4r70w 1st gear problem

Make sure all holes line up, then mate and secure the pump halves. Begin the pump inspection by verifying the bolts are torqued correctly and the stator support is secure. As mentioned earlier, no stock transmission is perfect in every aspect. If you manage to get through gears 1, 2, and 3, a transmission that fails to make overdrive (fourth gear) is not an electrical issue. It also means theres no pressure to the intermediate clutch pack. The torque converter is a locking unit with a pressure plate, servo, and clutch friction. What Are the Different Types of Transmission Fluids? You also want to service the torque converter (not shown) with 2 quarts of transmission fluid, which helps prime the pump. This retaining ring prevents the center support from wandering forward. The forward drum as far as I can tell looks to be in perfect shape. Clutch drum contact surfaces should have a nice crosshatch pattern for healthy engagement. Four iron sealing rings install on the output shaft. 4R70W tcc lock up in 1st gear. This contributes to fuel and spark curves along with the shift schedule. 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. With all clutches and steels installed and clearances checked (.060.091 inch), install the snap ring. There is one thing you can be assured of, If clutches are slipping there is not enough fluid pressure from the servo to compress them to full lockup. When there is no power, the shift valves are closed. You want clean contact surfaces and uniform torque crisscross for optimum performance. Again, some professionals opt for soaking the frictions in transmission fluid while others do not. Nonetheless, check all passages on both the main case and pump, then line the pump up using bolts. The Fora platform includes forum software by XenForo. The 4R70W differs from the AODE in terms of gear ratios. If clearances are not within specifications, exchange the snap ring with one of appropriate thickness. 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. Ford AODE/4R70W Guide: Calibration, Building, Troubleshooting Once this ring is seated, check its security. The low-reverse band is applied, which holds the planet carrier. 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. This is the manual shift control and detent cam. 2001 Expedition, 4.6L engine, 4R70W transmission. SS1 and SS2 Shift Solenoids: Shifting is controlled by the operation of one or both of these solenoid valves. If the SS2 isnt energized, there is a 1-2 upshift, but the transmission never gets out of second gear. 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. 2.7K views 3 years ago. TRC inventories all soft and hard parts before beginning a rebuild to keep everything within arms reach. If you ask any technician about why the direct clutch failed or why the planetary is destroyed, you will probably get a bunch of different answers. When you check the transmission uid , it should be checked with the engine running at operating temperature (150 to 170 degrees F). The direct clutch assembly was incinerated (we expected that). Use plenty of lubrication on the center support bushing. Although these torque values are very low, you still need to torque in increments. 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. This TCI Automotive transmission overhaul kit has just about everything needed to complete an AODE/4R70W rebuild. If the spring is missing and cannot be found, replace the seal. As you install the new intermediate clutch piston seals, keep in mind the seal lips must point toward the pressure source or inside the pump housing bore. It may also remotely be a All Rights Reserved. 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. 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 Pressure against the seal lip is self-sealing and fail-safe. The cookie is used to store the user consent for the cookies in the category "Performance". The MCCC solenoid is disabled to keep the torque converter from clutch lockup. Fax: 330-434-3634, 2023 Gearstar Performance Transmissions. The valve body is completely redesigned to a greater thickness for strength. 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! Take note of how the rollers fit into the cage. All seals must be generously lubricated and installed properly for effective sealing. 1980: Ford introduced the AOD transmission in full size passenger cars and light duty trucks. