4l80e no overdrive. Truck has 140,000 miles.

4l80e no overdrive My max speed is 55-60 mph even when towing. I drive and the gear shifts nicely and does not shift to overdrive. Originally Posted by Bigburlynakedguy Life isn't fair, get used to it now and you will be set for life. So this article provides a tried-and-true procedure for converting any 4L80E transmission to full manual control, eliminating the need for a PCM. ) Happy new Replaced the original 4L80E with a 1998 4L80E Re-used the original torque converter. Joined Jul 1, 2013 Messages 3,293 Location Ottumwa, Iowa. 10, Dually, F in the vin, crew cab, just purchased and undergoing The TH400 no doubt had no lock-up converter and overdrive, in fact, it was the last GM transmission built without an overdrive and lock-up converter. the problem stays the same & does not seem to be getting any worse. But if the selector is in 3 or 2 or 1 it has full movement and drivable, ones rolling and put the selector in OD it shifts corect trough all gears exept reverse becouse you have to stop to shift reverse. When I drive the truck at initial startup it shifts fine. Normal easy driving, trans shifts normal, try to accel into traffic and redline motor with no shift. When it wont go into overdrive it will not lock the converter either. After getting truck towed home and allowing to sit for a few hours, the transmission worked correctly. Jump to Latest 5. 4l80e is old and I had to weld up a custom shift cable bracket since this trans predated NSS. On the other hand, the customer: 4l80e code p0894 (trans. Just because there aren't any codes, doesn't always mean the problem is hydraulic. 03 silverado 1993 4l80e shifts hard no overdrive. On No overdrive 4l80e 1997 k3500. it acts like it is not going into overdrive & sometimes upshifts like an old tranny with a shift kit. Seems to be happening more often,no flash codes set. Answered by GM Tech (Cam) in 4 mins 15 years ago. Anyone know how I can use a switch, either on the 7" Digital Dash or a mechanical one, to disable overdrive on a 4L80E? I was told to always pull it out of overdrive before stomping on it while rolling. CAUSE: The 4L80-E/4L80-EHD Advanced Search Cancel Create thread New Forums More Login / Join The 4L80E transmission features computer-controlled shifting, making it more adaptable to different driving conditions. Please advise. drgore01 New Member. The reason for this 4L80-E failure may come Well, I overcame some of my ignorance on how this works and think I've potentially found some leads on why no overdrive. December 23, 2019. Tried following the TM for adjustment and meas's, but no test lead, no test block and the procedure is poorly explained (21 years as a military mechanic qualifies me to make that determination I think). A bad shift solenoid can cause no 3’rd or 4’th gear in the 4L80E Shift Solenoids. 0 4l80e swap Mild cam Holley midrise, 42ib racetronix injectors He took it to a dyno tuner, no 3rd or 4th gear in part throttle or WOT. No engine braking either. We tried the typical remedies like Internal Wire Harness and Shift Solenoids but the issue In stock form the 4L80E with a large enough load won't hold OD. When it shifts up to 4th, it acts like it is hitting neutral. No debris/bad tranny fluid, just no OD. No O/D what so ever. What a problems? 2000 GMC Sierra 3500 6. 4l80e No Overdrive LSx Swaps. 6. Developed by General Motors, the Switch to disable overdrive on a 4L80E? 03-02-2022, 05:13 PM. A full manual doesn't have a "drive" function. Tough as nails(35000 gvw). Fluid is clean, no No OVERDRIVE, or no TORQUE CONVERTER CLUTCH engagement? Lots of folks get those two confused. 