While the 4L60E is a standard transmission used in rear wheel vehicles manufactured after 1993, the 4L80E is typically limited to diesel and big block vehicles. this is a computer. It is the substance used to make car engines run smoothly. If the splines are split then the unit has a dual element stator. In 1997 they went to a deeper transmission oil pan so make sure that the filter you have has the big 'dimples' (see photo below) which rest on the bottom. Slips out of overdrive once warm and converter will not lock up at anytime. Then it would start to slip in Overdrive. I am going to be changing the transmission fluid out at 60,000 miles because I do a lot of towing. transmissioncenter. Specifically designed to replace the factory bolt on yoke for T-400, 4L80, 4L85 Truck Transmissions with the Threaded Hole in the center of the Output shaft. The 4l80e driveshaft is longer than the 4l60e and this has to be considered when doing your swap. CedarValleyMotorSports. Industry Leading Steel Slip Yokes Sonnax takes slip yokes to a new level by offering the industry's first affordable, high-quality performance steel slip yokes - a winning combination you won't find anywhere else!. Certified Transmission offers the following resource for those interested in knowing vehicle applications for the remanufactured 4L60E transmission. The Automatic Transmission Speed Sensor is positioned on the wheel hubs and measures the speed of rotation of the tire. Check out free battery charging and engine diagnostic testing while you are in store. Chevrolet Silverado automatic transmission parts from AutoZone bring back that smooth power transfer you need when you are digging in and working hard. two problems with the 4l80e one could be line pressure, the other the 80e has a fail safe that wont let the trans shift to reverse if it senses a speed of greater than 8mph. Get a great deal on GM 4L80-E Performance Transmission Pkg for GM SB / BB Motors (Up to 500 lb-ft of Torque) at BowlerTransmissions. Driving without problems for 8 years a 3500 K dually 6. But, GM had been in transmission limbo, so to speak, needing a modern transmission to fill the duty gap between the excellently versatile 4L60E (and its tougher 4L65 & 4L70 variants) and the Allison transmissions. The reduction in clutch slip may. The 4L80E and 4L85E was rated to max GVWR of 18,000 (Axle and vehicle dependent). The difference between stator design, look inside the converter at the larges set of splines (stator shaft splines). Slipping 4L80E transmission? While driving the veichle it would slip when upshifting so i put it down into third and tryed it without overdrive. If you’ve ever wondered about the typical cost for transmission repair keep reading. A transmission manipulates torque so that power is available throughout a vehicle's driving. TRANSMISSION SYSTEM TESTS (4L80-E) The 4L80-E Transmission system is equipped with a computer called the Transmission Control Module (TCM) (located left rear seat compartment; for M996A2 and M997A2 vehicles, located in the left exterior stowage compartment) which interprets, analyzes and records electronic signals form sensors and switches. Designed for longitudinal engine configurations, the series included 4 forward gears. The gearing to move such a heavy load is a 2. It should be drained and refilled at least once every two years. Very strange, maybe a bushing spun and blocked return flow. The 4L80E transmission is the advanced progeny of the legendary TurboHydramatic TH400 automatic transmission, and is based heavily on the 400 in both parts and strength, yet featuring an added overdrive gear, a lock-up torque converter and advanced electronic controls. Have you ever looked under your car and found that it was leaking some sort of fluid that you didn’t even know your car had in it? Most of us know engine oil is brown or black, coolant is usually green, but you usually don’t see a red fluid. Introduced alongside the original 4L60 in the early 90’s the 4L80E was designed for large trucks and is designed as a heavy duty unit, rather than a transmission for smaller cars or even some pickups. Your mechanic can perform a computer analysis that will reveal the problems that can be. Was not slipping before service, now it is after having the 50k done. Receive a price quote in minutes for your used engines, used transmission, and other used auto parts, from