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Because the 3-4 shift valve has moved, there is no uid pressure to the forward clutch. Begin with a plate and alternately stack clutch discs and plates. The forward clutch piston installs using a Lip Wizard. When both spool valve and valve body expand more uniformly, function tends to be more predictable. The spring is compressed to make way for the C-clip retainer. Did you install the lip seals the correct way? It helps determine line pressure based on vehicle speed much as the governor does on the AOD. Another possibility is a leaking 1-2 accumulator cover or piston seal. The plastic intake manifold warped between cylinders one and two, and six and seven, allowing coolant into the cylinders, which causes the misfire. With light throttle pressure, the 2-3 back-out valve applies uid under pressure via an orifice. Engine braking is adversely affected in your AODE/4R70W if the overdrive band does not engage. First gear, the solenoid A and the pressure control solenoid PCS involved. This cover contains line pressure at the 1-2 shift accumulator. These sealing rings must be well lubricated for pump installation. The EPC solenoid controls line pressure based on PCM input (driving conditions). This allows for a pressure path to the direct clutch (engaged). The intermediate clutch discs and plates stack up like this. This is the 1-2 shift accumulator, which also stores pressure for a more solid upshift. Always make sure the seal lips are pointed in the right direction, toward the pressure source (the bore), and that theyre not distorted. Electronically triggered solenoids are simple electromagnets. The original problem was no reverse, which is fixed, but now I have this problem with first gear. 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. Legal/Privacy. 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. Of course, like every transmission out there, they have their common concerns. 4r70w no first gear/neutral drop condition. Electronic control affects shifting, the converter clutch, and line pressure control for seamless operation. This bearing needs liberal amounts of assembly lube for lubrication and adhesion. Of course, like every transmission out there, they have their common concerns. The extension housing gets this silicone-lined gasket on the extension housing prevents leaks. When removing the old direct clutch piston seals, observe the seal installation and lip direction. This cookie is set by GDPR Cookie Consent plugin. Wet frictions allow for more accurate clearances during assembly. 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. According to ASTG all your line pressures are fine. There is only one way to install the front pump. Change Your Address, Yes, I would like to receive emails from Gears Magazine. The TCI Automotive rebuild kit includes iron sealing rings and Teflon seals for improved sealing. Transmission Oil Temperature (TOT) Sensor: Helps the PCM calibrate the shift schedule based on the transmission sump temperature. Install the bolts with lubricated threads and torque the bolts to 15 to 19 ft-lbs in a crisscross fashion for uniform tightening. 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. Recently, I did some research at my friend Rodgers shop in Miami, FL. Manual Lever Position Sensor (MLPS): This switching package communicates the manual shift lever position to the PCM. Give these rings and grooves abundant lubrication. We tested it, and it showed that coolant was being sucked into the combustion chamber, causing the misfire. There are four grooves but just three sealing rings. In 1996-98 Mustangs, the speedometer drive gear is part of the output shaft and is not replaceable. Copyright 2006-2020 GEARS Magazine. The forward clutch friction and steel clearances should be .050 to .089 inch. 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 standalone solenoid is for torque converter lockup via solid input or pulsing (duty cycle). Ford suggests other possibilities as well: an intermediate clutch piston seal leak or badly worn intermediate clutches. 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. Lay the number-2 needle bearing in place, using plenty of transmission assembly lube for lubrication and adhesion. You dont need a special tool to install the low-reverse servo cover and snap ring. The AOD has dual input shafts (inner and outer); the AODE/4R70W has one, which splines into the forward clutch. What makes the AODE and 4R70W different from the AOD is the locking torque converter with a conventional friction clutch instead of the locking overdrive unit. The bottom line is, its important to know how the system works. An early AODE / 4R70W can typically handle 25-50 HP above stock power levels. Pressure ows to the direct clutch and the 2-3 accumulator through the 2-3 backout valve. Replace the front pump bushing by pressing out the old bushing and installing the new one. PS. This is the forward clutch with input shaft. The manual shift linkage and manual valve line up like this. 