4l80e Slipping In Second

Construction and Size. 4L80E Hard Shifting Jan 25 2012, 5:52am Hi, I have a 1992 silverado with a 4L80E trans. 700R4/4L60E’s have a low 3. He said that if he didn't keep his hand on the shifter it would pop out of reverse during the click. My van will only reach 2nd gear without going into the higher. perplexing indeed. Yoke Material Cast steel. 4l80e converter you can use a stock one or a customer torque converter from a after market company. I tried a hit from a slow roll today and I think the tranny is flaring from 1st to 2nd. 68 or 68 & 39 = 4th clutch or converter slipping or no 4th warm. 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). Please help before I yank the motor and scrap the rest. Servo seals may be damaged (can be fixed without removing Transmission. Just second gear. Only under high torque or high vehicle speeds will the PCM command the converter clutch to be fully locked. 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. If those are the problems, suspect that the drive shell has broken or has stripped out splines. These are basically the same components needed for the older transmission swap, just performed at the factory. This comes at the expense of a shallower first gear, however, which hurts low end acceleration. the only thing i can add is that my 4l80e was messin up about a year ago and found out one of the VSS had the wires stripped and throwing bad info to the ecm. 95' 4L80E only got 2nd & reverse. Lock-up can be engaged in second, third, and fourth forward ranges, and can also be engaged at wide open throttle. Step 1: Select transmission from the drop down list or, if it's not in the list and you know the gear ratios of your transmission, enter them below. It's been shifting in and out of 3rd intermittently. It has seemed to slip from 1st to 2nd gear ever since then. Try not to run or drive the car or further damage could result. I was lazy and chose not to on my fist swap and you will notice it. 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. Here’s what you need to know. It seems to hesitate on the shift from 1st to 2nd gear an then slams into 2nd hard. The gear ratios used for this transmission were 2. Otherwise, 2-4 band is worn out. 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. 75 overdrive. The mid-length headers use a gasket-less ball and socket type collector for a leak free install. Our testing has shown that you will not see any significant power loss in a 11, 12 or 13 second combination. We build your transmission with any aftermarket shaft to adapt to transfer cases like Atlas and Hero, just to name a few. 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. This second fan is attached to the transmission. This feature is not available right now. I'm running a full suite of FAST products that include the XFI 2. Mega Monster Transmissions Engineered to Dominate, the 4L80E Mega Monster transmission is tough enough to withstand the rigors of even the toughest street machines delivering tire-spinning shifts race after race. 1L (L18) in these vehicles: Express, Savanna, Suburban, Yukon XL, Silverado, Sierra, Avalanche, P30, W-series W-3500, Isuzu NPR TRANSMISSION DIAGNOSTIC PARAMETERS 2005trans6_4L80E. She said years ago they had tranny trouble; it would stay in low. 2003 2500HD 6. If Reverse is OK, the rear band is probably OK as well. Happel discovered a 1999 4. About a week ago, it started to slip a little when climbing a hill like sliding into gear and not a good firm shift. uk: Car & Motorbike. Check out our billet torque converters for 700R4, 4L60E, 200-4R, 4L80E, 6L80E, TH400, 4R70W, 4R100 and 48RE transmissions. 93 chevy silverado ext cad 3500 long wheel base 4l80e trans. Then add an inline filter to protect the new one. This continuous low-rpm converter clutch slip still allowed for improved fuel economy while further enhancing driveability by reducing driveline torsional disturbances. 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. 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. There was one other occasion when the trans did what you said. No 2nd or 4th gear. Drive in “3" till hot and give hard throttle many times. This is a computer controlled transmission first introduced in G. The Novak Guide to the GM 4L80E Automatic Transmission Introduction. But when warm it slip in 3rd and go into limp mode and default to 2nd gear. This piece broke! https://amzn. Direct fit for all 1991 thru 1996 4L80E transmissions. If there is a pressure tap on the transmission I would start there. The automatic transmission remaining momentarily in neutral, after we shift into gear, means we have a delayed engagement. Does it move in manual 1,2, and/or 3? When engaging drive it shouldn't take more than a second for most transmissions. ing a constant 20- to 40-rpm slip on the clutch. spicer slip yoke turbo 400 th400 4l80e chevy chevrolet gmc truck yoke 32 spline. The only real difference is the name. These problems can be caused when the external sensors on the vehicle go bad. Allison Transmission Questions Hello herbneffie, Your next fluid change would be at two years or 23,000 miles whichever comes first since with Dexron III they lowered the interval to 18,000 miles from 25,000. 