top-rated junk-yards, salvage yards, and automative recycling centers. The 4L80E is the descendant of the “Ole Reliable” TH400 transmission. You must be logged in to post a review. What your problem sounds like is a slipping set of clutches. The stock flexplate has only 3 mounting holes, and the 4L80E requires 6. Slipping in second is the most common failure of 4L80E. I bought a 1996 Suburban 2500 4x4, with the 454 and 4l80e about a year ago with 113k miles on it. Find Yokes with 4L80E Transmission Type and Transmission Yoke Location and get Free Shipping on Orders Over $99 at Summit Racing! Slip Yoke, 32-spline, Steel. It shares many components and design features. 4L80E, Sonnax Reverse Servo Spacer Kit. Shift adapt strategies have been common for well over a decade now. Too low, and your transmission will miss shifts and feel like it's slipping. of torque, giving it a max load capacity of 18,000 pounds. The GM 5L40-E transmission is very common in cars of a certain age and, as those cars continue to age, more and more of them are finding themselves in the shop for transmission faults. There is no cause for panic though, as this can be avoided by checking for signs which signal transmission slipping, and understanding the possible causes behind it. 4L80E is a TH400 with the OD added and electronic control. ECM reprogramming required for proper operation. One of the things I'm going to do is replace the current leaking SP400 with a 4L80E out of a 1-ton van I bought some years ago. Hummer Remanufactured Transmissions. My car was smooth like silk a month back the only problem I had was I had to give a bit more gas on inclined plane. My 2000 suburban tends to shift hard between 3rd and 4th gear when the transmission is warm. Oh yeah I have a 97 gmc k2500 350 4l80e My 94 gmc sierra k1500 speedometer was acting up,brake light came on and it wouldnt shift into 3rd or od without slipping. This is why GM went to the Allison. I'm trying to find out if this could be a simple fix solinoid etc? All other gears shift great and strong except reverse you almost don't notice it unless your backing up a hill. This bulletin will help to determine if the DTC is caused by the TCC system or by a slipping internal transmission component such as a clutch or band. When it tried to shift into 3rd it made a loud grinding noise and i had to let off of the gas for it to engage. This OEM 4L80E output shaft for 2WD vehicles has a 5'' spline and has been cleaned and inspcted to ensure it is 100% ready to be used in your 4L80E rebuild!. has all four gears but no lockup Has code Po894 slipping components will turn on chek engine light after a while. Great torque converter for a DD performance vehicle. pdf / Download & Read. 75 overdrive sixth, bringing the first four gear. 4l80e transmission shifting problem, very hard shifting after exteneded periods of driving. The J1 cable diagnostics checks (page 2-428) must be performed. The pressures were a little low in reverse and while driving forward. 4L80E 2nd & 3rd gear only I've got a 16,500lb motorhome with a '95 Chevrolet P32 chassis, 454 TBI and the 4L80E trans with 50K miles (purchased with 38K). If you want to try an additive try one of the Lube Gard products, but don't count on a fix in a bottle. When a unit is failing, the PCM/TCM will be constantly trying to compensate for the slipping or harsh shifts produced by internal unit failure. At GotTransmissions. Worse case is. Common problems are: Check engine light comes on. 1-866-612-9798. not temp related. The 4L60E is probably the single most popular automatic transmission currently in use by American consumers. 4L60 Turbo 700. 4L80 was usually reserved for such things. GM 4L80E technical information The 4L80E transmission is a four speed automatic with torque converter clutch. As I gave it a bit of throttle, I felt it slip and it dropped down to 3rd gear. The 3 Most Common Problems With The 4L60E Transmission. When the PCM senses this fault, it goes into a fail-safe mode (not limp) where it increases line pressure to maximum, making sure everything is lubricated so it doesn’t break. Also I was told I could only use a tranny From a 98 or 99 whY's the reason. A 400 will work but a 4L80 will take the power and he can control it with whatever ECM he uses for the LS motor. I got a tranny that is acting like a stick with a bad clutch but only after it warms up? i got codes 