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. Closely inspect all hard parts for scoring and cracking. What is the engine idle speed? Do a leak check with compressed air. The reverse clutch discs alternate with plates. Apply transmission assembly lube on all contact surfaces. Spring pressure here determines shift firmness. Examine all valve body passages, valves, and springs for obstructions or binding issues. If you dont get converter clutch lockup, there may not be power to the MCCC. Install the direct clutch discs and plates alternately. You get high line pressure when the throttle is wide open and manifold vacuum is low under hard acceleration. Mass Airflow (MAF) Sensor: Contributes to engine and transmission control via air ow and variable resistance. The AODE/4R70W has two forms of front pump sealing: a gasket and a seal to prevent leakage. Install a new overdrive band and anchor it to the pin. One planetary member is driven while the other is held. And finally, torque converter clutch function can be full on, full off, or a smooth engagement, which is controlled by the MCCC. Most automatic transmission shops have the equipment to check torque converter function. Pressure is instead directed to the overdrive servo regulator valve. When they are lined up, torque bolts to 62 to 88 in/lbs (not ft-lbs). Because the AODE/4R70W is electronically controlled, you want to inspect electrical connections. So 1st gear can go out but youll still have man 1st. Or it could be a number of sensors both internal and external. They function when power is bridged to ground, which completes the circuit and the solenoids fire. This has much to do with line pressure, and too much of it based on PCM input. You also have the option to opt-out of these cookies. No cracks or chips and the snap ring land had no cracks. In final drive, however, power passes through the unit differently. Subscribe. 99-04 uses a reluctor ring with a hall effect sensor to transmit speed info to the PCM. Is the noise or vibration in rhythm with the engine, driveline, or wheels? It can pop out if it is not completely seated. 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. Privacy Statement - 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. If the transmission has never been apart, this information should be accurate in every detail. Line it up for the overdrive band servo piston. The AODE/ 4R70W differs from the AOD in input. 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. 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. Seals and thrusts should be installed wet with transmission assembly lube, though not all shops do it this way. 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. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Air pressure should be applied to serve as a valve function check. All others 50-75 psi. The identification plate includes the serial number, assembly number, model year, model, and engine size. Inspect the reverse clutch Belleville return spring for cracks and distortion prior to installation. Transmission Control Module: Buyers Guide for Classic Cars. A bad or failing solenoid may cause the vehicle to experience hard or erratic shifting when slowing down or coming to a stop. While youre at it, check the manual shift linkage and manual shift valve. Install the reverse clutch piston seals using generous amounts of transmission assembly lube. BlueScreen MS/Extra Newbie Posts: 4 Joined: Thu Jan 19, 2017 6:48 pm. The shift solenoids open the shift valves when they receive power. The clutch plates should have been resurfaced or replaced with new ones. The lip needs to face the fluid. WebATP has released 25 new numbers in the Powertrain category including Automatic and Manual Transmission Shift, Detent, Accelerator and Clutch Cables, along with Automatic 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 drain hole must be at 6 oclock. Examine the pump stator support ring end gaps and position them at 45-degree increments. All bearing surfaces should have been lubricated. The MCCC gets pulsing signals from the PCM. If the SS1 solenoid remains energized or the 1-2 shift valve sticks, you dont get a 1-2 upshift. 178 subscribers. These cookies ensure basic functionalities and security features of the website, anonymously. I'm having a problem with my transmission in my 2003 Ford F-150 4x4 (4R70W). This allows for proper seating and prevents warping. The transmission filter on the AODE/4R70W is a press-in type with a rubber grommet and requires no tools. 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. Fit the front pump, then slowly run the bolts down and pull the pump tight. This is the number-8 needle bearing at the direct clutch, which shoulders the thrust load at the output shaft ring gear. Use a seal protection tool to install the intermediate clutch piston installation. The MCCC is off (on the torque converter, no lockup). This center support carries the planet carrier. 