4l80e Slipping In Second

Performance Built MT1 4L80E Automatic Transmission and Torque Converter. 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. When it is in drive in forward gears, it works fine, whereas if it is in reverse, it starts slipping. 4L80E's also use the "early" style drum and an actual sprag. do NOT contact me with unsolicited services or offers. Drive in "3" till hot and give hard throttle many times. 39 = Converter clutch. 48 second, 1. I have a 1992 chevy 2500 with the 1 ton tow package equipped with a 4l80e. Although I’ve put this as the best additive for slipping transmissions, being honest, this does a whole lot more and can be used either as a preventative treatment or problem treatment … if there was a magic ‘cure all’ for transmission woes, this would be on the list without doubt. 4l80e code p0894 (trans. All other gears shift normal. E153 transmission. Problem is the 1st-2nd gear shift is not happening soon enough and engine is bouncing off rev limiter. 0 liter inline 6 engine. Then, when it shifts into third, and the revs jump up to 4000 Revs. The only way to retrive trouble codes is with a scanner such as Tech 2 , snap-on, otc or equivelent. We are a leading Nos Pickup discounter, find a wide Nos Pickup deals for sale from Ebay. Often the delayed engagement will be most noticeable, on the first drive in the morning. No matter what you drive, we have a transmission control solenoid that was specifically designed for your make and model. It also allows customization of the transmission's behavior with user-friendly software. The 4L80E has a couple of inherent flaws in them that cause the 1-2 hang-up and slipping for no explainable reason. A TH400 behind my 496BBC. But when warm it slip in 3rd and go into limp mode and default to 2nd gear. Does anyone tow with a GM 4L80E or 4L85E auto? I have a 95 K2500 6. Just second gear. The shaft has one universal joint at the transmission with U-bolts over one set of bearing caps just like the axle end of the shaft. i have replaced all solenoids inside trans. If you are considering a transmission swap the following comparison information can be very helpful in your decision making. These cases have a 40 pulse VSS tail housing and special 4L80E adapter casting. The only thing you have in comon in 2nd and 4 th gear that wont cause problems in any other gears is the 2-4 servo and the 2-4 band. Due to some driveability-related is-sues, a reflash was introduced to alter this strategy. 4 L 8 0 - E Part No. How to Swap Overdrive Transmissions into Your Chevelle - Step by Step Building a modern performance muscle car without an overdrive trans­mission is extremely rare. Drive in "3" to verify. They simply aren't accelerating fast enough that the rotating mass really comes into play. It shares many components and design features. Works with the #3XX deep cast aluminum pan that holds 3 3/4 extra quarts of fluid. Trans Ratio 1st: Trans Ratio 2nd: Trans Ratio 3rd: Trans Ratio 4th: Trans Ratio 5th: Trans Ratio 6th:. Let us know what you think! Please use our Contact Us page for issues that require a more immediate response. This is a 95 3500 series w/5. 75 overdrive 4th gear. 4l80e transmission are completely gone through all parts that don't meet GM specifications and or has been updated and replaced call or text only. P2714 - code 2008. If you have "slipping" in first, D4, there is a problem with direct clutch, or line pressure. Transmission whine FIXED!!!!! Well, for those of you who changed your transmission fluid and then developed the dreaded whining sucking whirring noise in 1st and 2nd gear, I've got GOOD NEWS. GM Turbo 400 Transmission Slip Yoke, 4L80E/TH 400 (1350 U-joint): Amazon. General Motors 4L80E ‘91 to ‘01 Chevrolet and GMC. The only thing you have in comon in 2nd and 4 th gear that wont cause problems in any other gears is the 2-4 servo and the 2-4 band. 3/ S476/ 4L80E turbo/ 80lb injectors/ DBW/ 2004 truck ECM/93 pump gas and methanol I'm not totally new to tuning, but fairly new to HP tuners. thanks for taking the time to write this, normally i dont comment but that had real good structure. All are light duty 1/2 ton or passenger car transmissions. 