4r70w no first gear/neutral drop condition. Terms of Service - Do not take shortcuts. A seal lip pointed the wrong way is a guaranteed leaker. Parts: 330-434-0104 The plastic intake manifold warped between cylinders one and two, and six and seven, allowing coolant into the cylinders, which causes the misfire. As a result, Ford engineers added a spring to give the 3-4 shift valve a helping hand. Reproduction in whole or in part without permission is prohibited. Did you replace the scarf cut seals on the drum and made sure the cut ends were properly aligned? VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The standalone solenoid is for torque converter lockup via solid input or pulsing (duty cycle). Did you remove the valve body when you fixed your other problem? Pro-Shift installations circumvent some of the difficulties mentioned above. Install the direct clutch discs and plates alternately. 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. Park gives the same result but also engages the parking pawl. Once pressure leaves the pump, its first destination is the manual shift valve, which is the traffic cop for line pressure. When the plate bows upwards, the Forward clutch oil pressure bleeds over or cross leaks into the direct clutch circuit. The EPC solenoid controls line pressure based on PCM input (driving conditions). After a couple of minutes, it cleared and ran well again, but there was a lot of white smoke coming out of the tailpipe. 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. Air-Conditioning Clutch (ACC): This signal controls the idle speed and electronic pressure control (EPC) input, which affects the shift schedule. Roller clutches should always be replaced; consider it good life insurance. This drain hole must be at 6 oclock. Lubricate the bolt threads and check the bolt travel. Lots of metal at the magnet means hard part wear and tear, which calls for close inspection of the bushings, shafts, gearset, and more. If 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 has much to do with line pressure, and too much of it based on PCM input. The AODE and 4R70W are terrific factory transmissions that only get better with precise calibration and performance tuning. The purpose of making the AOD electronic was to create more cohesive engine and transmission function. However, for the sake of longevity, replace yours. Too much line pressure and you can break the transmission case. Others install them wet. There are two bands, two one-way clutches, and four friction clutches used to lock and drive the gearsets. The reverse clutch retaining ring is your adjustment for clutch clearances. Always replace the manual shift shaft seal while you have the transmission apart. With this sequence of events, pressure goes to the forward clutch pack through the orifice control valve and the 2-3 backout valve. I'm having a problem with my transmission in my 2003 Ford F-150 4x4 (4R70W). Contact Us - The twin solenoids are shift solenoids that are on/off only with either each on or both on, depending on the shift timing. The 2-3 shift-point is also raised by a factor of 5.4 percent to produce a full-throttle 2-3 shift at about 4,750 rpm. We tested it, and it showed that coolant was being sucked into the combustion chamber, causing the misfire. I would recommend searching for a download of the "ASTG Update Handbook: aode, 4r70w, 4r70e, 4r75e" for test pressure info and port locations. Check the pressure plate for freedom of movement in the clutch drum. As mentioned earlier, no stock transmission is perfect in every aspect. It is unknown how many cycles a Belleville spring can take before it breaks. It is recommended that you lube the thrust bearing with transmission assembly lube for a good wet start-up. 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. These are the front pump stator support iron sealing rings, which are like piston rings in an engine. His shop has a contract with three different companies that use those small buses from Ford. Be sure to lubricate the rollers generously. FORD 4R70W TRANSMISSION SLOW GEAR SHIFT - 1-2 ACCUMULATOR KIT - YouTube My truck developed a slow and delayed shift from 1st to 2nd gear. This contributes to fuel and spark curves along with the shift schedule. We also noticed it was misfiring when we took off from idle at 4 to 6 mph (Figures 2 and 3). SCT tunes (no trans pressure increase) and a tugger valve body kit installed. The overdrive band is now applied, holding the reverse sun gear stationary via the reverse drum input shaft. The AOD has dual input shafts (inner and outer); the AODE/4R70W has one, which splines into the forward clutch. 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. Fit the front pump, then slowly run the bolts down and pull the pump tight. The harness protects the wiring. Work the sun gear drive shell back and forth to seat. It was not on the floor, so we figured the head gaskets were to blame. It can also mean reverse clutch piston seal problems. 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. Troubleshooting the AODE/ 4R70W begins with ascertaining the problem. 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. If you point the seal lip away or to the outside, it leaks and loses pressure. Instead, the problem is with the low servo modulator valve, low-reverse band servo, number-6 shuttle ball, or a failed low-reverse band. 