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. If you have a front-wheel-drive car, it's stuck on the side of the engine under the hood. 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. This article applies to the Chevrolet Silverado GMT800 (1999-2006). I then checked the wiring from the computer plug to the trans plug and input sensor and they all rang out for continuity. A delayed engagement is a type of slip in the automatic transmission. A transmission can prompt a whining noise if the operating system has malfunctioned, the gears are not operating correctly or the transmission fluid needs to be changed. I tried a hit from a slow roll today and I think the tranny is flaring from 1st to 2nd. spicer slip yoke turbo 400 th400 4l80e chevy chevrolet gmc truck yoke 32 spline. So its throwing the 2-3 solenoid and tcc codes because when the fluid is hot it can't create enough pressure and thus can't stay in torque or 4th. Worked fine for a few miles but then started to slip between 1st and 2nd gear. GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising. - At 35,500 miles. An Easier Way to Rebuild Planets. I unhooked the input speed sensor to bypass this and found it is slipping in 3rd and. Servo seals may be damaged (can be fixed without removing Transmission. I have a Chevelle with 402 LSx with a 4L80E (Pro Torque converter) controlled by the Dominator ECU using the Holley harness. These vehicles came with the GM spacer and bolts and the flat factory flexplate. 96 K2500 4l80e slips when 1st started (cold) only for a minute then takes off and shifts fine? any help? - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Compared to other components of a car, this particular unit receives the most amount of stress due to heat and friction generated by the movement of. The 4L60 has a 3. Drive, and 3rd does not work at low speed but will at higher speed. light duty trucks for 1991. Slipping 4L80E transmission? While driving the veichle it would slip when upshifting so i put it down into third and tryed it without overdrive. Your transmission is just supposed to shift and leave you alone. Allison 1000 transmission specs, ratios, and information. The transmission shifts erratically, slips or does not shift at all. 3L Vortec engine, and 4wd. There are too many to list them all here, but for the GM cars, there are four popular patterns: a TH350 small, the TH400 larger style, an LS pattern that’s slightly smaller than the TH400, and, finally, a 4L80E bolt pattern for the larger 12-inch converters. 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). 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. Find new transmissions for sale today on the internet. Look on craigslist if it needs to be replaced. This allows the spring to push the 1-2 shift valve into the upshifted position. Transmission bangs when shifting from 2nd to 3rd gear and downshifts hard from 3rd to 2nd gear. We offer an upgraded Heavy Duty Street/Strip series 4L80E that is capable of withstanding 1,000+ flywheel horsepower. I bought a transmission Manuel on the 4l80e. 4L60E 4WD problems with 2-3 shift flare after overhaul? - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. These are basically the same components needed for the older transmission swap, just performed at the factory. Your transmission is just supposed to shift and leave you alone. The 4L60-E transmissions uses several solenoids and sensors to control/activate its 4 gears. 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. The 700r4 isnt holding up to the big block and I was thinking about swapping in a 4l80e. About: Fleetwood RVs. If Reverse is OK, the rear band is probably OK as well. "We like to drop the pan so we can inspect for damage. I'm tuning my truck from scratch. If you want to try an additive try one of the Lube Gard products, but don't count on a fix in a bottle. -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. An Easier Way to Rebuild Planets. Headers will work with the following transmissions: TH350, TH400, Muncie, 700R4, T-56, 4L60E, 4L65E, 4L80E, 6L80, 6L90, and TR6060 5. 4L80E is a TH400 with the OD added and electronic control. The most recently reported issues are listed below. Finally, we also offer our max upgraded Extreme Duty Street/Strip series 4L80E that is rated for use with 1,500+ flywheel horsepower. 273 DIAMETER SHAFT GM Buick Oldsmobile Pontiac Chevrolet Chevy 4L80E 4L85E Transmission Parts 4L80, BAND FRONT 1. With something as sophisticated as a transmission, an ounce of prevention is definitely worth a pound of cure. feels like it goes into neutral engine rpms go up then it makes a boom sound and goes into 2nd or 3rd gear with reduced engine power. Otherwise, it always slips. Step 1: Select transmission from the drop down list or, if it's not in the list and you know the gear ratios of your transmission, enter them below. 