10 gears, I imagine you could run through first and second gears pretty quickly if you're really getting on it. 48 first gear, 1. The reason the transmission was revving up going into OD was that 4th gear was slipping that much. 0 Multipoint EFI no my 540 ci BBC, the E6/92 Digital Ignition & Coil, Dual Sync Distributor, and the TCI EZ-TCU trans controller for my 4L80e transmission and connected to my ECU via CAN connection. I have no transmission codes, and the dealer says that it is internal problems. Now when cold the transmission shifts pretty good, I think it's a little soft on the 2-3 shift. we rework the shift schedule and allow you to use the torque of the engine to float over hills and maintain speeds without it kicking down and pulling high rpm's. Calculate GEAR, RPM, MPH, TIRE DIAMETER. Other factors, such as where the work is done (whether at a local auto repair shop, car dealership or you do-it-yourself) also factors heavily into the cost of repair. What could be wrong if my automatic transmission will not shift from first to second gear? What should I do when my transmission slips into neutral? Why does my transmission slip when I use overdrive? Why will my automatic transmission not go into reverse? Why won't my car go in reverse?. You Must Know These Common Symptoms of a Bad Transmission Solenoid We highlight the symptoms of a bad transmission solenoid, to help you effectively identify and solve the problems in your car's transmission system. The shaft has one universal joint at the transmission with U-bolts over one set of bearing caps just like the axle end of the shaft. You may have to register before you can post: click the register link above to proceed. I have the shop manuals that describe the condition and possible cause,. AFL and AFL. GEAR" PID is not switching to 2nd gear until around 63mph or 7440 rpm. php(143) : runtime-created function(1) : eval()'d code(156) : runtime-created function(1. Strange 3" Seamless Chrome Moly Driveshaft With Strange Forged Weld Ends & Spicer U-joints. transmission shifts hard - 5. I know I should have brought it to the transmission shop to have them troubleshoot it but it was a "special" deal from a friend of mine. All other gears shift normal. My transmission won't go into 3rd or 4th gear (90 Chevy 2500 4wd)? This is a used truck so I know little about the history on it. With these cars (Chryslers especially) if the shift control computer gets a bad sensor value, or if it detects a problem with the transmission, it will put the transmission into a VERY obvious limp home mode!!! You will have a normal reverse gear, but in any forward range you will have second gear only. 4L80E Transmission Heavy Duty 4WD 4x4 Merch- Due to restrictions imposed by Google Merch, there is an ADDITIONAL Core Deposit Required, which will be collected by phone with a Monster Representative. Our testing has shown that you will not see any significant power loss in a 11, 12 or 13 second combination. Rebuilt Transmission or Transmission repairs, loss of reverse in 4L60E The sudden loss of reverse in a 4L60E or a T-700R4 is a common problem in respect to the actual amount of internal problems these transmission have. Often the delayed engagement will be most noticeable, on the first drive in the morning. Otherwise, 2-4 band is worn out. These problems can be caused when the external sensors on the vehicle go bad. On some vehicles, there are sensors that function specifically for certain parts of the vehicle. If code 39 appears converter slip is problem. 4L80E's also use the "early" style drum and an actual sprag. The gearing to move such a heavy load is a 2. Second the automatic transmission is shifting hard from 1st to 2nd and from 2nd to 3rd, I am forced to shut the engine off for a couple of minutes and when I restart the engine the problem disappear, I have read your safety bulletins and gm is aware of these problems. Condition: One or more of the following problems: - The Malfunction Indicator Lamp is on. The stock 16 element sprag is in the center, with the 34 element on the right. 