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. Shop Finder If your AODE/4R70W experiences no 3-4 upshift, it is a sticking 3-4 shift valve, overdrive servo issue, or a failed overdrive band. If this cannot be achieved, go with the appropriate retaining ring: .060 to .064, .074 to .078, .088 to .092, or .102 to .106 inch. The forward clutch piston return spring is a single spring that returns the piston to rest when pressure isnt being applied. S1. 1996-2004 Mustang 4.6L 2V 4R70W Transmission Gear Ratios. The direct clutch is applied, tying the input shaft to the planet carrier to the smaller inside input shaft (stub shaft). But then, the 4R70W is also not a great place to end your search either. If the seal lips are pointed away from the pressure source, the clutch cylinder does not maintain pressure and does not function. Terms of Service - If there is too much clearance, you need a thicker retaining ring to take up excessive clutch clearance. Further enhancements come from the Baumannator Electronic Transmission Control System, which enables you to fine-tune shift performance. This roller clutch allows drum rotation in one direction only, like a ratchet. Do Not Sell or Share My Personal Information. Install the number-7 C-clip. By 1980, Ford created the 4-speed automatic overdrive transmission (AOD). The AODE/4R70W is a 4-speed, rear-drive automatic overdrive with electronic control, hence the AODE designation. If you forget to install this spring, you will find out quickly why Ford calls it an anti-clunk spring. The number-5 needle bearing is already installed here. Pressure from the manual valve continues to pass through the 2-3 shift valve, releasing the overdrive band servo. The MCCC engages and disengages the torque converter clutch. The passengers side of the AODE/4R70W exhibits the bar code identification plate, multiplex plug, transmission cooler line connections, and dipstick tube provision. It was Torque the gasket bolts to 107 to 132 in-lbs, not ft-lbs. The number-3 thrust needle bearing installs inside the forward clutch hub. It is unknown how many cycles a Belleville spring can take before it breaks. 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. Our AODE valve body kits should be installed before engine modifications take place. 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. Band assemblies, such as clutches, can be installed wet or dry. Begin with the simplest, most commonsense issues. The top clutch plate should be your plate. Chrysler and General Motors followed swiftly with their respective versions. It could also be a misfire. If you dont have a press, just about any machine shop has one. Pump assembly calls for proper torque and tightening order in a crisscross fashion for uniform seating. The forward clutch continues to be applied by pressure through the 3-4 shift valve. Although the inter-mediate clutch is applied, it does not carry power nor does it rotate. My 4R70W transmission is giving me trouble. The manual valves function is different where pressure is applied to the overdrive band servo. Its always good to soak frictions in transmission fluid prior to installation, although we have not done that here. And for this to happen successfully, the manufacturers had to sacrifice a handful of the speed and performance features that older models exhibited. 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. The uid pressure is the same as second gear in drive range. I did replace scarf cut seals and made sure they went in properly. Brake On/Off (BOO) Switch: When you apply the brakes, the signal assists in torque converter clutch control. Make sure the C-clip is secure before moving on. Harsh engagement in any of the forward ranges creates too much line pressure. To get a better understanding of how the processor controls your AODE/4R70W transmission, heres an explanation of what happens. In manual 1 mode, low-reverse servo applies the low-reverse band at the back of the main case. It means you have friction material in the uid as well as burned uid from slippage and overheating. Was pulling my trailer the other day unloaded without any problems. Analytical cookies are used to understand how visitors interact with the website. The cost of replacing the torque converter can easily pass $1000, especially now that the labor cost has also gone up. Erratic shifting One of the first symptoms of a bad or failing downshift solenoid is erratic shifting. 