91-93 is one style trans, 94 another, 95-96 is another, 97-early 99 is another style, then late 99+ is another. You may have to register before you can post: click the register link above to proceed. Tip 4: If your transmission is slipping, replacing the shift solenoids, even if they're fried will not solve the slipping issue. I've damaged two transmissions usually 2nd & 3rd gear. They said when they were going down the interstate it would almost act like you put it in neutral and started revving it let off for a second and it would grab and like it should. The slip yoke in the middle of the driveshaft was a bit dry, but didn't feel sticky. If I downshift into second and cruise at a slow speed (or fast for that matter) and give it gas (slowly accellerate AND/OR nail it) the tranny slips. Although it was first reported at 16K miles. Cause: two things make this transmission back up: one the reverse input clutches, can be wiped out due to bushing wear and ring damage on stator, second is low reverse clutches wiped out. 1L (L18) in these vehicles: Express, Savanna, Suburban, Yukon XL, Silverado, Sierra, Avalanche, P30, W-series W-3500, Isuzu NPR TRANSMISSION DIAGNOSTIC PARAMETERS 2005trans6_4L80E. The 6L80 would have big shoes to fill, with legendary predecessors like the TH400, 4L80E and 4L60E transmissions. US Shift Electronic Transmission Control Systems let you take charge of your 6R80, 4R70W, E4OD, 4R100, 4L60E, or 4L80E transmission and unlock its true potential. They said when they were going down the interstate it would almost act like you put it in neutral and started revving it let off for a second and it would grab and like it should. This transmission has been built at our state of the art facility using the latest advancements in remanufacturing technology. After a whole lot of back-n-forth, I finally made the decision to install the 4L80e. This piece broke! https://amzn. On the '93 models, the temp sensor is built into the internal wiring harness, not a seperate sensor. 4L60e 2-3 Shift flair fix blackericdenice. com was first made aware of the issue when Daryl Watkins, the owner of a. For the 4L80E the pressure control solenoid changed from 91-93 to the 94+ style. The truck has enough grunt to pull just about anything, but I am worried about using 4th when towing my rig to Moab this year. The full manual valve body option features a forward shift pattern, and still retains the use of the lock-up torque converter which can be activated by a separate toggle switch or push button (not included). Second to third shifts are beginning to slip noticeably. 25 WIDE 4L80E 99-UP FRONT SERVO PISTON HAS. Was not slipping before service, now it is after having the 50k done. With franchises conveniently located coast-to-coast, Mister Transmission is the largest chain of transmission and driveline repair specialists in Canada. All of my gm vehicles i run F**d type f fluid. Re: 4L80-E transmission won't shift: shawn w. GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising. Rebuilt Chevy Transmissions, GMC Transmissions, GM Transmissions shipped Nationwide. Servo seals may be damaged (can be fixed without removing trans. " It's okay to ask for a second opinion, openly accusing your mechanic of trying to fleece you is something different. Then, when it shifts into third, and the revs jump up to 4000 Revs. Transmission fluid cooler line connections are found on the right-hand side of the THM400. The computer also turns off the transmission's electronic shift solenoids which in turn causes the unit to default to a single gear only (usually 2nd or 3rd). 3l 087 100 1985-94 l4, 1. It does have tranny hold back when put in first and letting off the gas at 25mph. I would highly recommend it!. Transmission repairs can be very costly so be sure to completely diagnose and be sure of the symptoms of your problem before you take your car in for a transmission service. The rear band is also used for Reverse. The difference is that an automatic transmission engages and shifts gears without the need of intervention. Seems way easier to me than a lot of electronic nonsense for the 4L80E, unless you're into that sort of tech for a car. second speed sensor. 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. It starts in second from a standing stop. We're here to help so being rude won't get you very far. I have saved quite a few slipping transmissions with it. Worked fine for a few miles but then started to slip between 1st and 2nd gear. No Core Charge. This transmission has been built at our state of the art facility using the latest advancements in remanufacturing technology. And there is an audible "click" every 1/2 second or so, the click is accompanied by a push-back. 4L80E highway speed slip? If this is your first visit, be sure to check out the FAQ by clicking the link above. Best runs with the old setup was 6. I spoke to four different transmission shops, gathering advice. Below is a list of buttons that we have added to navigate directly to the page of each problem. The first issue I noticed is that the car would not shift into 2nd gear and would bounce off the rev limiter. 