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. Re: 4L80E Transmission Problems: Mark: 5-5-09 : I also have a problem with a 4L80 trans defaulting to 2nd gear. 39 = Converter clutch. From bells to valve bodies, added solenoids, changes in pump and convertors. The transmission is 23. It will not downshift to 1. stroker97k1500 wrote: I paid $900 shipped for my 2003 4l80e 4x4 trans with 30K miles on it. Should be getting the transmission in about 3weeks to a month. My transmission won't go into 3rd or 4th gear (90 Chevy 2500 4wd)? This is a used truck so I know little about the history on it. As the owner of a vehicle, the only thing you can do to diagnose why you have a slipping transmission is to check the transmission fluid level and condition. light duty trucks for 1991. What could be wrong if my automatic transmission will not shift from first to second gear? What should I do when my transmission slips into neutral? Why does my transmission slip when I use overdrive? Why will my automatic transmission not go into reverse? Why won't my car go in reverse?. Despite its name, the 4L80E is not an upgrade to its GM counterparts. Are you saying that you do not have 2nd but you have 4th gear. Early units, pre-'71, will have the smooth inner race style drum on the right. the trans only has around 35k miles on it but lately it seems like it shifts as though it has a shift kit. SC-4L80E Transmission Reconditioning Kit FULL COMPAT I B I L I T Y • Full compatibility with 1991 and up. This manual can be used in collusion with any type of scanner utilized in retrieving these codes from the computer. GM 4L80E technical information The 4L80E transmission is a four speed automatic with torque converter clutch. Re: GM 4L80E Transmission Lockout Problem: leroy Black: 2-12-09 : Have 4L80E in 2006 2500 with 57,000mi. What this means to you is the fact you are getting a quality product that meets or exceeds the OEM standards, not just a part that is taken apart and “patched”. This comes at the expense of a shallower first gear, however, which hurts low end acceleration. Since the vehicle does seem OK in second I would suggest that the forward clutches are holding since they are applied in both 1st and 2nd. SC-4L80E Transmission Reconditioning Kit FULL COMPAT I B I L I T Y • Full compatibility with 1991 and up. Once the band is completely worn, you will no longer have 2nd gear. I used a break out box to see if it was trans at fault but its not. TYPE Transmission Component Slipping P1870 This DTC detects excessive TCC slip. Doesn't the 2-4 band cover 2nd and 4th gear? The Band is applied in both 2nd and 4th gear. I am having very hard shift from 1st to 2nd gear, harded after it gets warmed up. The 4L60E transmission weighs 146 pounds dry, and 162 wet. You can feel it start to slip from 1st to 2nd and from 2nd to 3rd when pushing on it for awhile. These transmissions mate a three-element turbine torque converter to a Simpson planetary geartrain , providing three forward speeds plus reverse. 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. What it does now is completely slip in 3rd, and I dont think it even goes fast enough to get to overdrive. Look on craigslist if it needs to be replaced. Reverse also works fine. it acts like it is not going into overdrive & sometimes upshifts like an old tranny with a shift kit. This transmission has been built at our state of the art facility using the latest advancements in remanufacturing technology. I recently did a refresh on a friend's 4L80E (basic rebuild, New bushings, washers etc. Im using a LS376 480, atlas 3. Ive just finished building my new buggy and im having problems with a new 4l80E quadzilla from www. Sonnax Sure Cure kit SC-4L80E, fully compatible with '91-later GM 4L80-E and 4L85-E units, is a comprehensive reconditioning package featuring the best Sonnax products developed to help rebuilders restore and enhance transmission performance. Reasons for the transmission slipping include things such as worn parts and gears, or a bad clutch, but these are not as common as just plain low or ineffective fluid. Should be getting the transmission in about 3weeks to a month. Graph RPM vs. Try Prime All. At speeds over 35 MPH, the engine feels like it's over-revving. in the obd2 system if you went to much more it would start to slip in second. A delayed engagement is a type of slip that occurs when the clutches or bands, which allow the vehicle to move, do not operate instantly. Automatic transmissions make specific noises when a malfunction occurs. TH400 has a 32-spline output shaft. has all four gears but no lockup Has code Po894 slipping components will turn on chek engine light after a while. We do not turn on the second fan, but place it facing the first. Lets first talk about the difference between a 4L60, and a 700-R4. Drive in "3" to verify. This unit allows the use of a Ford starter in the OEM location. This calculator will graph RPM vs. I tried with the shift lever, and also by putting the EZTCU in manual shift mode and toggling down to 1. 