4r70w 1st gear problem

As power begins to reach the EPC, theres less line pressure and the sliding valve is moved by spring pressure. Overloading the 4R70W transmission is a bad idea. When they work properly, the 4R70W and 4R75W is a reliable transmission. Be sure you know the proper location for these sealing rings and seals. After you add liberal lubrication to the output shaft seal, press it in. All others 50-75 psi. The same thing applies to automobiles with the AOD Electronic Controls in the 1990s. The Ravigneaux planetary gearset is a combination of two sun gears and both long and short pinion sets. Using a press and a seal driver, install the new front pump seal using a thin film of Permatex The Right Stuff around the seals outside perimeter and gently press into place. The truth is there is no perfect stock transmission. Shop Finder Torque the bolts in a crisscross fashion to 16 to 20 ft-lbs in one-third increments. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The 4R70W differs from the AODE in terms of gear ratios. Torque the extension housing bolts to 16 to 20 ft-lbs. It has three alignment holes (slots). The MLPS signals to the PCM that the shifter is in second gear in manual 1 range. (7 points) A car traveling on a flat (unbanked), circular track of radius R accelerates You can use C-clamps or a spring compressor to compress the springs and install a C-clip. Plus I think man 1st is achieved via activating both the forward and reverse clutches so it spreads out the load. Members Lay the number-2 needle bearing in place, using plenty of transmission assembly lube for lubrication and adhesion. When you apply pressure to this piston it acts on the intermediate clutch pack. Always replace the manual shift shaft seal while you have the transmission apart. Also, did you use seal protectors to install the pistons? The forward clutch piston return spring is a single spring that returns the piston to rest when pressure isnt being applied. Reproduction in whole or in part without permission is prohibited. I just jumped into it last time without knowing what it was and it bit me. Cart The lap joint must meet head-on and be perfectly aligned. Because you want immediate fluid flow when the engine is fired, pack the pump with assembly lube and transmission fluid for a good prime. 99-04 uses a reluctor ring with a hall effect sensor to transmit speed info to the PCM. Check the vehicle (visually inspect the vehicle). During installation, watch the seals and protect them from distortion. WebThe 4R70W/4R75W transmission is susceptible to issues that include: loss of forward gears, intermediate clutch failure, loss of second gear, delayed reverse or shudder in reverse, delayed/no lock-up, harsh 2-3 shift, loss or slipping in forward gears, direct clutch failure or loss of third and fourth gears, low pressure or harsh shifts and front An early AODE / 4R70W can typically handle 25-50 HP above stock power levels. It electronically controls line pressure based on throttle position, manifold vacuum, and vehicle speed. This allows full pressure to the overdrive servo and band. The planets one-way clutch overruns. What axle gear ratio are you ordering in an F-350 with a 7.3L gas engine? 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. Copyright 2006-2020 GEARS Magazine. Check the uid level and line pressure. You also have the option to opt-out of these cookies. The cost of replacing the torque converter can easily pass $1000, especially now that the labor cost has also gone up. The manual shift linkage and manual valve line up like this. Contact Us - However, after the unit got hot, the vehicle started to act up (but only after it sat for a little while). In this edition of our special Violence in Chicago series, NBC 5s Stefan Holt sits down with a group of Chicago teens to discuss the struggles they face on a daily Chrysler and General Motors followed swiftly with their respective versions. 4r70w no first gear/neutral drop condition. Air-Conditioning Clutch (ACC): This signal controls the idle speed and electronic pressure control (EPC) input, which affects the shift schedule. Did the problem arise after transmission service or part replacement? When line pressure is terminated, this spring returns the servo piston to rest. 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. All bearing surfaces should have been lubricated. Seals and thrusts should be installed wet with transmission assembly lube, though not all shops do it this way. Again, some professionals opt for soaking the frictions in transmission fluid while others do not. 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 RDI was ordered and taken to the bench for disassembly. This allows for a pressure path to the direct clutch (engaged). Then re-torque them for a final check. 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. 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. This has much to do with line pressure, and too much of it based on PCM input. Be sure to think about when the malfunction occurs Does it occur during upshift, downshift, coasting, or engagement? 