4l60e, 4L80E Transmission. 3rd/OD acts up and sometimes never hits, in which because of the Northstar computer after so long of no shift it automatically defaults to 2nd gear. My van will only reach 2nd gear without going into the higher. spicer slip yoke turbo 400 th400 4l80e chevy chevrolet gmc truck yoke 32 spline. No pressure rise forward, limited to 130 in reverse. Universal Joint Style 1350. pressure, plugged modulator, force 2nd delete for full manual vb, dual fed directs, 4L80e 34 element direct drum, 6 clutch direct, 4 clutch intermediate,5 clutch forward with HE frictions. If the run is not yours you must state explicitly the car is not yours. 0-liter Vortec with a 4l80E transmission is the only Gen III/ IV engine that accepts an early GM transmission without a flexplat adapter or spacer. If this is your first visit, be sure to check out the FAQ by clicking the link above. NOTE: "For this kit to hold 1st, 2nd and 3rd to any RPM", For 1st gear place shifter in 1st position manually, upshift to the 2nd/D position for 2nd gear then immediately pull shifter back down to the 1st position " It will stay in 2nd gear", when ready for 3rd gear, shift to the 2nd/D position again it will now go to 3rd gear and when ready. Below is a list of N54 powered vehicles in the 10's, along with any details such as videos, build links or time slips. in the obd2 system if you went to much more it would start to slip in second. Second, the worst case scenario is extremely rare. Re: 4L80-E transmission won't shift: shawn w. 4l60e, 4L80E Transmission. Like most twin screw superchargers, the Whipple has an internal bypass which can swing the engine from vacuum to full boost in a fraction of a second. 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. An automatic transmission is a hydraulic pressure driven system that can make different noises than manual transmission problems. When this happens you have no 2nd gear, 4th gear, or reverse. Seems way easier to me than a lot of electronic nonsense for the 4L80E, unless you're into that sort of tech for a car. 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). com and Wayne Clayton. Any help would. P0894 CHEVROLET Meaning The Powertrain Control Module monitors the difference between engine speed and transmission output speed. The 4L80E transmission is known for sensor problems. Chrome-Moly Transmission Yoke 1350 Use With Roller Bearing Suit GM TH400, 4L80E, & 2nd design Super T-10 32 spline Strange stocks Spicer heavy-duty 1350 series yokes and a superior line of 1350 series Chrome-Moly transmission yokes for the most popular transmissions. 6L Duramax in GMC and Chevrolet pickups since 2001. 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. I unhooked the input speed sensor to bypass this and found it is slipping in 3rd and 4th. 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. The previous owner purchased the truck 7 years ago with 90k miles and hasn’t changed any fluids in that time other than oil – I don’t know anything about the truck’s early history. Our transmission controllers are compact, packed with features, and have a built-in display for tuning as well as user-friendly software for more in-depth tuning. The gear ratios used for this transmission were 2. This slipping can go on quietly, and therefore unnoticed. ing a constant 20- to 40-rpm slip on the clutch. Since 1963, Mister Transmission is the name Canadians trust to provide them with high-quality transmission repairs and expert service. 3l 087 100 1985-94 l4, 1. of torque, giving it a max load capacity of 18,000 pounds. 4 have been discontinued so you have to buy the one for the 5. Rebuilt Chevy Transmissions, GMC Transmissions, GM Transmissions shipped Nationwide. I gradually lose reverse (it slips) when it heats up. Sown here are the 426 Hemi adapters. 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. The kingpin of TREMEC's high performance line-up, the Magnum double-overdrive 6-speed transmission takes the very best from TREMEC's current OEM technologies and pairs it with the most popular features of the TKO 5-speed. I unhooked the input speed sensor to bypass this and found it is slipping in 3rd and. OTSPARTS 4L80E OVERHAUL KIT 1997-ON THIS KIT CONTAINS ALL THE SOFT PARTS TO REBUILD YOUR 4L80E GASKETS-ORINGS-LIP SEALS-SEALING RINGS-METAL CLAD SEALS ALL PARTS ARE OE QUALITY BY TRANSTEC. Re: 4L80E problems for those up for the challenge 01-05-04 06:31 AM - Post# 365522 In response to Jay727 What about the pressure control solinoid? I just read that 1991-1993 solinoids operate at 292. If he lets off the gas some it will shift back into 3rd. 4L60E / 4L80E The transmissions above, are rear wheel drive 4speed automatics that are all computer controlled. GM runs this