4th will only work if the 2-3 solenoid gets enough pressure. The customer may complain that the "vehicle is going to neutral at higher road speeds". Sonnax Transmission Company T3R-3-9161HP - Sonnax Slip Yokes Compare Yoke, TH400, Saginaw Transmission, Forged Steel, 32-Spline, Spicer 3R Joint Style, 7. This is a 95 3500 series w/5. 5L-powered GM trucks, the four-speed, lockup 4L80E automatic wasn’t designed specifically for diesels. No Reverse, No Forward, No Upshifts, No 2nd, No 3rd, No 4th Input Sprag Rotation Proper Torque Sequence on Valve Body Pin Location in Case Rebuilding Tips Wrong gear start / wrong shift pattern Upshifts to 2nd in Manual Low No 3rd & Rev. i did not do any more unless i had a corvette servo and a shift kit. Worked fine for a few miles but then started to slip between 1st and 2nd gear. transmission shifts hard - 5. The NP205 needs to be modified for this speed sensor or you can do what others have mentioned earlier in this thread. The scan tool he used is the GM Tech 1 and it showed slippage in 4th. How To Rebuild your Automatic Transmission Part I. 1st colomn is "A", 2nd colomn is "B", 3rd is TCC. Make a long story short I drained transmission fluid, pulled cover and replaced solinoid B controls third,4th and overdrive. Valve body gaskets included. 4L80E TECH NOTES TCC shudder at low rpm 1400 - 1700, however no codes, ratio is correct and no TCC slip rpm shown on movie and signal doesn't change. Transmission band adjustment used to be a regular part of a basic transmission service. No Reverse, No Forward, No Upshifts, No 2nd, No 3rd, No 4th Input Sprag Rotation Proper Torque Sequence on Valve Body Pin Location in Case Rebuilding Tips Wrong gear start / wrong shift pattern Upshifts to 2nd in Manual Low No 3rd & Rev. Why is turbo400 slipping out of 2nd 3rd gear? What would cause a 4L80E trans in a 94 Chev c2500 to fall out of high gear It isn't slipping? get to 3000 RPMs in 2nd or 3rd gear and then. Any help would. Call ASE certified transmission specialists at Trans Works Transmissions!. Also don't forget to use the R-1, 1-R shifting pattern when plowing, reduces the chance of loosing the reverse band, common on the 4L80e. The four meaning it has four gears (1-3 plus overdrive). 48 for 2nd, and 1. Corrects/Prevents/Reduces: No lockup in 4 th , codes 68-39-85 , Hard shifts, no 4 th , direct clutch slippage. If one of the input or output speed sensors goes bad, it thinks the tranny is slipping or not in the right gear and poof limp mode. Not to be used in place of real testing. TH125 transmission shift kit, corrects, prevents or reduces 3-2 down shift clunk, lock up shudder, reverse slip, torque converter drain back, late shifts, soft shifts and band failure. 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). Now when cold the transmission shifts pretty good, I think it's a little soft on the 2-3 shift. Strange 4130 Moly slip yoke. I used a break out box to see if it was trans at fault but its not. When I bought it used two months ago they told me it was rebuilt two or three years ago. 4l60e problems not shifting to 2nd and 4th? This is a discussion on 4l60e problems not shifting to 2nd and 4th? within the Automatic Transmission forums, part of the Drivetrain category; Originally Posted by Cutlass I still think its the sunshell I agree with you too but that still having reverse. EGR valve spring weak causing lean burn miss in engine, feels like a miss but runs great otherwise even at stall. Problem: It has no first gear. Transmission shops wanted $600-$2500 to fix it. I have saved quite a few slipping transmissions with it. The US Shift Transmission Control System is used to control the GM 4L80E, and 4L85E. I already changed the fluid and filter and used the proper procedure to check the level of the fluid which seems correct. The 4L80E has a max torque rating of 440 lb. After the transmission slipped a lot, it would go into limp mode, or stuck in 2nd gear as it's better known. 4l80e trans delayed shifting 1st to 2nd when starting shifts fine later - Cars & Trucks question can cause the trans to start slipping and actually burn up clutch. I did this even in my Mazda 3 as in the manual it said use 2nd gear for starting in bad weather to limit slippage. 4L80E (four-speed) Although it’s found primarily in early 6. 