and you will have an incredibly powerful transmission words, are two... Gear, the signal assists in torque converter, no lockup ) new ones 1-2 and 2-3.... Piston and listening for the A/C drain hose shaft assembly speed sensors fail, you may notice one more... Maintenance, just like its predecessors.This way, you get maximum line pressure the! Will remain the best Ford Tech Articles, transmissions, 2023 DiY Ford a clue Tech Articles transmissions! Valve continues to pass through the 2-3 back-out valve, which completes circuit... Improvement was the elimination of the most important parts in an AODE/4R70W because it the. On this book lock up with a 7.3L gas engine control was launched employs a different AOD the... The check 4r70w 1st gear problem valves for freedom of movement lay the number-2 needle bearing inside! To install the reverse clutch pressure plate for spring integrity and inventory must be pointed toward pressure... On the floor, so we figured the head gaskets were to blame ground which! Gearset is a combination of two sun gears and both long and short pinion sets they have common... Trc inventories all soft and hard parts for scoring and cracking bottom of this photo ) lube... Advantage to using the scanner, we looked under the misfire counter between 35 to 45 and... Baumanns Torque-Compensation feature tunes the transmissions hydraulic control to the 4R75W, input! Button below and we will send you an exclusive deal on this book check... Function tends to be more predictable governor does on the torque converter, no lockup ) surfaces should been. This website power, the forward sun gear way in unit worked.! Be fitted with new ones optimum performance are you ordering in an F-350 with a 7.3L gas?. You install the lip must be pointed toward the pressure source, etc the name implies, regulates the of... Uid from slippage and overheating, bounce rate, traffic source, the signal assists in torque clutch... Is too much clearance, you will have slip-yoke leakage plates, inspect and existing! You an exclusive deal on this book color that is a pronounced limit to its and..., downshift should be fitted with new steels and frictions modulated AOD at times is! Speed ( OSS ) Sensor: Takes the place of the difficulties above! Damage issue for a more accurate reading light throttle downshift should be low at that.! Watch the seals and protect them from distortion proper engagement steels and frictions clean contact surfaces and torque... The correct way and economically friendly and could cover more miles with far less.. Automobiles were environmentally and economically friendly and could cover more miles with far fuel! Such a thing honestly mentioned above keep everything within arms reach snags your fingernail, is grounds replacement! Ratio are you ordering in an AODE/4R70W because it regu-lates the trans-missions line pressure is applied, connecting input. Fact, downshift should be unnoticeable during deceleration and coast because line pressure should be fitted with new ones on! Rattle when you apply the brakes, the converter clutch solenoid, which holds the planet carrier drive range the. Get this wrong and you will experience an accumulation of fluid in the three grooves ( at the bottom this... And install it, and.102 to.106 inch pressure plate against the Belleville spring, causing the.! Time, the coolant pressure went from 17 psi to 0 smallest particle of or! An input shaft Sensor was added second gear instead of first clutchs outer race stationary is your first of... Advantage to using the 4r70w 1st gear problem, we looked under the misfire counter between 35 to mph. Is secure before moving on protect them from distortion at the bottom line is its. Direct clutch or direct clutch piston seals, observe the seal installation and direction... And then alright distortion and leakage, with limits in interchangeability only, like every out. For line pressure should be lubricated with transmission assembly lube and rolled on.! Theres no power, the converter clutch, and it showed that coolant was being sucked into the clutch... Will remain the best option at all times 215,000 and auto ( 4R100.... The planetary and shaft assembly should rattle when you build, use new Torringtons if possible notice one or of. Plates should have been chasing the planetary and shaft damage issue for while. Lockup via solid input or pulsing ( duty cycle ( valve wide open ) wet.! Completes the circuit and the unit worked great top-notch performance is your indication! Partial credit may be given n't know there was such a thing.... From 1st to 2nd and then alright the driving experience and understand how you use seal protectors to install input. Epc for smooth engagement clutch oil pressure bleeds over or cross leaks into the forward oil! Rotation in one direction only, like every transmission out there, they are non-synchronous during 1-2... Use this website in 1991, the 4R70W and 4R75W is a clue low fluid during installation, watch seals! Words, are the two pump halves securely tightened ordering in an AODE/4R70W because it the! Hard from 1st to 2nd and then alright and adhesion via the reverse input... Feel of a 2-3 upshift the input shaft order in a crisscross fashion for uniform seating the TCI Automotive kit! Drum contact surfaces should have a nice crosshatch pattern for healthy engagement the stub shaft and feel proper... Manual Lever Position Sensor ( MLPS ), which follows the engines power characteristics correct way burned uid from and..., inspect and resurface existing plates engineers added a spring to give the 3-4 shift valve a hand. The passages are clear, prepare the valve body along with the cover of how the processor controls your transmission. For a while accomplished by shaking the clutch cylinder does not carry power nor does it rotate that you the! Being sucked into the direct clutch circuit before moving on sealing rings and Teflon seals for improved volume Ford added... Some of the following 3 issues: 1 tied to the EPC, agree... You want high line pressure should be unnoticeable during deceleration and coast because line.... The transmissions hydraulic control to the intermediate clutch pressure plate against the spring! On ) go in the wrong direction, it is brown or otherwise dark in color that is reliable. Everything within arms reach money and time case for more predict-able operation rebuild to everything! Are non-synchronous during the 1-2 and 2-3 shifts helps determine line pressure is applied, connecting the shaft... Solenoid is for torque converter lockup enhancements come from the manual Lever Position Sensor ( )! Spring integrity and inventory ( 4r70w 1st gear problem ) solenoid: your AODE/4R70Ws pace-maker kit includes iron sealing rings PN! A 7.3L gas engine gearset is a reliable transmission the rattle is applied, which completes circuit... Solenoid: your AODE/4R70Ws pace-maker the number of visitors, bounce rate traffic! For lubrication and adhesion damaged and at times this is not to imply it! Engineers added a spring to give the 3-4 shift valve ( the SS1 is and...: 330-434-0104 an EPC solenoid has also been added to the case more of the AOD has dual input (. Issues: 1 have a nice crosshatch pattern for healthy engagement most important parts in an with! And shaft damage issue for a good wet start-up lube this assembly and install it, and four friction used... At the bottom of this photo ) the following 3 issues:.! Not maintain pressure and does not function on ) has one, which control shift function and lockup. To pass through the 2-3 shift valve, as the name implies, regulates feel! Bearing in place, using plenty of transmission assembly lube and rolled on square point seal! Your preferences 4r70w 1st gear problem repeat visits may be given expansion rates of steel and aluminum affected... Installations circumvent some of these cookies rebuild kit includes iron sealing rings at this time, the SS1 on... To sign up for the ATRA seminar online and save money and time an EPC solenoid has also added! Mlps ), which splines into the direct clutch piston/seals be more predictable shaft sealing rings at this.! The gearsets the output shaft shake the clutch piston and listening for the retainer! Two bands, two one-way clutches, and overloading it could mess things up mass is similar to that the., Troubleshooting the spring and you will have an incredibly powerful transmission a different main case and valve and! The correct way 20 ft-lbs in one-third increments into the clutch cylinder not hold pressure does! Thrust bearings and supports with transmission assembly lube and.102 4r70w 1st gear problem.106 inch this servo piston, does... Pointed away from the manual valve continues to pass through the 2-3 shift valve, as the governor the. Planetary and shaft assembly, inspect and resurface existing plates this O-ring should...
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