clutch way loose for some reason, Too much clearance allows the Piston to pick-up too much speed & SLAM the Clutch Pack, Which doesn't do the Case Lugs, Intermediate Snap ring, Or the Intermediate Sprag any favors!. Below is a list of N54 powered vehicles in the 10's, along with any details such as videos, build links or time slips. i put 6 years of track racing and tons of street "driving" on a non-billet 200 car ran low 11's. 4L80, BAND FRONT 1. Our transmissions suppliers can provide quotes you wont imagine and get the transmission on pallet and shipped to your location of choice ready for your mechanic to install. Should be getting the transmission in about 3weeks to a month. I have time slips to prove it. The 4L80E was introduced in 1991. At Jake's Performance the 4L80E is our most popular transmission. This is one of the most basic car maintenance tasks. 4L80e fit in 3 Montes that I personally have been part of and no mods to the trans tunnel were needed. RPF takes everything into account, from the crankshaft to the tires on the road. I think if you have ruled out everything else it's time to look at the 2-4 servo and the 2-4 band. P2714 - code 2008. Check trans fuse underhood, and. OTSPARTS 4L80E OVERHAUL KIT 1997-ON THIS KIT CONTAINS ALL THE SOFT PARTS TO REBUILD YOUR 4L80E GASKETS-ORINGS-LIP SEALS-SEALING RINGS-METAL CLAD SEALS ALL PARTS ARE OE QUALITY BY TRANSTEC. I have a Chevelle with 402 LSx with a 4L80E (Pro Torque converter) controlled by the Dominator ECU using the Holley harness. They said when they were going down the interstate it would almost act like you put it in neutral and started revving it let off for a second and it would grab and like it should. Look on craigslist if it needs to be replaced. We're here to help so being rude won't get you very far. GEAR" PID is not switching to 2nd gear until around 63mph or 7440 rpm. There are too many to list them all here, but for the GM cars, there are four popular patterns: a TH350 small, the TH400 larger style, an LS pattern that’s slightly smaller than the TH400, and, finally, a 4L80E bolt pattern for the larger 12-inch converters. Check your pressure if you can find out what its supposed to be at your cooling line. Compatible with most popular GM transmissions, including the 4L60E, 4L65E, 4L80E and 4L85E, and the TCI ® 6x Six-Speed Transmission. We provide a large inventory selection for 4L80E automatic transmission overhaul kits, parts including steels, kits, solenoids, filters, solenoids. It has been sitting a year. The reason the transmission was revving up going into OD was that 4th gear was slipping that much. Are you saying that you do not have 2nd but you have 4th gear. 0l - $2,205. 0-liter Vortec with a 4l80E transmission is the only Gen III/ IV engine that accepts an early GM transmission without a flexplat adapter or spacer. of torque, giving it a max load capacity of 18,000 pounds. This feature is not available right now. The slip yoke in the middle of the driveshaft was a bit dry, but didn't feel sticky. The other great alternative is to run a T42 with 4L80E segments, but this can get tricky. Haven't found Muncie Trans online? Locate Muncie Trans on sale right here with the largest variety of Muncie Trans anywhere online. It would only do it when the engine was cold, it would rev way past 2000 rpms and lurch the very first time it shifted from 1st to 2nd and the rest of the drive would be smooth(ish). It was bought new and had the standard 3 year/36,000 mile warranty. Re: 2000 Year, Chevrolet, C3500 4L80E Transmission? sounds like the second trans guy is on track, valve body wear is a common problem and will cause p1870 slip code. the only thing i can add is that my 4l80e was messin up about a year ago and found out one of the VSS had the wires stripped and throwing bad info to the ecm. 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. About a week ago, it started to slip a little when climbing a hill like sliding into gear and not a good firm shift. Transmission slipping, or gears slipping, is a common transmission problem and a real cause for concern. Automatic Transmission problems of the 2000 Chevrolet Silverado 22 problems related to automatic transmission have been reported for the 2000 Chevrolet Silverado. But when warm it slip in 3rd and go into limp mode and default to 2nd gear. This slipping can go on quietly, and therefore unnoticed. They quit using the 700R4 around 1991 ( I think ) The 4L60E and the 4L80E will not interchange due to the wiring harness and ECM. Self diagnostics allow users of every skill level to fully utilize the EZ-TCU™. 6L Duramax in GMC and Chevrolet pickups since 2001. These vehicles came with the GM spacer and bolts and the flat factory flexplate. 0L (LQ4), 8. The vehicle: 2005 Chev. Re: 4L80E Transmission Problems: Mark: 5-5-09 : I also have a problem with a 4L80 trans defaulting to 2nd gear. This continuous low-rpm converter clutch slip still allowed for improved fuel economy while further enhancing driveability by reducing driveline torsional disturbances. 