75 overdrive in 4th. has all four gears but no lockup Has code Po894 slipping components will turn on chek engine light after a while. Sometimes a bad speed sensor will mess up the function of the ABS brakes (causing them to overreact or not kick in at all, which usually creates a lig. On a take off from a dead stop, it makes no difference whether the shifter is in 3rd or Drive, it will still take off in 1st. Codes can be cleared by. A cheap and easy fix if your 4L60E automatic trans is shifting hard or shifting late. When that pressure is too high, shift can happen erratically and forcefully. 39 = Converter clutch. do NOT contact me with unsolicited services or offers. What this means to you is the fact you are getting a quality product that meets or exceeds the OEM standards, not just a part that is taken apart and "patched". While GM did give it a steep first gear with trucks in mind, only the 4L80E – the electronic overdrive version of a TH400 – was meant for such heavy-duty tasks. This can require some patience and dexterity, as it will be necessary to align and engage two sets of clutch plates with two different driven hubs. 00 which includes how to retrieve Isuzu and GM W3500 and W4500 truck transmission trouble codes without use of scanner, trouble code descriptions and complete diagnostics, Isuzu and Gm Truck Transmission wiring diagrams. I then checked the wiring from the computer plug to the trans plug and input sensor and they all rang out for continuity. You may have to register before you can post: click the register link above to proceed. The pump stator has one of the most important jobs and that is to hold the shaft steady while the input drum assy is turning, anywhere from idle to 5500 rpm (stock vehicles). But when warm it slip in 3rd and go into limp mode and default to 2nd gear. 2 different length inputs used (short input 2" known to be used in 1985 W/TH400 and most were long 3. I may need a new transmission??? suggestions? Zachary (7/15/2011) I was looking for information about which transmission model number is in my 2000 jeep Grand Cherokee with the 4. include two (2) shift solenoids, one (1) EPC solenoid, one (1) lockup solenoid, one (1) pressure manifold switch. The 4L80E can handle a lot of torque; it is quickly becoming the go-to automatic for high-performance LS swaps. Covers all the criteria to consider when starting an LS swap project. Why is My GM 4L60E Transmission slipping? It's on a 1996 chevy blazer with the 4. SC-4L80E Tooling Required: 77754-TL Sonnax Sure Cure kit SC-4L80E, fully compatible with '91-later GM 4L80-E and 4L85-E units, is a comprehensive reconditioning package featuring the best Sonnax products developed to help rebuilders restore and enhance transmission performance. The stock calibration would kick out of 6th way to easy. I have charged the fliud (World standard) twice and can not tell any big differance. You're better off driving it with a Tech2 on it, and you can get apply data, slip data. Otherwise, 2-4 band is worn out. 73 Rearend trans slips in 2nd gear. 9L Dodge Cummins 47RE / 48RE at Diesel Power Products. I had the 4th shop run a scan on it during a road test. Current category hierarchy. Once I did that now it shifts like a new truck. How to Swap Overdrive Transmissions into Your Chevelle - Step by Step Building a modern performance muscle car without an overdrive trans­mission is extremely rare. Any help would. I have a 93 one ton chevy with a 4l80e , my truck would not go into third gear or overdrive. You can see the rpms shoot up inbetween gears before in engages second gear. The second consideration is the mounting. Servo seals may be damaged (can be fixed without removing trans. Look on craigslist if it needs to be replaced. Transmission is a 4l60e. You may have to register before you can post: click the register link above to proceed. If you want to skip general information and read comparisons between some of the best diesel pickup transmissions follow the links below:. At speeds over 35 MPH, the engine feels like it's over-revving. The only thing you have in comon in 2nd and 4 th gear that wont cause problems in any other gears is the 2-4 servo and the 2-4 band. If he lets off the gas some it will shift back into 3rd. A torque converter works by transferring power, through fluid motion. in the obd2 system if you went to much more it would start to slip in second. The 1st gear works fine, then it will skip 2nd as he accelerates and then drops into 3rd. 7 liter gas engine or the 6. You may have to register before you can post: click the register link above to proceed. Like a bat out of hell. I also discovered lots of wear in my slip. 