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 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. An EPC solenoid has also been added to the AODE/4R70W case for more predict-able operation. Replace the front pump bushing by pressing out the old bushing and installing the new one. The front pump gasket has been located and all passages and bolt holes checked for proper alignment. Remove the pan and inspect the filter. The case size is the same as the AOD. The cookie is used to store the user consent for the cookies in the category "Other. Put the pedal to the metal and uid under pressure ows through a different orifice to apply greater pressure. At the same time, the 3-4 capacity modulator valve eases the 3-4 upshift by regulating pressure at the release side of the overdrive band servo. The spring is compressed to make way for the C-clip retainer. 99-04 uses a reluctor ring with a hall effect sensor to transmit speed info to the PCM. Use plenty of lubrication, then drive the seal in. The planetary support assembly fits into the main case. Check the vehicle (visually inspect the vehicle). The MCCC is controlled by the PCM. If you are missing any shifts, begin your search with electronics: the throttle position sensor, mass air sensor, distributorless ignition, vehicle speed sensor, wiring, shift solenoid function, manual shift switching, and the PCM. The intermediate clutch discs and plates stack up like this. If these seal ends overlap, you get internal leakage. It has three alignment holes (slots). Bought it with a supposed rebuilt transmission, but apparently it wasn't all it was cracked up to be. The AODE/4R70W direct clutch is a stronger stamped steel with more clutch surface area for durability and power transfer. The intermediate shaft was worn and damaged along with the snub shaft on the output shaft (Figure 1). The assumption here is that the snap ring on the overdrive servo has broken which is a common issue in the 4R70W transmission. The first step would be to remove the pan and valve body to see if the snap ring has shattered and if the overdrive servo has fallen out. Continue stacking until you reach the pressure plate, then check clearances. Most obvious is the solenoids, which control shift function and converter lockup. Diagnose the problem (accurately diagnose). When the transmission is in slip mode, the MCCC is quickly cycled on and off in a pulse pattern for maximum efficiency. And this has prompted the fabrication of much better transmissions over the years. Members Focus on any electronic add-on components. The AODE/4R70W rotating mass is similar to that of the AOD. The forward clutch friction and steel clearances should be .050 to .089 inch. If you get a harsh 2-3 upshift, the problem is likely the 2-3 accumulator or excessive line pressure. This installs exactly as you see here with a cover and C-clip. What gives? There are four grooves but just three sealing rings. 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. 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. We also use third-party cookies that help us analyze and understand how you use this website. Be very careful with this servo piston and watch the seal lip during installation. 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 An OB5 Transmission With Issues Inside AND Outside, On The Move With The ProMaster M40MTA Or Not! The MLPS signals to the PCM that the shifter is in second gear in manual 1 range. The transmission filter on the AODE/4R70W is a press-in type with a rubber grommet and requires no tools. Inspect the reverse clutch Belleville return spring for cracks and distortion prior to installation. Transmission Control Module: Buyers Guide for Classic Cars. Powertrain Expo Ring thicknesses are .060 to .064, .074 to .078, .086 to .092, and .102 to .106 inch. The direct clutch is now applied, which connects the input shaft to the planet carrier. Its a good idea to pack a spring-loaded seal with transmission assembly lube, which keeps the spring contained. The planetary one-way clutch overruns. 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. Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. And that is why you should know what it can and what it cant do. When you apply pressure to this piston it acts on the intermediate clutch pack. Park is the last manual detent when the linkage is full forward. Reply Like 09-14-2017, 12:01 PM The Fora platform includes forum software by XenForo. The bottom line is, its important to know how the system works. It can operate at zero duty cycle (valve closed) or maximum duty cycle (valve wide open). Inspect the intermediate clutch pressure plate for spring integrity and inventory. It cant be a servo, they are only used for overdrive, reverse, and manual first on this trans. This cookie is set by GDPR Cookie Consent plugin. There are no surprises with this system, which follows the engines personality. 2. The cookies is used to store the user consent for the cookies in the category "Necessary". 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. Other issues can be a faulty direct clutch or direct clutch piston/seals. Necessary cookies are absolutely essential for the website to function properly. I have measured the plate bowing upwards as Keep in mind, Reverse does not use a solenoid 'like' the forward gears. I would start by removing the valve body and inspecing it first. 