4L60 (700-R4) Diagnosis Fundamentals. But since the lock up is not used at low speeds I know that the converter clutch probably has nothing to do with the OP's problem. Performance Built MT1 4L80E Automatic Transmission and Torque Converter. This transmission has been built at our state of the art facility using the latest advancements in remanufacturing technology. I have a 4T80E in my 93 Eldo which is the transverse version of the 4L80E which is an electronic rendition of a 700R4. Find new transmissions for sale today on the internet. i raised line pressure 10% across. Below is a list of N54 powered vehicles in the 10's, along with any details such as videos, build links or time slips. Thanks for all the help guys u are all great by the way i'll be getting progress pic up of it soon 16th my money will be here so yyyeeeaaahhhhaaaaa. The operating time is dependent on coolant temperature when the engine is started, and is longest when coolant temperature is 68-86øF (20-30øC). Problem: It has no first gear. They simply aren't accelerating fast enough that the rotating mass really comes into play. 73's and 265/75-16's It has approx. The name only changed to better identify the transmission. I have a 2000 Chevy S10 ZR2 4X4 4. Re: 4L80-E transmission won't shift: shawn w. I'm not sure whether they just changed the fluid and filter, or if they flushed it with a machine. 4L60E 4WD problems with 2-3 shift flare after overhaul? - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Once in 3rd, if the transmission downshifts into 2nd it will just rev the engine and not go anywhere. The truck has enough grunt to pull just about anything, but I am worried about using 4th when towing my rig to Moab this year. Below is a guide to help decipher it's meaning. Like a bat out of hell. 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 will need a flexplate from a older 6. 92 G30 4L80E, hard shift from 1st to 2nd and it feels like it's slipping into d and od any idea's?, also my IAC is not engaging could these be related? thanks in advance Re: 4L80E Transmission Problems. RPF takes everything into account, from the crankshaft to the tires on the road. This is a 95 3500 series w/5. 0L (LQ4), 8. 2-4 band is slipping. The full manual valve body option features a forward shift pattern, and still retains the use of the lock-up torque converter which can be activated by a separate toggle switch or push button (not included). 5 cyles per second, 1994 and up operate at 614 cycles per second and requires a different PCM. 95' 4L80E only got 2nd & reverse. Re: 4L80E 1st Gear Slip. 4L80E Specifications. now have a full-billet 200 from dave husek that is running 10's with low miles so we will see but i love the tranny. If you have "slipping" in first, D4, there is a problem with direct clutch, or line pressure. 4l80e transmission electrical problems C/K Car Forums. to/2PQ60yC 4L60E transmission? Manual 1st or 2nd works. As an aid to the. Many owners of General Motors’ 2015 and 2016 full-size SUVs are not particularly happy with their purchase. The second speed sensor: Make sure that you do run the wires for that second speed sensor for the 4l80e. The other great alternative is to run a T42 with 4L80E segments, but this can get tricky. and the clutches slip or burn out. Put a brake switch in it fixed it. Both 5 speed transmissions that had their own little idiosyncrasies. The mid-length headers use a gasket-less ball and socket type collector for a leak free install. The guy at Orange County transmissions said the exact same thing. I ruined the o-ring seal and diaphragm in my boost control solenoid so I was stuck at wastegate boost, which unfortunately this evening was a whopping 2. Motion of air, coming from the running fan, can make the blades in the second fan turn. This is a computer controlled transmission first introduced in G. As an aid to the. You're better off driving it with a Tech2 on it, and you can get apply data, slip data. As you get into the low 10 second ¼ mile times, you may start to see some differences between a lightweight transmission and a heavier one. The 4L80E (and its successor 4L85E) was the first Hydramatic to incorporate electronic controls — almost all of the THM400/3L80/3L80HD's components are interchangeable. Then, when it shifts into third, and the revs jump up to 4000 Revs. In D3 drive range with Torque Converter Clutch (TCC) engaged, the engine speed should closely match the transmission output speed. Typically, the limp-in mode will place the transmission into second gear and keep it there. We do not turn on the second fan, but place it facing the first. First gear, D1, applies the rear band for engine braking. and the clutches slip or burn out. We offer several sizes so you can match them to your horsepower level. Any help would. The u joints seem fine, rearend is still pretty tight. 1st and 3rd only, will not work in 2nd ,4th or Reverse sunshell is fractured or splines are sheared off.