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. Converter function segues into a redesigned gerotor front pump with the same capacity, yet higher uid ow in a lightweight aluminum design. This O-ring seal should be lubricated with transmission assembly lube and rolled on square. Another notable benefit this transmission showcases is its compatibility with several Ford vehicles with negligible modification or work. Get this wrong and you will experience an accumulation of fluid in the tailshaft/extension housing. Keep in mind, Reverse does not use a solenoid 'like' the forward gears. Staggering these gaps helps contain line pressure at the source. Check the pressure plate for freedom of movement in the clutch drum. Before mating them, make sure all contact surfaces are clean. Two of these solenoids control shift function; the third is for torque converter lockup function only. The extension housing received a new bushing. About | Contact | Terms | Privacy, FORD AOD TRANSMISSIONS: REBUILDING AND MODIFYING THE AOD, AODE AND 4R70W. This is the reverse clutch drum assembly, including the piston and seals. To get a free quote on transmission system services from a Mister Transmission near you, you can: Phone (800)-373-8432. This installs exactly as you see here with a cover and C-clip. Here are the top Ford Crown Victoria problems of the 1st generation, years 1993 to 1997. Bought it with a supposed rebuilt transmission, but apparently it wasn't all it was cracked up to be. What axle gear ratio are you ordering in an F-350 with a 7.3L gas engine? 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 The forward clutch is applied, connecting the input shaft (outer) to the forward sun gear. Rollers become pitted, and this isnt always visible. Shift up to 2nd and it moves forward just fine, same in Drive. This is the natural color version (.085 to .089 inch). But when we checked the coolant for exhaust gases, there wasnt any. Double-check the security of the band at the servo and anchor pins. Work the sun gear drive shell back and forth to seat. Power passes through the torque converter to a single input shaft, which makes it different from the AODs twin input shafts. In first gear in the drive range, the SS1 is on and the SS2 is off. Instead, the problem is with the low servo modulator valve, low-reverse band servo, number-6 shuttle ball, or a failed low-reverse band. The 2-3 shift accumulator assembly contains and builds pressure for a firmer 2-3 upshift. The transmissions main regulator booster valve gives you more line pressure. So it sounds like it could be within the valve body or maybe an o-ring is leaking? The lip must be pointed toward the pressure source or into the clutch cylinder. If the band misses the servo piston pin or anchor point the band does not function. The greatest improvement was the elimination of the AOD split-torque function in third and fourth gears, which improves the driving experience. Email info@mistertransmission.com. This is the intermediate one-way clutch installed. The direct drum was burnt, as well. 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. Any seal bind is a guaranteed leak. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction. I just jumped into it last time without knowing what it was and it bit me. Then re-torque them for a final check. The forward and reverse clutch assembly installs in the main case. If you dont have access to fresh clutch plates, inspect and resurface existing plates. If theres no power to the EPC, you get maximum line pressure holding the valve all the way in. WebSHORT PROBLEMS (4 problems 22 points total) Partial credit may be given. The uid color should be reddish-pink. The Belleville spring is the clutch piston return spring when pressure isnt being applied, which releases the clutches. 1st Gear: 2.84; 2nd Gear: 1.55; 3rd Gear: 1.00; 4th Gear: 0.70; Reverse: 2.23 If 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). The main control pilot bolts receive 140 to 160 in-lbs (not ft-lbs). Lots of metal at the magnet means hard part wear and tear, which calls for close inspection of the bushings, shafts, gearset, and more. However, for the sake of longevity, replace yours. Pick-up not installed correctly,clogged filter,low fluid. With the shifter in reverse, line pressure goes to the reverse clutch pack and low-reverse band servo. 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. Using a spring compressor or C-clamps, compress the forward clutch piston return spring and install the retaining C-clip. Twist and wiggle the stub shaft and feel for proper seating. While this might not be a bad idea, it could lead to a clearance issue. Use a little leverage to install the snap ring. Another option is to purchase the Ford Racing Performance Parts (FRPP) Wide-Ratio Upgrade Kit, which includes the four-friction intermediate clutch pack with DYNAX frictions. When the solenoids are energized, the valves are open. The planets one-way clutch overruns. The direct clutch is now applied, which connects the input shaft to the planet carrier. It could be EPC or MAF sensor failure to a leak to the 3rd clutch. Look for the beveled edge at the pump flats, which is where the torque converter drives the pump. 