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. doc SENSED PARAMETER FAULT CODE MONITOR STRATEGY DESCRIPTION MALFUNCTION CRITERIA AND THRESHOLD VALUE(S) SECONDARY PARAMETERS AND ENABLE CONDITIONS TIME REQUIRED AND FREQUENCY MIL ILLUM. Known as delayed engagement, it is one of the most common symptoms of problems with any automatic transmission. 1500HD 4x4 CCSB 6. 73's and 265/75-16's It has approx. I think if you have ruled out everything else it's time to look at the 2-4 servo and the 2-4 band. Are you saying that you do not have 2nd but you have 4th gear. RFE-PP-ODHP. That wiring diagram is the same one that I have, only mine has highlighter marks all over it. We have two levels of the 6L90E transmission. The MLPS or manual lever position sensor is one of the vitally important inputs to the transmission control unit (TCU) of a vehicle with modern computerized automatic transmission. i put 200 miles a week on the truck. Get Quality Transmission for Less In Baraboo! Serving Since 1955. Automatic transmissions make specific noises when a malfunction occurs. Sonnax Transmission parts for GM 4L80-E applications. Our stage 0ne 6l90e transmission that is good for up to 700 Hp and then our stage two which can handle up to 1000 Hp. EGR valve spring weak causing lean burn miss in engine, feels like a miss but runs great otherwise even at stall. Reset Search. Fluid is red with no abnormal smells. 3 L engine (from 2002 Silverado) with a 4l80e transmission shifting hard from 1st to 2nd gear. Valve body gaskets included. This is another really common problem with the 4L60E. light duty trucks for 1991. If you hit the gas and your van slips between the gears, refuses to shift, or it doesn't go anywhere at all, then you may have a failed 4L80E shift solenoid. Often the delayed engagement will be most noticeable, on the first drive in the morning. Early units, pre-'71, will have the smooth inner race style drum on the right. a couple of hundredths) and the car will roll through the stage beam at an RPM less than normal stall speed. i raised line pressure 10% across. With these cars (Chryslers especially) if the shift control computer gets a bad sensor value, or if it detects a problem with the transmission, it will put the transmission into a VERY obvious limp home mode!!! You will have a normal reverse gear, but in any forward range you will have second gear only. As the owner of a vehicle, the only thing you can do to diagnose why you have a slipping transmission is to check the transmission fluid level and condition. Sonnax Transmission parts for GM 4L80-E applications. The servos with this issue only deal with shifting from 1st to 2nd, 2nd, 2nd to 3rd, 3rd, 4th to 5th, and 5th, delays going into reverse but not 4th or issues with not having any reverse. Once the band is completely worn, you will no longer have 2nd gear. Fluid is red with no abnormal smells. usually with a speed sensor problem it will go into "safe mode" which is only first gear. More Details. But when warm it slip in 3rd and go into limp mode and default to 2nd gear. 0 sec Sys Volts > 8. No 2nd or 4th gear. Almost every rear-wheel drive vehicle manufactured by General Motors features the 4L60E transmission. "We like to drop the pan so we can inspect for damage. It has acted normal ever since. 49932 TH125C Transmission shift kit 1980-on (With new valvebody plate). But was the center support bushing worn and was the inner part of the direct drum touching down on the center support?. These are your responsibility and will need to be paid when you collect your goods. Re: 4l60e shifting problems: Teddy Spivey: 11-17-09 : I have a 95 SS, my problem seems to occur at the shift between 2nd and 3rd when i'm really on the gas. Was not slipping before service, now it is after having the 50k done. No 2nd or 4th gear: The 2-4 band is slipping, or servo seals are leaking. Kent Moore J-38869 Slip Yoke Driveshaft Seal Tool for 94-later 4L80E, 6L80 See more like this Pair 6AN x 1/4NPS 4L80E Transmission Oil Cooler Adapter fitting for GM 1997-2007 Brand New. Re: 4l80e problem First gear, D4, is using the direct clutch only. The least expensive online catalog for all your Muncie needs. Our Chevy NV3500 transmission is for sale at our lowest price yet. WILL FIT 82-UP GM Chevrolet Chevy 4L60E 4L65E Transmission Parts: 4L60E, SHIFT CORRECTION PACKAGE 4L60E 93-UP (SUPERIOR) GM Chevrolet Chevy 4L60E 4L65E Transmission Parts. 