85(undefined ratio), 86(low ratio0 and 87(high ratio) I'll check tomorrow to see if there are any more. Lucas can be useful in freeing up any worn transmission valve body solenoids. Get back on the road!. ) Install the new filter. This is because the torque converter, which is a fluid drive, allows this effect, which is perceived as 'slipping'. The 4L80E has a max torque rating of 440 lb. The 4L80E Transmission is a fully computer controlled transmission that comes bolted to the higher horsepower and torque trucks. You cant go wrong with either one. Here at The Automatic Gearbox Company we pride ourselves with knowing that we are the premier automatic transmission specialists in the Manchester area. Shop 4L80E Transmissions parts and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. 50-15 slicks. This comes at the expense of a shallower first gear, however, which hurts low end acceleration. Once I did that now it shifts like a new truck. 4l80e transmission electrical problems C/K Car Forums. 273 DIAMETER SHAFT GM Chevrolet Chevy 4L80E 4L85E Transmission Parts. Get the best deal for General Motors Complete Car & Truck Automatic Transmissions from the largest online selection at eBay. Transmission slipping, or gears slipping, is a common transmission problem and a real cause for concern. Receive a price quote in minutes for your used engines, used transmission, and other used auto parts, from top-rated junk-yards, salvage yards, and automative recycling centers. It is possible to remedy a fluid problem by removing the checkball from its cage in the case in the rear of the trans may help (must remove valvebody), or adding a high-viscosity additive such as Lucas. i don't know what kind of scanner you have but there should be a pid where you can watch converter slip in real time. I noticed a new drip under the truck, today, and took a dive into it. As I drove down the street the engine roared like it was slipping but shifted all gears. So keep an eye on this plug make sure there's no fluid leaking around it. The PCM sees a difference between input and output speed and the calculation indicates a slip. This page provides information on how the 4L80E automatic transmission from General Motors operates with the MegaShift™ controller, as well as the TunerStudioMS settings needed to configure the controller. Therefore, more pressure equals a more harsh feel and solid lockup, less equals a softer engagement and a smooth feel. No Core Charge. the only problem i get is the abs doesnt kick on as quick when i hard brake in wet conditions. View all photos of GM 4L80E Series Transmission Basics - The Smart Tranny at. Help me out because im a little confused. Ok, the Vehicle is a 1999 Chevy 3500 HD. 4L60 (700-R4) Diagnosis Fundamentals. It should be a BW4401 slip yoke. I am assuming that this truck has the 4L80-E transmission. The BD-Power 1030607 Universal Transmission Cooler Electric Fan can be used as a pusher, or puller fan in your universal application. Adding Fluid did not fix the problem. This leaves you driving around a car or truck that screams down the road. You should start by adding the recommended transmission fluid through the dipstick tube until your transmission level is at the "full" mark with the car running in park. This wide selection of parts are used in the GM 4L80E automatic transmission in GM C and K series pickups, Chevy vans including the express, Suburbans, School Bus, Motor Home, GMC Sierra and Savan's. If there's ATF in the bottom of the housing, you have been infected. 6L80E Camaro or 4WD Truck to 2WD Slip Yoke Transmission, Conversion Kit. Make sure check it with the motor running hot and in park/neutral,and not with the engine off. ATRA Bulletin #473. 6l80etuning. What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code and applies to many OBD-II vehicles (1996-newer). The reduction in clutch slip may. 4L60 Turbo 700. Transmission is finally trashed after towing about 25000 miles at max tow capacity. At GotTransmissions. The most recently reported issues are listed below. Like an engine, a transmission needs to maintain the proper fluid pressure. If you have a 454 motor the #7 torque converter that comes with the level 2 TH400 will require a dual bolt pattern flywheel. In this article, we'll work our way through an automatic transmission. Over all though the 4l60 is a good tranny. I suppose I could do a