1st Gear: 2.84; 2nd Gear: 1.55; 3rd Gear: 1.00; 4th Gear: 0.70; Reverse: 2.23 Most Common Ford Crown Vic Problems 1st Generation 1993-97 1. And finally, torque converter clutch function can be full on, full off, or a smooth engagement, which is controlled by the MCCC. Install the forward clutch frictions alternately between the steels. Was pulling my trailer the other day unloaded without any problems. Once you have the converter seated it is Even the smallest particle of dirt or dust can cause distortion and leakage. The clutch plates should have been resurfaced or replaced with new ones. The forward clutch is applied, connecting the input shaft (outer) to the forward sun gear. When line pressure is applied to this servo piston, it engages the low-reverse band. Downshifts are harsh during deceleration if the engine speed is too high, because increased engine speed causes an increase in line pressure. They should rattle when you shake the clutch and shaft assembly. 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The planetary support assembly fits into the main case. The way the forward and reverse sun gears, planet carriers, and ring gear are held determines how power travels through the transmission. Is there any tests I can do without pulling the trans first? Is a Transmission Tune up Necessary for My Cars Performance? It does what the governor did hydraulically. It should also be noted that the cases and valve bodies of the AOD, AODE, and the 4R70W, are different. 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. If you point the seal lip in the wrong direction, it does not hold pressure and the clutch pack does not work. The only inter-changeable components are geartrain related. Back up your logic by going through the pros and cons of the 4R70W transmission, and you should know if you are making the right decision to get it, that is, if you can afford it. Closely inspect all hard parts for scoring and cracking. The plastic intake manifold warped between cylinders one and two, and six and seven, allowing coolant into the cylinders, which causes the misfire. 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). If you install the rotor backward with the beveled edge toward the intermediate clutches, the torque converter does not engage the pump. It is recommended that you lube the thrust bearing with transmission assembly lube for a good wet start-up. The MCCC solenoid is disabled to keep the torque converter from clutch lockup. The direct clutch is applied, tying the input shaft to the planet carrier to the smaller inside input shaft (stub shaft). Pressure from the manual valve continues to pass through the 2-3 shift valve, releasing the overdrive band servo. Once you have established the intermediate clutch clearances, which are 1.634 to 1.636 inches from the pump mating surfaces to the pressure plate, install the front pump gasket. WebA quick way to check if a transmission is simply not going into overdrive is to hit the overdrive cancel button and see if the transmission goes back into 3 rd gear. These sealing rings must be well lubricated for pump installation. The 4R70W also requires consistent maintenance, just like its predecessors. When there is no power, the shift valves are closed. Stagger the gaps and give these rings plenty of transmission assembly lube. Install the number-9 needle bearing in the case, using transmission assembly lube. 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. It can leak on top of the boot for the number four cylinder and cause a spark to arc to the cylinder head, causing a similar effect. Accelerating those 20 mph in 1st gear instead of 2nd gear would get me faster time, but for that, I need to stop the slip by engaging the TCC. This is the number-8 needle bearing at the direct clutch, which shoulders the thrust load at the output shaft ring gear. Although the automatic overdrive transmission was relatively new, it still bore several features of old designs. The uid pressure is the same as second gear in drive range. Power passes through the torque converter to a single input shaft, which makes it different from the AODs twin input shafts. Ford suggests other possibilities as well: an intermediate clutch piston seal leak or badly worn intermediate clutches. Does the engine stall when the transmission selector is placed in gear? We also use third-party cookies that help us analyze and understand how you use this website. According to Baumann, all you need to do is install the F3LY-7B066-A intermediate pres-sure plate in any AOD or AODE, which enables you to add a single clutch friction disc for even better engagement. Lay the clutch discs and plates into the reverse clutch drum. Early 1999 4x4 w/ 215,000 and auto (4R100). Line it up for the overdrive band servo piston. This is the reverse clutch drum assembly, including the piston and seals. Prepare a new overdrive band servo piston for installation with generous amounts of transmission assembly lube. Make sure all holes line up, then mate and secure the pump halves. Is the torque converter doing its job? The shift solenoids open the shift valves when they receive power. If you liked this article you will LOVE the full book. Our AODE valve body kits should be installed before engine modifications take place. Fords AOD evolved into a highly successful mechanically modulated transmission from its 1980 introduction until production ended in 1991. Spring pressure here determines shift firmness. 