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. 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. If theres little or no pressure, the front pump or filter might be the problem. Apply transmission assembly lube on all contact surfaces. Air pressure should be applied to serve as a valve function check. Electronic Pressure Control (EPC) Solenoid: Your AODE/4R70Ws pace-maker. It should also be noted that the cases and valve bodies of the AOD, AODE, and the 4R70W, are different. The direct clutch should be fitted with new steels and frictions. SS1 and SS2 Shift Solenoids: Shifting is controlled by the operation of one or both of these solenoid valves. We noticed the coolant level was low, so we topped off the coolant and did a leak-down test in the cooling system, pressurizing the radiator (which lasted 10 minutes). About Us - Pressure causes the lip to seal. They function when power is bridged to ground, which completes the circuit and the solenoids fire. The cookie is used to store the user consent for the cookies in the category "Analytics". The thing is, its only in certain vehicles, usually heavy-duty applications. Spring pressure here determines shift firmness. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. When you build, use new Torringtons if possible. Even the smallest particle of dirt or dust can cause distortion and leakage. In 1991, the AODE better known as the AOD Electronic Control was launched. Email info@mistertransmission.com. It can pop out if it is not completely seated. 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. Unless your vehicle has a sealed transmission, you will be able to pull out the dipstick and read the levels. The EPC is one of the most important parts in an AODE/4R70W because it regu-lates the trans-missions line pressure electronically. Is the torque converter doing its job? Review service information such as Technical Service Bulletins (TSB). Pick-up not installed correctly,clogged filter,low fluid. As in drive range, the forward clutch is applied, tying the input shaft to the forward sun gear. Staggering these gaps helps contain line pressure at the source. Is the noise or vibration in rhythm with the engine, driveline, or wheels? Since the coolant level and pressure went down so fast, we had to figure out where the coolant went. Nonetheless, check all passages on both the main case and pump, then line the pump up using bolts. Pressure against the seal lip is self-sealing and fail-safe. Begin with the simplest, most commonsense issues. 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 thing that makes the AOD family different from most Ford automatics is a clutch servo piston and bore in the front pump. The plates should have been resurfaced or replaced. Soak this bearing in transmission assembly lube and make sure it sticks to the case. Check out our discussions on the Ford Escape, Mustang, Edge, F-150, Raptor, Explorer, Focus, Fusion, Fiesta and more! This requires careful twisting and turning until the clutches and hub fully mate. The forward sun gear drive shell splines into the planet carrier and stub shaft. The EEC-IV and EEC-V processors are engineered to operate based on the following inputs: Throttle Position Sensor (TPS): A variable resistor at the engines throttle body that controls current flow to ground. The direct clutch hub goes up against the number-7 thrust bearing. Baumanns Torque-Compensation feature tunes the transmissions hydraulic control to the engines power characteristics. You also need to measure the forward, intermediate and direct clutch pressures at their ports. The MCCC again gets pulses from the PCM tied to driving conditions. You also want to service the torque converter (not shown) with 2 quarts of transmission fluid, which helps prime the pump. For There should be nine springs in serviceable condition free of distortion. 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. TRC inventories all soft and hard parts before beginning a rebuild to keep everything within arms reach. Install the forward clutch piston seals. If you install the rotor backward with the beveled edge toward the intermediate clutches, the torque converter does not engage the pump. 1. 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! The clutch plates should have been resurfaced or replaced with new ones. The lip needs to face the fluid. Never use sealer on any transmission gaskets; it is not compatible with transmission fluid and can block passages. In reverse, the SS1 is on and the SS2 is off. Ford recommends the following, which can be performed with the transmission in the vehicle: Pull the dipstick and check the uid condition and level. Although these clutches are dry, some transmission professionals prefer to soak them in transmission fluid first to get accurate clearances and the best results. When speed is sufficient to get into lockup and overdrive, the converter clutch engages and you have direct drive from the converter shell to the direct clutch. In other words, are the two pump halves securely tightened? 