detailed write-up, although I doubt many would find that very effective. It is possible to remedy a fluid problem by removing the checkball from its cage in the case in the rear of the trans may help (must remove valvebody), or adding a high-viscosity additive such as Lucas. Code P0894 stands for Transmission Component Slipping. It slips in all gears and will sometimes take a while to shift, but it shifts into all gears before 3500 rpms, and reverse always works. The 4L65e transmission that usually sits behind the LQ9 in its truck applications is not the best suited for this job. I have a 4l80E and having trouble with the converter not staying locked up while at cruising speeds (70 to 80 mph). 2 and the DD 8. Have Peace Of Mind, knowing that your new 4L80E Transmission has all the Updates developed by General Motors Engineers combined with the Latest Industry Advancements providing Unparalleled OE Strength and Durability. The TH700R4 was renamed "4L60" (RPO MD8) following the new General Motors naming convention, when the electronic version, 4L60E (RPO M30), was phased in. Diesel Place : Chevrolet and GMC Diesel Truck Forums > GM Transmissions > 4L80/85E Transmissions. Southern Performance Systems offers a 6L80E Transmission Package that includes: 6L80E Transmission - Factory Take-Out (Extremely Low Mileage) 2,400 RPM Torque Converter. These transmissions mate a three-element turbine torque converter to a Simpson planetary geartrain, providing three forward speeds plus reverse. View and Download Chevrolet 2007 Silverado 1500 Pickup owner's manual online. I know the shifter is going to the reverse position correctly as the reverse lights come on. If you have an automatic transmission and it "slips" while you are driving it—that is, the car engine revs without the power going to the wheels—the most common cause (though not the only possible cause) is low transmission fluid. Don't sweat it. It is the substance used to make car engines run smoothly. The draw backs to this "smooth feel" however is that the lockup clutch is literally slipping into place as opposed to solidly applying itself. A vehicle with a slipping one-way torque converter clutch will experience a 20 to 30% decreased fuel economy. I think my 2003 Tahoe's Tranny is slipping. We only use the highest quality parts in our transmission rebuild kit! 700R4/4L60E/4L65E - Overhaul Rebuild Kits. We are now featuring the 4L80E transmission for sale with a huge list of upgrades. What a great find, Glenn and his crew have always been very customer service orientated, something you do not find much today. PATC builds GM performance transmissions in many levels. Posted by Regis on Monday, April 29th, 2013. This converter will have great street manners and only flash high when you want it. While the 4L60E is a standard transmission used in rear wheel vehicles manufactured after 1993, the 4L80E is typically limited to diesel and big block vehicles. It applies to all BMW, Jaguar, Bentley, Rolls Royce, Maserati, Audi and others with ZF 6HP26, 6HP19, 6HP28 In this post i will be explaining why you have transmission issues like: -harsh shift 2-1 -not able to shift into park when hot -weak torque feeling -gear speed ratio faults -other faults All. But while the 4L80E is a strong, heavy-duty transmission, during the first few years of production the 4L80E was not as durable as its design permitted due mainly to faulty parts. The 4L80E Transmission is a fully computer controlled transmission that comes bolted to the higher horsepower and torque trucks. When it tried to shift into 3rd it made a loud grinding noise and i had to let off of the gas for it to engage. Subject: Diagnostic Information on Diagnostic Trouble Code (DTC) P0894 and P1870 Models: 2002-2007 GM Passenger Cars with 4L60-E, 4L65-E or 4L70-E Automatic Transmission (RPOs M30, M32 or M70) Diagnostic trouble codes (DTC) P0894 and P1870, Transmission Component Slipping, may have different root causes. The most recently reported issues are listed below. Mods are in sig - car makes about 500 rwhp. When it is in drive in forward gears, it works fine, whereas if it is in reverse, it starts slipping. From what you just said, my transmission does the same. If the slipping is caused by low fluid, it will get worse as the transmission gets hotter. At first, they were used mainly for fuel economy and emissions control, but within a couple of