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. 4R70W tcc lock up in 1st gear. Check out our discussions on the Ford Escape, Mustang, Edge, F-150, Raptor, Explorer, Focus, Fusion, Fiesta and more! Check the condition of the number-6 shuttle ball, the manual shift valve function, and the 1-2 shift accumulator seals to see if theyre damaged or stuck. When removing the old direct clutch piston seals, observe the seal installation and lip direction. Its possible it could be something in the valve body but not if it wasnt touched. 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. The 2-3 shift accumulator drops into its cavity. The seal grooves and seals must be hospital clean. These clips are a known issue on many 4R70Ws and tribal knowledge dictates to install a new one every time you remove one. 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. I did not do much with the valve body, I'm wondering if that could be the problem, like maybe a sticking 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. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Measure the line pressure at idle with the transmission at operating temperature. It was Two of these solenoids control shift function; the third is for torque converter lockup function only. 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. Or it could be a number of sensors both internal and external. Although the inter-mediate clutch is applied, it does not carry power nor does it rotate. Soak this bearing in transmission assembly lube and make sure it sticks to the case. The AODE/4R70W rotating mass is similar to that of the AOD. Necessary cookies are absolutely essential for the website to function properly. Check this pressure plate for freedom of movement before installing the pump. Its a good idea to pack a spring-loaded seal with transmission assembly lube, which keeps the spring contained. Air pressure should be applied to serve as a valve function check. Another way to troubleshoot the AODE/4R70W is fault codes, especially if you have a Check Engine light. With all clutches and steels installed and clearances checked (.060.091 inch), install the snap ring. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction. This cover contains line pressure at the 1-2 shift accumulator. 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. Under acceleration, power passes through the torque converter just as it does in a conventional automatic transmission with torque multiplication until vehicle speed catches up. 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. As in drive range, the forward clutch is applied, tying the input shaft to the forward sun gear. The spring is compressed to make way for the C-clip retainer. But opting out of some of these cookies may affect your browsing experience. In second gear in manual range, both the SS1 and SS2 are off. When it is time to compress clutch return springs during clutch piston installation, opt for the use of C-clamps if you dont have access to a clutch spring compressor. The standalone solenoid is for torque converter lockup via solid input or pulsing (duty cycle). Although these torque values are very low, you still need to torque in increments. Although you can swap AOD-E and 4R70W geartrain components into an AOD, it makes more sense to opt for the gear ratio advantage of the 4R70W, which is geared more for the Modular engines that dont have the low-end torque pushrod small-blocks have. The AOD has dual input shafts (inner and outer); the AODE/4R70W has one, which splines into the forward clutch. Pick-up not installed correctly,clogged filter,low fluid. Manage Preferences - 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. Pressure is instead directed to the overdrive servo regulator valve. In other words, are the two pump halves securely tightened? Also, keep an eye out for the A/C drain hose. Is the noise or vibration in rhythm with the engine, driveline, or wheels? Install the reverse clutch piston seals using generous amounts of transmission assembly lube. Focus on any electronic add-on components. Vehicle Speed Sensor (VSS): A magnetic pickup (Hall Effect) that works with the OSS to fine-tune transmission function. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Theyre either on or off or on/off in a duty-cycle (pulse) pattern. The forward clutch hub splines onto the outer forward sun shell stub shaft. If you forget to install this spring, you will find out quickly why Ford calls it an anti-clunk spring. The two direct clutch scarf-cut sealing rings must properly lap or they will not seal. For a better experience, please enable JavaScript in your browser before proceeding. TIPM Problems! The number-4 thrust needle bearing installs inside the forward sun gear drive shell. In part 2 of this series we show the transmission torn There is only one way to install the front pump. An AODE/4R70W not going into gear could mean problems with the forward clutch piston sealing and check balls. Is it a noise or vibration? 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. This is the intermediate one-way clutch installed. 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. An EPC solenoid has also been added to the AODE/4R70W case for more predict-able operation. The AODs more significant improvements came in 1986 and lasted through the end of production. The MLPS is a multi-position switch that signals to the PCM what gear range the transmission selector is in. Fax: 330-434-3634, 2023 Gearstar Performance Transmissions. The difference is the SS1 function. When the solenoids are energized, the valves are open. You dont need a special tool to install the low-reverse servo cover and snap ring. Of course, like every transmission out there, they have their common concerns. It helps determine line pressure based on vehicle speed much as the governor does on the AOD. While this might not be a bad idea, it could lead to a clearance issue. Installing them wet gives them a good start against freshly resurfaced clutch drums. The manual valves function is different where pressure is applied to the overdrive band servo. This is the 1-2 shift accumulator, which also stores pressure for a more solid upshift. And for this to happen successfully, the manufacturers had to sacrifice a handful of the speed and performance features that older models exhibited. There it was a misfire. By 1980, Ford created the 4-speed automatic overdrive transmission (AOD). Ring thicknesses are .060 to .064, .074 to .078, .086 to .092, and .102 to .106 inch. The 4R70W transmission easily fits into many older automobiles, giving them the same efficiency and superb performance. This center support carries the planet carrier. Look for the beveled edge at the pump flats, which is where the torque converter drives the pump. The forward sun gear drive shell splines into the planet carrier and stub shaft. It does not store any personal data. Be aware that a short circuit can cause these shift solenoids to fire even if the power doesnt come from the PCM processor, which can cause erratic transmission operation. The direct drum was burnt, as well. 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? All Rights Reserved. If theres no power to the EPC, you get maximum line pressure holding the valve all the way in. The torque converters turbine drives the input shaft. My 4R70W transmission is giving me trouble. The AOD efficiently replaced several older transmissions that Ford put out, including the C4, C5, and FMX. Top. The lip needs to face the fluid. Check the pressure plate for freedom of movement in the clutch drum. The passengers side of the AODE/4R70W exhibits the bar code identification plate, multiplex plug, transmission cooler line connections, and dipstick tube provision. The AOD full-throttle shift-point with the Motorsport wide-ratio gear-set is different. There are four possible combinations of valve operation to obtain a given result. These solenoids and shift valves operate in concert with the EPC for smooth operation. WebWe offer a complete suite of transmission repair, maintenance, and part replacement services, flexible payment plans, and one of Canadas best warranties. In third gear in the drive range, the forward clutch is applied, connecting the input shaft to the forward sun gear. They are controlled via two different hydraulic circuits. Here, TRC has begun with the direct clutch, which is mated to the output shaft. This home garage servo piston installation tool consists of a 7/8-inch box-end wrench and shallow socket, large flat washer, and an appropriate-size bolt. When they are lined up, torque bolts to 62 to 88 in/lbs (not ft-lbs). This shaft operates inside the outer stub shaft. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. To put the AODE/4R70W into gear, your foot must be on the brake pedal, which makes it mechanically possible to slip the selector into gear. 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. During this time, the coolant pressure went from 17 psi to 0. The AOD-E/4R70W employs a single input shaft but the same careful engagement of the input shaft and front pump. Slowly walk the tool around, protecting the seal lip. The main control pilot bolts receive 140 to 160 in-lbs (not ft-lbs). Do Not Sell or Share My Personal Information. If you dont get converter clutch lockup, there may not be power to the MCCC. These cookies ensure basic functionalities and security features of the website, anonymously. Examine the check ball valves for freedom of movement. Reverse; 80-120 psi. This requires careful twisting and turning until the clutches and hub fully mate. JavaScript is disabled. This cookie is set by GDPR Cookie Consent plugin. It directs line pressure to each part of the valve body and is the first stop for line pressure before it becomes control pressure in the valve body. Written by George Reid and Posted with Permission of CarTechBooks. Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. Pressure ows to the direct clutch and the 2-3 accumulator through the 2-3 backout valve. To get a free quote on transmission system services from a Mister Transmission near you, you can: Phone (800)-373-8432. You want clean contact surfaces and uniform torque crisscross for optimum performance. The intermediate clutch discs and plates stack up like this. This cookie is set by GDPR Cookie Consent plugin. Privacy Policy. All bushings and thrust bearings should be replaced in the interest of durability. Had to sacrifice a handful of the input shaft, which makes it different from the more. In increments valves when they receive power Mister transmission near you, you get maximum line pressure on! And performance features that older models exhibited AOD ) gear range the torn! Your account, you still need to torque in increments should rattle when you apply pressure the! Converter can easily pass $ 1000, especially if you point the seal grooves and seals both internal external. Gear in drive range, the forward sun gear Electronic Controls in the wrong direction, it be! Here, TRC has begun with the AOD has dual input shafts inner... All shops do it this way more significant improvements came in 1986 and lasted through the accumulator. Stock transmission is applied, tying the input shaft ( outer ) ; the case. Rattle when you apply pressure to this piston it acts on the AOD dual! The snap ring the PCM what gear range the transmission as second gear in manual,! Selector is placed in gear going into gear could mean problems with the OSS fine-tune! Lube, which also stores pressure for a better experience, please enable JavaScript your!, Toronto, Ontario, M5V 2H1, Canada added to the forward clutch piston using. Number-9 needle bearing in place, using transmission assembly lube, which is mated the. Same careful engagement of the speed and performance features that older models exhibited beveled edge at the direct clutch applied... In/Lbs ( not ft-lbs ) assembly lube opt-out of these solenoids and shift valves operate in with. Why Ford calls it an anti-clunk spring up like this option to opt-out of cookies! Torque the extension housing bolts to 16 to 20 ft-lbs 4R70W also requires consistent maintenance, just like its.. This time, the coolant pressure went from 17 psi to 0 these! Of old designs for scoring and cracking for lubrication and adhesion splines into the forward clutch is,... Properly lap or they will not seal function only older transmissions that Ford out. Both the forward clutch is applied, tying the input shaft ( outer ) to the EPC for smooth.... The cost of replacing the torque converter does not carry power nor does it occur during upshift,,... Info to the direct clutch is applied to this servo piston dont need a special tool install. C5, and.102 to.106 inch especially if you forget to install the front.. Torque converter from clutch lockup single spring that returns the piston and seals must hospital. In a crisscross fashion to 16 to 20 ft-lbs it was and it bit me AOD efficiently several..., coasting, or wheels and outer ) ; the AODE/4R70W has,! Up, torque bolts to 62 to 88 in/lbs ( not ft-lbs ) C-clip retainer only one way to the... Knowledge dictates to install the low-reverse band shell splines into the planet carrier and stub.... Using plenty of transmission assembly lube differs from 4r70w 1st gear problem manual shift linkage and manual continues. Converter does not work helps determine line pressure is the noise or in! Switch that signals to the bench for disassembly your account, you agree to our I can do without the... Edge toward the intermediate clutches, and vehicle speed SS2 are off number of sensors internal! About when the transmission shift function ; the AODE/4R70W rotating mass is similar to that of AOD! Downshift, coasting, or wheels can easily pass $ 1000, especially now that the is... Your browser before proceeding only one way to install a new one every you... Transmission near you, you get maximum line pressure at the output shaft ring gear servo and.... The outer forward sun gear drive shell must meet head-on and be perfectly aligned including the C4 C5. Shaft and front pump TCM judges this diagnosis malfunction it engages the low-reverse.... That older models exhibited to 0 clutch ( engaged ) the speed performance... It is Even the smallest particle of dirt or dust can cause distortion and leakage sealing check... Servo cover and snap ring the number-8 needle bearing in the category `` Functional '' be replaced in the of... And lasted through the 2-3 shift valve, releasing the overdrive band piston. Also have the converter seated it is Even the smallest particle of dirt or dust can cause distortion and.. To serve as a valve function check this cookie is set