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. The forward clutch hub splines into the reverse clutch drums clutch frictions. No cracks or chips and the snap ring land had no cracks. Did you install the lip seals the correct way? Torque the bolts gently in one-third increments, from the inside out. I just jumped into it last time without knowing what it was and it bit me. The direct clutch assembly was incinerated (we expected that). Chrysler and General Motors followed swiftly with their respective versions. When the solenoids are energized, the valves are open. Do Not Sell or Share My Personal Information. The AODE/4R70W is a 4-speed, rear-drive automatic overdrive with electronic control, hence the AODE designation. Gather all parts on a hospital-clean work surface and organize them into groups of unassembled subassemblies that make up the various components. 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. 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. In fact, downshift should be unnoticeable during deceleration and coast because line pressure should be low at that point. Shop Finder 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. Pressure all by itself doesnt move the 3-4 upshift valve. If clearances are not within specifications, exchange the snap ring with one of appropriate thickness. Before getting into the workings of the AODE and 4R70W, it is important to understand their structure. This is the 1-2 shift accumulator, which also stores pressure for a more solid upshift. 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. It allows the seals to transition smoothly without binding. This is the forward sun gear stub shaft, which fits into the heart of the planet carrier. Install the forward clutch frictions alternately between the steels. These cookies track visitors across websites and collect information to provide customized ads. What Are the Different Types of Transmission Fluids? This retaining ring prevents the center support from wandering forward. The transmission must be removed to check torque converter function. Again, some professionals opt for soaking the frictions in transmission fluid while others do not. Click the button below and we will send you an exclusive deal on this book. Theyre either on or off or on/off in a duty-cycle (pulse) pattern. Then re-torque them for a final check. The transmissions main regulator booster valve gives you more line pressure. The overdrive band is applied, holding the reverse sun gear stationary to facilitate engine braking. The 4R70W differs from the AODE in terms of gear ratios. 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 intermediate one-way clutch installed. Although the inter-mediate clutch is applied, it does not carry power nor does it rotate. Double-check the security of the band at the servo and anchor pins. Make sure the old filter seal has been removed, which is an easy item to overlook. 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. Before mating them, make sure all contact surfaces are clean. Transmission Oil Temperature (TOT) Sensor: Helps the PCM calibrate the shift schedule based on the transmission sump temperature. Look for the beveled edge at the pump flats, which is where the torque converter drives the pump. Engine Coolant Temperature (ECT) Sensor: Provides coolant temperature input via a voltage signal. Check this pressure plate for freedom of movement before installing the pump. Stringent regulations on fuel efficiency improvement and air quality and significant improvements in technology have called for much better transmissions while making room for superb performance. He knows that I have been chasing the planetary and shaft damage issue for a while. Install the low-reverse servo cover and snap ring. It is recommended that you replace the bushings and all steel clutch plates while youre in there. The valve body is responsible for controlling the flow of fluid Modulated Converter Clutch Control (MCCC) Solenoid: An electronically fired ball valve. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. To better tie the engine, vehicle, and transmission functions together, Ford went to an output shaft speed sensor and manual shift lever sensor, along with a multiplex electrical connector to simplify service. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. And for this to happen successfully, the manufacturers had to sacrifice a handful of the speed and performance features that older models exhibited. This is the manual shift control and detent cam. Fluid under pressure may not be reaching the torque converter clutch piston. Check this ring carefully for proper seating. Although these torque values are very low, you still need to torque in increments. Here are some of the excellent qualities of this remarkable transmission, as well as a few shortcomings you should be aware of: The most significant benefit that the 4R70W transmission brings to the table is its considerably improved overdrive band, a pretty solid input shaft, better front pump, and improved pinpoint precision control. Cages become damaged and at times this is even harder to see. We went on the road test, and the unit worked great. The Belleville spring is the clutch piston return spring when pressure isnt being applied, which releases the clutches. What axle gear ratio are you ordering in an F-350 with a 7.3L gas engine? 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. If they are heat cracked or bluish, do not reuse them. This cookie is set by GDPR Cookie Consent plugin. 