years, many more parts were operated by the computer such as handling, climate control, airbags, and anti-lock braking. The 4L80E and 4L85E was rated to max GVWR of 18,000 (Axle and vehicle dependent). Get a great deal on GM 4L80-E Performance Transmission Pkg (Up to 650 lb-ft of Torque) at BowlerTransmissions. The stock flexplate has only 3 mounting holes, and the 4L80E requires 6. GM 6-Speed 6L80 MYC Hydra-Matic Automatic Transmission. This OEM 4L80E output shaft for 2WD vehicles has a 5'' spline and has been cleaned and inspcted to ensure it is 100% ready to be used in your 4L80E rebuild!. Used Engines & Transmission Catalog. Used Transmissions. “If you were looking to swap in a 4L60 or a 4L80 into a 5th gen you would need a new stand-alone computer to get the trans to function properly, since the 6L80E uses an ‘inboard controller,’ meaning the computer is inside the transmission and the car only sends the operating parameter signals (throttle position, road speed) to the trans. The 4L60E is probably the single most popular automatic transmission currently in use by American consumers. It is the overdrive successor It is significantly larger than the 4L60E and if you compare the cases side by side it makes the smaller transmission look tiny. No previous signs of slippage, hesitation, stalling or lack of power whatsoever. It was an evolution of the Turbo-Hydramatic 400, first produced in October 1963. Holley® has been the undisputed leader in fuel systems for over 100 years. Transmission Component Slipping. 4l80E slipping? I own a 1994 GMC 2500HD 6. I then checked the wiring from the computer plug to the trans plug and input sensor and they all rang out for continuity. When I bought it a week ago it would go into both when the trans got to 175 then it would go out. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon. When ordering a 4WD TH400 transmission we need to know how far the output shaft sticks out past the case. How a torque converter lockup works. Due to a design change in 1996, the reverse servo commonly breaks because it is stressed more than early. One went at 150k, the other at 300k (and i abused it). I have a 4l80E and having trouble with the converter not staying locked up while at cruising speeds (70 to 80 mph). This is a must for high HP, heavy abuse applications, but is definitely recommended if you just want to increase the life or durability of any transmission. PATC is on the cutting edge of performance rear wheel drive American transmission development. Is the slip yoke for a 4L80E the same as a slip yoke for a TH400?. They eventually returned his money but it was a huge ordeal. Auto / Car / Automobile parts and accessories ALL cars ALL parts. My truck only had 110K with most of it pulling 9K pound trailer around the country !. When it is in drive in forward gears, it works fine, whereas if it is in reverse, it starts slipping. Similar to what we've just covered, the new strategy allows for the converter clutch to begin slipping as early as 2nd gear and to continue slipping until a cruising speed of approximately 54 mph has been reached. I dropped the pan this morning and there was some sludge on the pan. 3 and will eventually have a turbo or 2. Help me out because im a little confused. I assume its the TO going amuck. What would cause a 4L80E trans in a 94 Chev c2500 to fall out of high gear It isn't slipping? If it isn't slipping it is downshifting to 3rd gear What auto trans in 91 3500 Chevy?. This is a computer controlled transmission first introduced in G. The GM 4L60E/65E/70E-4L80E/85E Diagnostic Code Book is designed to provide the technician with a step by step diagnostic approach to each and every transmission code available from 1991 to the 2007 model year. 0 liter gas engines after model year 2000 trucks. One the truck shifts into 4th (OD) it basically goes to neutral. Very strange, maybe a bushing spun and blocked return flow. If switching from a 4L60E to a 4L80E transmission, this is the adapter harness needed for correct operation of the new transmission. It slips in all gears and will sometimes take a while to shift, but it shifts into all gears before 3500 rpms, and reverse always works. I have a 2011 4Runner Trail Edition. The first symptom was ever now and then when the tranny would downshift to pass on the freeway it wouldn't go back to O/D. Automatic Transmission - LS V8 Automatic Transmissions, 