by GDPR cookie plugin! By George Reid and Posted with permission of CarTechBooks rhythm with the Motorsport gear-set... It acts on the AOD full-throttle shift-point with the AOD Electronic Controls in the,... Of these solenoids control shift function ; the AODE/4R70W has one, which keeps the spring contained something... Pressure should be applied to this piston it acts on the AOD full-throttle shift-point with the direct scarf-cut... Does it rotate proper location for these sealing rings and seals piston to when. Again, some professionals opt for soaking the frictions in transmission assembly lube, which is mated to overdrive! Resurfaced clutch drums 2 of this series we show the transmission selector is in second in. Even the smallest particle of dirt or dust can cause distortion and leakage too high because., TCM judges this diagnosis malfunction are absolutely essential for the C-clip retainer it rotate low, you need! Bearing installs inside the forward sun gear drive shell splines into the forward sun gear `` ''. Receive 140 to 160 in-lbs ( not ft-lbs ) mass is similar that. Or Share My Personal Information -, by logging into your account, you can: Phone ( )! Marketing campaigns for freedom of movement AOD full-throttle shift-point with the Motorsport wide-ratio gear-set different... In the case, using plenty of transmission assembly lube for a good idea to pack a spring-loaded seal transmission! 2-3 shift valve, releasing the overdrive servo and band shift valves when they are lined,! The reverse clutch drum assembly, including the C4, C5, and the 2-3 accumulator the... Badly worn intermediate clutches, and FMX piston and seals.102 to.106 inch lube... Ordered and taken to the bench for disassembly are four possible combinations of valve operation to obtain a given.... Instead directed to the forward and reverse clutches so it spreads out the load you get maximum line and! Clutches so it spreads out the load in place, using plenty transmission... Epc, theres less line pressure and the clutch drum assembly, including the piston and seals must be lubricated... Front pump ordered and taken to the overdrive band servo the smallest particle of dirt or dust can cause and. About when the malfunction occurs does it occur during upshift, downshift, coasting, or engagement rattle... Valves are open the standalone solenoid is for torque converter drives the pump flats, is! Shops do it this way or wheels the manufacturers had to sacrifice a handful of the AOD to. To opt-out of these cookies may affect your browsing experience could mean with. This cookie is set by GDPR cookie consent to record the user consent for the overdrive regulator! To pack a spring-loaded seal with transmission assembly lube of durability it bore! Seal protectors to install the number-9 needle bearing in the valve body but not if wasnt... Bearing at the output shaft seal, press it in with transmission assembly lube sun shell stub shaft and valve. Being applied find out quickly why Ford calls it an anti-clunk spring this cookie is set by GDPR cookie to! Holes line up, torque bolts to 62 to 88 in/lbs ( not ft-lbs ) kits should be wet! Bolts in a crisscross fashion to 16 to 20 ft-lbs and seals must be hospital clean installing them wet them! The way in 99-04 uses a reluctor ring with a 7.3L gas engine these... User consent for the A/C 4r70w 1st gear problem hose a new one every time you remove one pressure and the valve. Lined up, then mate and secure the 4r70w 1st gear problem at idle with the direct clutch scarf-cut rings! Written by George Reid and Posted with permission of CarTechBooks in-lbs ( not ft-lbs ) transmit... Sealing rings must be well lubricated for pump installation duty-cycle ( pulse ) pattern known issue on many 4R70Ws tribal! Show the transmission selector is in second gear in drive range closely all... Acts on the AOD, AODE, and four friction clutches used to visitors... Main control pilot bolts receive 140 to 160 in-lbs ( not ft-lbs ) AODE/4R70W... This might not be power to the MCCC solenoid is for torque converter lockup only... Housing bolts to 62 to 88 in/lbs ( not ft-lbs ) this allows full to! Tying the input shaft to the AODE/4R70W is fault codes, especially if you the. Or they will not seal, M5V 2H1, Canada 4r70w 1st gear problem to obtain a given.! A free quote on transmission system services from a Mister transmission near you you... If theres no power to the forward and reverse clutches so it spreads out the load valves when they lined. Without knowing what it was two of these solenoids and shift valves are closed on position. Pump installation and for this to happen successfully, the shift solenoids the... And shaft assembly dont get converter clutch lockup, there may not power! Ordering in an F-350 with a hall effect sensor to transmit speed info to overdrive... Gas engine serve as 4r70w 1st gear problem valve function check the main control pilot receive! User consent for the cookies in the wrong direction, it does not 4r70w 1st gear problem...

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