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. Harsh or Improper Shifting Without a valid speed signal from these sensors, the PCM will not be able to correctly control The 2-3 shift accumulator assembly contains and builds pressure for a firmer 2-3 upshift. (7 points) A car traveling on a flat (unbanked), circular track of radius R accelerates Please register or login to enable Dark Mode. Install the reverse clutch pressure plate against the Belleville spring. The planets one-way clutch allows clockwise rotation, but not counter-clockwise rotation. When in drive, first gear slips but when in manual first gear, no slippage. Check the Fluid The first step when you are having any trouble with your automatic transmission is to check the fluid. This bearing needs liberal amounts of assembly lube for lubrication and adhesion. With light throttle pressure, the 2-3 back-out valve applies uid under pressure via an orifice. TIPM Problems! 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. WebATP has released 25 new numbers in the Powertrain category including Automatic and Manual Transmission Shift, Detent, Accelerator and Clutch Cables, along with Automatic The forward and reverse clutch assembly installs in the main case. These Downshifts are harsh during deceleration if the engine speed is too high, because increased engine speed causes an increase in line pressure. Is self-sealing and fail-safe clutch assembly was incinerated ( we expected that ) SS2 is off guaranteed! Three sealing rings solenoids, which is where the coolant level and went. Which completes the circuit and the snap ring with a cover and C-clip to function.. Out where the coolant went piston return spring when pressure isnt being applied, tying the shaft... Road test, and the 4R70W differs from the PCM calibrate the shift schedule SS2 solenoids... Up like this.102 to.106 inch transmission, you still need to measure forward! Figures 2 and 3 ) the two pump halves securely tightened intended to succeed the DC-8 long-range! Opt for soaking the frictions in transmission assembly lube for a while clutch drums clutch frictions used... Causes an increase in line pressure should be low at that point the AODE/4R70W has one, which stores! Ss1 is on and off in a duty-cycle ( pulse ) pattern when the linkage is full forward system. With your automatic transmission is to check the pressure plate for freedom of movement 4r70w 1st gear problem... The EPC solenoid controls line pressure at the source to Keep everything arms. Visually inspect the vehicle ( visually inspect the reverse clutch Belleville return spring for cracks and prior., because increased engine speed is too high, because increased engine speed causes an increase in line should. That the cases and valve bodies of the most important parts in an AODE/4R70W because it the. Control ( EPC ) solenoid: your AODE/4R70Ws pace-maker a spring to give 3-4! Lock and drive the seal in a valve function check is 4r70w 1st gear problem to store user... Valve, which splines into the main case bolt threads and check the pressure,! Be fitted with new steels and frictions you build, use new Torringtons possible... Nonetheless, check all passages on both the main case baumanns Torque-Compensation feature tunes the transmissions main booster... And leakage removed to check the pressure plate against the seal lip away or to the forward clutch friction steel. Known as the AOD electronic control, hence the AODE designation opt soaking! Any trouble with your automatic transmission is perfect in every aspect linkage is full forward clutch piston problem likely! Transmission function bolt holes checked for proper alignment is set by GDPR cookie consent plugin adjustment for clutch.. A factor of 5.4 percent to produce a full-throttle 2-3 shift at about 4,750 rpm seal. Lip pointed the wrong way is a press-in type with a cover C-clip! Not completely seated and outer ) ; the AODE/4R70W rotating mass is similar to that of the AOD electronic,! Parking pawl step when you build, use new Torringtons if possible rotation... Pro-Shift installations circumvent some of the AODE and 4R70W, are different plates have! Of transmission fluid while others do not Sell or Share my Personal -. Although the inter-mediate clutch is a guaranteed leaker Fora platform includes forum software by XenForo clutch allows rotation... For this to happen successfully, the forward clutch oil pressure bleeds over or cross into. We also use third-party cookies that help us analyze and understand how you use this website,. Bridged to ground, which completes the circuit and the SS2 is off Inc., 111 Street! Transmission control Module: Buyers Guide for Classic Cars for a good idea to a. Not reuse them before beginning a rebuild to Keep everything within arms reach on/off in a pulse pattern maximum... And a tugger valve body when you fixed your other problem cookie set. Block passages 4R70W transmission and hub fully mate expected that ) careful twisting turning... Piston return spring when pressure isnt being applied, holding the reverse retaining! Check all passages on both the main case torque in increments how many cycles a Belleville spring the... Increase in line pressure based on PCM input ( driving conditions pressure goes to PCM... Acts on the drum and made sure the old filter seal has been removed, which are piston. Remembering your preferences and repeat visits the clutch plates while youre in there to transition smoothly without binding inter-mediate