4L60E, 4L80E, TH350, TH400, TH2004R, Powerglide, Converters, and Shift Kits discussion, how-to guides, and. Going that high in rpm sounds dangerous. It has the original trans with a secondary stacked plate cooler added. php? 42899-4l60e-rebuild-manual-schematics-and- atsg gm 700r4 atsg-transmission-repair-manual-for-4l60-hsdhmwj. Hummer Remanufactured Transmissions. Southern Performance Systems offers a 6L80E Transmission Package that includes: 6L80E Transmission - Factory Take-Out (Extremely Low Mileage) 2,400 RPM Torque Converter. With the average age of a used car now approaching 11 years, there are millions of them still in use. Sonnax Transmission parts for GM 4L80-E applications. An Easier Way to Rebuild Planets. not temp related. There is a band that clamps down in 1st and reverse. My husband has a 1992 chevy k2500 with a 4l80e automatic transmission. Last night my 4L80e lost overdrive with absolutely no warning. This code can mean either an internal transmission component is slipping, or the torque converter is slipping. An automatic transmission is a hydraulic pressure driven system that can make different noises than manual transmission problems. To get the stock controller to shift the 80 you can make your own adapter out of radio shack parts, there is a sticky for this, or order the harness adapter from pcmforless and have them, or anyone with efilive, not hptuners, tune out the 2 fault codes that will prevent shifting. 75 overdrive. Review (mpn:4l80-e for sale) Slip 2wd 4l80- Yoke Transmission 4l80-e 4l80e transmission slip yoke 2wd off a 2003 gmc 2500 2wd 5 inches outside inside spline. I guess the 4L80 was known for having TC issues. My scanner is a OTC genisys with relatively new software. Including a Large Selection of New, Used and Surplus Engines for Sale. It has the original trans with a secondary stacked plate cooler added. If the slipping is caused by low fluid, it will get worse as the transmission gets hotter. The speedometer works… and I can drive around in 1st or 2nd gear with absolutely no slipping at all. Find Yokes with 4L80E Transmission Type and Transmission Yoke Location and get Free Shipping on Orders Over $99 at Summit Racing! Slip Yoke, 32-spline, Steel. transmissions and transfer cases for your car, truck, or SUV. The draw backs to this "smooth feel" however is that the lockup clutch is literally slipping into place as opposed to solidly applying itself. The slipping and improper shifting then caused the clutches to burn in the tranny. The 4L80E is a truck automatic transmission that was introduced by GM in the early '90s. Get the best deal for General Motors Complete Car & Truck Automatic Transmissions from the largest online selection at eBay. The reverse input drum is the first thing you see as soon as you remove the pump. It contains information about New, Popular and Upgraded products. What a great find, Glenn and his crew have always been very customer service orientated, something you do not find much today. That kind of performance requires steady maintenance and a quick response to problems like slipping gears. The name only changed to better identify the transmission. The speedometer works… and I can drive around in 1st or 2nd gear with absolutely no slipping at all. The stock flexplate has only 3 mounting holes, and the 4L80E requires 6. High performance applications like towing and high torque engines can build heat in the transmission and break down fluids. Does anyone tow with a GM 4L80E or 4L85E auto? I have a 95 K2500 6. The purpose is to allow the vehicle to come to a stop, with the engine running. 5" C-E Fits 32 Spline Output Uses 534G Inside Clips 2. 4l80e transmission shifting problem, very hard shifting after exteneded periods of driving. Below is a list of the weak points in a 4L60E transmission. It shares many components and design features. Took to jerry brown Chevrolet in bufford GA, the transmission man there test drove my van with me, he hooked a test unit to see what was going on said something called staor? bushings and /or valve body, said he sees this alot in the 1997 and 1998 models. To get the stock controller to shift the 80 you can make your own adapter out of radio shack parts, there is a sticky for this, or order the harness adapter from pcmforless and have them, or anyone with efilive, not hptuners, tune out the 2 fault codes that will prevent shifting. The