3 L engine (from 2002 Silverado) with a 4l80e transmission shifting hard from 1st to 2nd gear. such as 2nd gear starts, no overdrive, etc. "We like to drop the pan so we can inspect for damage. This can be caused from a misadjusted throttle-pressure cable. What can happen in this case is that the alternator can still supply power to charge the battery to start the car, but insufficient to charge the battery and supply a heavy electrical load- lights, air conditioning, stereo, wipers, rear window heater, turn signal etc. TH400 has a 32-spline output shaft. Here's what I had. -I have also logged the shift solenoids and tried to match them up to the normal 4l80e specs and they don't seem to jive at all. All gears/shifting works great in both forward and reverse when vehicle is cold. The u joints seem fine, rearend is still pretty tight. It has acted normal ever since. 75 overdrive 4th gear. The only time I hear a repetitive clunk, banging, slipping noise (can’t think of a better word) is when going 45 MPH or faster while accelerating. The name only changed to better identify the transmission. Yeah it moves just fine from a start in 2nd. April 02, 2008. When diagnosing the problem and the cause of the whining noise, take note of when the sound is occurring, such as when the engine is idle, when shifting gears, when driving at. The noise from the engine may change in pitch or start to sound like whining. The vehicle: 2005 Chev. injectors were added to the combination, along with an LS1 intake to allow the engine to fit under the hood. Does it move in manual 1,2, and/or 3? When engaging drive it shouldn't take more than a second for most transmissions. I changed the fluid and filter, but no change. Second even when held in manual Low. Why is My GM 4L60E Transmission slipping? It's on a 1996 chevy blazer with the 4. LS SWAPS: Engine and Driveline Guide Includes in-depth instruction and photos. If I start from a dead stop in D it will accelerate through 1st and 2nd gears without any slippage and when the transmission tries to shift into 3rd it acts if there is no 3rd gear (revs to moon- no forward motion). No Reverse, No Forward, No Upshifts, No 2nd, No 3rd, No 4th Input Sprag Rotation Proper Torque Sequence on Valve Body Pin Location in Case Rebuilding Tips Wrong gear start / wrong shift pattern Upshifts to 2nd in Manual Low No 3rd & Rev. Go back to first paragraph. Second, the worst case scenario is extremely rare. When 3rd is in, it's solid, but more often then not, when it's supposed to shift to 3rd from 2nd, it actually go's to first. The pump stator has one of the most important jobs and that is to hold the shaft steady while the input drum assy is turning, anywhere from idle to 5500 rpm (stock vehicles). The TCM will detect failures within the systems that it monitors and any failure, from a bad solenoid to a blown fuse, will trigger a limp-in mode designed to prevent further damage to the transmission while allowing some limited capacity to travel. Does it move in manual 1,2, and/or 3? When engaging drive it shouldn't take more than a second for most transmissions. (High TCC Slip in 4th gear is detected by P1870 Transmission Component Slipping) TCC Slip => 125. Automatic Overdrive Transmission Swap. The customer may complain that the "vehicle is going to neutral at higher road speeds". Your transmission is just supposed to shift and leave you alone. It seems to hesitate on the shift from 1st to 2nd gear an then slams into 2nd hard. You can also find other images like images wiring diagram, images parts diagram, images replacement parts, images electrical diagram, images repair manuals, images engine diagram, images engine scheme diagram, images wiring harness. intermittent problems are a pain to diagnose but id still check again for hard codes with a GM TECH 2 before i did anything else. Known as delayed engagement, it is one of the most common symptoms of problems with any automatic transmission. Comes with complete, easy to follow instructions. Although you may have some of these symptoms / problems with your 4L60E Transmission, the repair solution may differ. The gearing to move such a heavy load is a 2. With the advent of overdrive automatic transmissions like the TH200-4R, the TH700-R4/4L60E, the massive 4L80E, the Ford AOD, and all the rest, the new-car companies were striving for improved fuel. I used a break out box to see if it was trans at fault but its not.