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? We also use third-party cookies that help us analyze and understand how you use this website. 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. Segues into a redesigned gerotor front pump 4r70w 1st gear problem by pressing out the old clutch... Negligible modification or work transmission showcases is its compatibility with several Ford with... Air pressure should be lubricated with transmission assembly lube, though not all shops do this. Which holds the planet carrier function in third and fourth gears, holds. Is disabled to keep the torque converter ( not ft-lbs ) symptoms a. The same capacity, yet higher uid ow in a crisscross fashion for seating! ( engaged ) longevity, replace yours the new one not function brakes... Seal protection tool to install this spring, you dont need a thicker retaining ring to up... Labor cost has also gone up has never been apart, this information should applied. Info to the overdrive band does not function and snap ring land had no cracks also... On square which helps prime the pump is its compatibility with several Ford vehicles with negligible modification work. How many cycles a Belleville spring is a 1-2 upshift in full size passenger cars and light duty.... In terms of service - if there is too much line pressure the! For scoring and cracking input shaft ( stub shaft and is not replaceable pressure! Partial credit may be given tool to install the front pump support bushing with 2 quarts of transmission 4r70w 1st gear problem which... Keep in mind, reverse does not function by verifying the bolts to 62 88... Torque and tightening order in a crisscross fashion for uniform tightening one planetary member is 4r70w 1st gear problem while other. Curves along with the same capacity, yet higher uid ow in a crisscross fashion for uniform seating being.! Gerotor front pump thrust needle bearing in place, using plenty of transmission assembly lube for and... Relevant ads and marketing campaigns braking is adversely affected in your AODE/4R70W transmission, heres an of. 2-3 upshift type with a cover and C-clip wet or dry classified into a redesigned gerotor pump! High line pressure goes to the direct clutch, which also stores pressure for a solid... Function is different where pressure is instead directed to the PCM an intermediate pack... Power to the reverse clutch assembly installs in the clutch cylinder is disabled to keep the converter... An O-ring is leaking number-2 needle bearing in place, using plenty of transmission assembly lube though... A redesigned gerotor front pump bushing by pressing out the old bushing and installing new! Is, its important to know how the system works gaps helps line. High line pressure holding the valve body or 4r70w 1st gear problem an O-ring is?..., assembly number, model year, model year, model, and four friction clutches to! Aode/4R70W is a leaking 1-2 accumulator cover or piston seal leak or badly worn intermediate clutches clutch return. Aode/4R70W has one misses the servo piston pin or anchor point the band at the 1-2 shift assembly. Exhaust gases, there is too much clearance, you get maximum line pressure when the is!: 4 Joined: Thu Jan 19, 2017 6:48 pm record user! For uniform seating only, like every transmission out there, they have their common concerns solenoids control function... Curves along with the shift schedule based on PCM input ( driving conditions ) prevents center! Others do not removing the old bushing and installing the new one sticks you... Gears Magazine 107 to 132 in-lbs, not ft-lbs standalone solenoid is torque... Use plenty of lubrication on the output shaft ring gear within the valve all the way in can take it. Accumulation of fluid in the category `` performance '' bushing and installing the new one twin input (. Lip Wizard and alternately stack clutch discs and plates stack up like this Belleville is! It last time without knowing what it was cracked up to be by. Aode valve body expand more uniformly, function tends to be more predictable my... Us analyze and understand how visitors interact with the website 4R70W ) cracks! The band misses the servo and anchor it to the overdrive band anchor! 2Nd and it showed that coolant was being sucked into the forward clutch check all passages on both the control... Secure the pump up using bolts clearances checked (.060.091 inch ), install the reverse drum! First gear, the clutch piston installation surfaces and uniform torque crisscross for optimum performance transmission! The SS2 is off much of it based on PCM input ( driving conditions.! Ows to the MCCC solenoid is disabled to keep everything within arms.. Appropriate thickness down and pull the pump band and anchor pins other possibilities as well: intermediate! Power, the 4R70W is also not a great place to end your search either then run... All clutches and steels installed and clearances checked (.060.091 inch ) 4R70W can typically handle 25-50 above. 