shift flare is the time it takes the pump to fill the accumulator volume with no clutch application because there isn't a spring ramping pressure up, and then apply pressure spikes suddenly when the volume is full and instantly jumps to line pressure. When it tried to shift into 3rd it made a loud grinding noise and i had to let off of the gas for it to engage. Diagnosing the Elusive NO REVERSE with the 4L80-E When dealing with slipping, chatter and/or individual shift failures, it is very important to see if the line. See 2004 GMC Sierra 1500 technical service bulletins (TSBs) at TrueDelta, organized by model year and problem area inoperative/slipping in 2nd, 3rd and 4th gears. I can handle getting these assemblies out and changing them, no worr. The pulsing is only at the 1st 1/2" of pedal travel. Is the latter a likely. If the one-way torque converter clutch slips, then the vehicle will characteristically have very poor acceleration. wrenchmanrepair. i put 200 miles a week on the truck. I am running a Lokar shifter and I am aware that they sell a backup light kit to go along with this shifter, but frankly it is hookey. I then checked the wiring from the computer plug to the trans plug and input sensor and they all rang out for continuity. There is a band that clamps down in 1st and reverse. 4l80e no reverse fix keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Ford F-150: How To Perform Transmission Line Pressure Test. Both the 4L60E and 4L80E are automotive transmissions built by the General Motors Company. I have a 93 one ton chevy with a 4l80e , my truck would not go into third gear or overdrive. When it is in drive in forward gears, it works fine, whereas if it is in reverse, it starts slipping. A nice durable option for everyday use. the crazy thing is the code says a component slipping but for the life of me i do not. I am going to be changing the transmission fluid out at 60,000 miles because I do a lot of towing. If you're just needing the ISS pigtail only, please call us at 765-378-4908 to order. The Sonnax Reverse Servo Spacer Kit is a simple, low cost way to add durability to the 4L80-E transmission and eliminates the need to retrofit early design reverse servo pistons into late units. Be the first to review "1330 SERIES - TRANSMISSION SLIP YOKE - TH400 LONG TAIL, 4L80, 4L80E, 241C, 246GM 32 SPLINE GM TRANSMISSION AND TRANSFER CASE SLIP YOKE - SKU#(s) 2-3-10831X, 5743957," Cancel reply. This is a 95 3500 series w/5. One of the most common (and most frustrating) problems that happens to the 4L80E is when it loses 3rd and 4th gear at the same time. This condition may also be an indication of a damaged 2-4 band or 3-4 clutches. The transmission tech told me that if that seal had not been leaking, this unit would have lasted another 100K miles (which is good news for you and your Suburban, too). Transmission slip — If TCM receives a signal that the transmission is slipping, it’ll prevent the transmission from shifting into that gear range. doc tcc pwm solenoid electrical p1860 0v to 12v this dtc detects a. TRANSMISSION SYSTEM TESTS (4L80-E) The 4L80-E Transmission system is equipped with a computer called the Transmission Control Module (TCM) (located left rear seat compartment; for M996A2 and M997A2 vehicles, located in the left exterior stowage compartment) which interprets, analyzes and records electronic signals form sensors and switches. GM 4L80E to fig 8 NP205 adapter. Also, the 4L80E transmission is typically about 4 inches longer than a TH400 (depending on the length of the extension housing), but the trans mount is located roughly 11⁄2 inches rearward. Make a long story short I drained transmission fluid, pulled cover and replaced solinoid B controls third,4th and overdrive. Full transmission repair in Houston for $1,195. I've only ever seen dirty transmission filters, typically the media has started out yellow and turned the brown/red tint of ATF. 4L60-E Mod/Upgrade Info Although there are folks who hate the 4L60 with a passion and the 4L80 is recognized as a much stronger unit, the 4L60 has gained much. Get back on the road!. Get a great deal on GM 4L80-E Performance Transmission Pkg (Up to 650 lb-ft of Torque) at BowlerTransmissions. 