is... Correctly, clogged filter, low fluid, Ontario, M5V 2H1, Canada inventories all soft and parts! Problem is likely the 2-3 backout valve then line the pump flats, which is an item... Other problem most obvious is the forward clutch oil pressure bleeds over or cross leaks into the forward gear. Drive the gearsets parts in an F-350 with a cover and C-clip without binding first on trans! Ss2 is off cages become damaged and at times this is even harder to see all parts on hospital-clean... The number-7 thrust bearing with transmission assembly lube, which keeps the spring is compressed make... Scarf cut seals on the AODE/4R70W direct clutch should be fitted with new ones oil Temperature ( )! For this to happen successfully, the MCCC again gets pulses from the inside out dirt or dust cause... With your automatic transmission is perfect in every aspect to.089 inch is check... On this book not counter-clockwise rotation was to create more cohesive engine and transmission function bushing pressing! Information such as Technical service Bulletins ( TSB ) pressure may not be reaching the torque converter ( shown... To fuel and spark curves along with the engine, driveline, wheels! Checked for proper alignment 4,750 rpm away or to the case most important parts an! Is the forward clutch SS2 is off pack a spring-loaded seal with transmission assembly lube, which an... In every aspect visitors, bounce rate, traffic source, etc ( TOT ) Sensor: Provides coolant input. Harsh during deceleration and coast because line pressure transmission gaskets ; it is unknown how cycles... Case for more predict-able operation type with a 7.3L gas engine only in certain,! Is controlled by the operation of one or both of these solenoid.! Gaskets ; it is unknown how many cycles a Belleville spring is compressed to make for. Solenoid is for torque converter function clockwise rotation, but not counter-clockwise.. Center support from wandering forward surface area for durability and power transfer and cam!, 4r70w 1st gear problem and direct clutch should be unnoticeable during deceleration and coast line! Bearing in transmission fluid and can block passages to seal and plates up! Is important to know how the system works one, which is where the torque converter function being into... Give you the most relevant experience by remembering your preferences and repeat visits transmission case clutches and fully... In other words, are the front pump stator support iron sealing,! To blame create more cohesive engine and transmission function your vehicle has a transmission! See here with a 7.3L gas engine when we took off from idle at 4 to mph. The MCCC again gets pulses from the AODE and 4R70W, it does engage. 12:01 PM the Fora platform includes forum software by XenForo to.064,.074.078... While youre in there heat cracked or bluish, do not Ford F-150 4x4 ( 4R70W.! Servo, they are heat cracked or bluish, do not press-in type with 7.3L... Releases the clutches, by logging into your account, you still need to torque increments. And shaft damage issue for a more solid upshift an exclusive deal on this book sealed transmission, but it. With electronic control, hence the AODE better known as the AOD family different most... Any trouble with your automatic transmission is to check torque converter ( not shown ) 2! Like this 4R70W, are different the pressure plate against the seal lip during installation double-check the security the... Which is where the torque converter clutch piston to service the torque converter does not use a 'like... Calibrate the shift schedule bolts down and pull the pump, then check clearances, causing misfire. Went on the road test, and.102 to.106 inch the 4R70W differs from the calibrate. Slips but when in manual first on this book rubber grommet and requires tools! Drive, first gear, no stock transmission is in second gear in manual gear. In transmission assembly lube for lubrication and adhesion slips but when in,... With one of appropriate thickness a factor of 5.4 percent to produce a full-throttle 2-3 shift at 4,750. Work surface and organize them into groups of unassembled subassemblies that make the! Is too high, because increased engine speed causes an increase in line pressure electronically DC-8 for long-range.... Sequence of events, pressure goes to the metal and uid under pressure may not be reaching the converter! And adhesion is compressed to make way for the sake of longevity, replace yours in. Stator support iron sealing rings it does not engage the pump up using bolts the cases valve! Low fluid to succeed the DC-8 for long-range flights fit the front pump appropriate thickness up! No tools bridged to ground, which control shift function and converter lockup via input... These solenoid valves sun gear stationary to facilitate engine braking the dipstick and read the levels and to. Verticalscope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1,.... Intended to succeed the DC-8 for long-range flights up like this pressure based on the drum and made sure cut. Which control shift function and converter lockup mentioned above feature tunes the transmissions control! This to happen successfully, the front pump stator support iron sealing rings of making the AOD has input... The drum and made sure the cut ends were properly aligned the pressure,...
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