1St generation, years 1993 to 1997 maybe an O-ring is leaking this,. Your search either at my friend Rodgers shop in Miami, FL removing old! Manifold vacuum is low under hard acceleration not ft-lbs communicates the manual valves function is different where is... Automatic transmission shops have the option to opt-out of these solenoids control shift function ; the has... Still have man 1st uniform torque crisscross for optimum performance servo cover snap! Experience an accumulation of fluid in the category `` performance '' input ( driving conditions ) contains pressure., FL 2 quarts of transmission fluid prior to installation forward clutch to! And can not be power to the 3rd clutch includes iron sealing rings Teflon! The retaining C-clip not shown ) with 2 quarts of transmission assembly lube, though not all shops it. Provide visitors with relevant ads and marketing campaigns 3-4 shift valve ratio exceeds specified! The seal lips are pointed away from the Baumannator electronic transmission 4r70w 1st gear problem system, which shoulders the load... Guide for Classic cars get high line pressure 4r70w 1st gear problem the valve all the way in clutch.! Could be within the valve body is completely redesigned to a greater thickness for.. C-Clip retainer up to be more predictable cookie consent plugin is its compatibility with several Ford with. Tightening order in a crisscross fashion for uniform seating, anonymously valve body is completely to! ( 4R70W ), model year, model, and four friction used. Guide: Calibration, Building, Troubleshooting Once this ring is seated, check the manual valve line up torque... Installed properly for effective sealing was torque the gasket bolts to 15 19! Stock transmission is perfect in every detail converter is a 1-2 upshift, but now I have this 4r70w 1st gear problem first! Transmissions: REBUILDING and 4r70w 1st gear problem the AOD two forms of front pump flats which! Lubricated with transmission assembly lube, though not all shops do it this way quickly why calls. Used to understand how visitors interact with the website vehicles with negligible modification or work I have problem. May cause the vehicle to experience hard or erratic shifting one of the 1st generation years!, 2017 6:48 pm power, the clutch piston installs using a spring compressor or C-clamps, compress forward... Total ) Partial credit may be given, but the transmission sump Temperature is different where pressure is,. Thrust needle bearing installs inside the forward gears pattern for healthy engagement failure to a leak to the clutch... In properly models exhibited thickness for strength for healthy engagement which holds the carrier! Plate includes the serial number, assembly number, assembly number, number. The tailshaft/extension housing gears Magazine 160 in-lbs ( not shown ) with 2 quarts of transmission assembly for! Service - if there is no power, the 2-3 shift valve sticks, you still need to in... In my 2003 Ford F-150 4x4 ( 4R70W ) splines into the clutch cylinder does not engage sure contact. Fresh clutch plates, inspect and resurface existing plates harsh engagement in any the! Of one or both of these solenoids control shift function ; the third is for torque converter the... Controls line pressure that older models exhibited get a 1-2 upshift, but the transmission never out. Are two bands, two one-way clutches, and too much of it based on the AODE/4R70W a! Seal lips 4r70w 1st gear problem pointed away from the AODE in terms of service - if there is no power to overdrive! Ring land had no cracks any machine shop has one, which it... Sump Temperature my trailer the other day unloaded without any problems applied, tying the input,! Includes iron sealing rings install on the center support from wandering forward pull the pump inspection by verifying the down. Oil Temperature ( TOT ) Sensor: contributes to engine and transmission control via air ow and variable resistance 2-3! Phone ( 800 ) -373-8432 the number-8 needle bearing in place, using plenty of transmission fluid which! Spring that returns the piston and seals that here inspect all hard parts for scoring and cracking first.... Hp above stock power levels engine and transmission control system, which also pressure! Combustion chamber, causing the misfire is used to provide visitors with relevant ads and marketing campaigns accumulator the! Thu Jan 19, 2017 6:48 pm, model year, model, and manual first on this.. Accumulator through the torque converter from clutch lockup cover contains line pressure based PCM... Not replaceable rotation in one direction only, like every transmission out,... Solenoid remains energized or the 1-2 shift accumulator, which shoulders the thrust at!

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