4L80E Automatic Transmissions in-stock with same-day shipping. There are a few things you can easily do to check it out. The Automatic Transmission Speed Sensor is positioned on the wheel hubs and measures the speed of rotation of the tire. Your mechanic can perform a computer analysis that will reveal the problems that can be. GM Authority is a must-read for GM news, GM rumors, GM reviews, and information about General Motors vehicles. com is a website designed to answer all your technical questions involved with Impala tuning, Camaro Tuning, CTS-V Tuning, Corvette Tuning, G8 Tuning, Escalade Tuning, and Truck Tuning. I removed the yoke from the 4L80E and installed the TH400 yoke into the back of the 4L80E and it fits great to include the seal marks lining up exactly. 4l80-e/4l80-ehd new oil filter and bottom pan for 1997 models 4l80-e/4l80-ehd new design 4th and overrun steel plates 4l80-e new shift solenoids for 1998 models 4l80-e codes 24 0r 72, intermittent loss of spedo 4l80-e/4l80-ehd pump identification for service 4l80-e/4l80-ehd center gear box differences on 1997-up central lube units 4l80-e/4l80. But the good news is, my 4L80 will be better than GM built it originally. If there is a problem causing it to malfunction then there are some symptoms that your car will exhibit. One went at 150k, the other at 300k (and i abused it). Does anyone tow with a GM 4L80E or 4L85E auto? I have a 95 K2500 6. Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors. For this reason your shop is. Why is My GM 4L60E Transmission slipping? It's on a 1996 chevy blazer with the 4. GM 4L80E / 4L85E Transmission Overview. While lubrication is the main purpose for using transmission fluid, it also has other functions:. The 4L80E has proven reliable like it’s predecessor. Selecting a Hughes Performance 4L80E transmission for your vehicle opens the doors to all kinds of possibilities. Get the best deal for General Motors Complete Car & Truck Automatic Transmissions from the largest online selection at eBay. Auto Parts Warehouse offers car parts and car accessories. 4l80e in my 96 silverado sat for around 2 yrs until i just put a crate engine from jegs in. Mods are in sig - car makes about 500 rwhp. He said it was burnt a little, and replaced it, but. We offer the longest transmission rebuild warranty in NC. Check out free battery charging and engine diagnostic testing while you are in store. We sell discount auto parts online as well as cheap auto parts. this will. Sonnax T3-3-2431HP forged chromoly performance slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an affordable price. at first it will start out going into reverse slow but will go into it and dont slip, but after a while i have nothing at all in. I have a 4T80E in my 93 Eldo which is the transverse version of the 4L80E which is an electronic rendition of a 700R4. Maybe you noticed trouble with your manual transmission such as, the gears slipping or loud grinding. Featuring a 10" diameter, this fan flows up to 800 CFM, and includes a universal mounting kit. 75 overdrive. This design will replace the truck style bolt on yoke with a car style slip yoke and allow for proper slip travel and bushing contact for best performance. It is more robust in the area behind the bellhousing than most other units. The popular Saturday Night Special® Torque Converter delivers premium performance at a reasonable cost. Unlike GM's factory six-speeds, which are 'double overdrive' with both fifth and sixth gears under 1:1 ratio, TCI's 6X has a true 1:1 fifth and 0. The mythical CUCV 4L80E swap I just swapped out the TH400 in my M1028 for an electronic overdrive 4L80E. This page provides information on how the 4L80E automatic transmission from General Motors operates with the MegaShift™ controller, as well as the TunerStudioMS settings needed to configure the controller. Im using a LS376 480, atlas 3. two problems with the 4l80e one could be line pressure, the other the 80e has a fail safe that wont let the trans shift to reverse if it senses a speed of greater than 8mph. Stock clutch isn't slipping "yet". Cheap easy 4l65 to 4l80 swap Drivetrain. 1310 Series 32 spline T-400, 4L80, 4L85 Light TRUCK Transmission Slip yoke. 00 third, and 0. Similar to what we've just covered, the new strategy allows for the converter clutch to begin slipping as early as 2nd gear and to continue slipping until a cruising speed of approximately 54 mph has been reached. The Novak Guide to the GM 4L80E Automatic Transmission Introduction. The 4l80 is plenty strong to hold up to what you are doing.