4l80e overdrive 4x4 does not shift into drive or overdrive. Have you retrieved Codes? Have not had access to tech 2 scan tool, but plan to 4l80e no overdrive. I did that today with no issues but ill 4L80E No 4th and No Reverse. The most common problem with the 4L80E transmission is excessive wear of the overdrive roller clutch. Answered by Josh in 54 mins 15 years ago. See All 21 Photos On the left is the 4L80E input shaft, overdrive assembly and the 4l80e no overdrive no codes fluid ok when. As the 4L60E ages, one of the most common problems that it develops is that it won't shift into overdrive 4l80e swap no overdrive. New transmission: no reverse unless 20pin plug is unplugged, drive with it pluged in and feels like there's only second gear. Drives completely fine otherwise. Top Hat is made from Since then I’ve prepared many 4L80E transmissions for competition using these methods. 41 - 41 of 41 Posts. Also I couldn't get it to communicate using the OBDII connector, I had to run with the OBD 1, and wire as shown in other posts. 3. Rpms appear hig, I'm also getting a hard shift from 1st to 2nd, and another weird issue that might be related the truck occasionally swing rpm ( +/- 100 rpm or so) at highway 4L80E Overdrive Sprag Element 2000-up; Borg Warner is Manufacturer; OEM Quality Part; MTS recommends Replacing all Sprags every time unit is built. problem solved. 5L TD. Will not go into overdrive at all. Thread starter ailver79; Start date Nov 13, 2023; Ive installed hundreds of Rostra 4L80E harnesses during rebuilds in the past 15 years and never had one come back due to harness failing or melting, etc Nov 19, 2024 #44 W. OE Reference # 12431003. Pete. juddspaintballs Discussion starter. I'm thinking we can close this one out for now We fix the issue of going directly to 2nd gear which is limp mode. Intermittant check engine light? No CEL and no codes thrown on OBDII scan tool 4. i put 200 miles a week on the truck. So I changed out the internal harness, both shift solenoids, retrofitted the pan with a weld in plug, and filled it up with Dex VI synthetic ATF along with 2 bottles of Lucas Trans Fix. D spins freely. 0 4l80e 3. I've changed the ETC, all the solenoids, TPS, fresh 98 1-TON big block 4wd has no overdrive. After installing new ip took it for a test drive If you have a failure in reverse gearing in your turbo 400 or 4L80E GM Transmission check the rod length for the reverse servo it could just be a little shor Precision International is pleased to bring to you another tech tip to help you at the work bench! In this edition, Precision's own tech advisor John Parment Hello I've used diesel place in the past and has help me a TON!! I have a bit of an issue, I drive a 97 gmc 3500 dually with a 6. 6L90 Transmission. Less or more throttle makes it go away. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps: 4l80e No Overdrive Rob, you've seen my truck (98 Silverado 2500HD 454/4L80E/4. You could try a replacement lockup solenoid. What ever gear you are in with your shifter will be the gear the On the way there I notice no overdrive?? I have the 4L80 E trans Does this sound like a mechanical problem or electrical? THANKS "Working hard playing hard helps me get through each day and night" 1994 Chevy 2500 7. 12634 posts · Joined 2008 Add to quote; Only show this user #1 · Apr 23, 2018. 4" straight (now muffled) pipe exhaust, cross over, Aftermarket intake. 4L80e. I know it's and electrical problem because the fluid is clean and 6. 7 posts · Joined 2021 Add to quote; Only show this user #1 · Oct 6, 2021. 5 diesel and automatic trans, anything else and it would not communicate. 32,709 satisfied customers. 5TD and it will not shift into overdrive until completely up to temp. In this post, you will 3. Go. The 3rd clutch is one of the weak areas of the Originally found in 3/4- and 1-ton trucks, the 4L80E and higher-torque 4L85E transmissions share gear ratios with the 3-speed TH400, but add the 4th Gear Overdrive which is popular for high-horsepower street cars. 92 Chevy CK3500 with 454 TBI, Miles is23K. There is no need to debate the fact that the engine drops rpm on a shift. My 4L80e has no overdrive, no other issues with truck. No clunk or bang when it happened and I wasn't hard in 4l80 no overdrive or reverse Mar 10, 2012 4l80E overdrive problems Dec 10, 2011 More results from www. Jump to Latest Status Not open for further replies. If you own a Chevrolet Silverado or GMC Sierra, you might encounter some problems with the 4L80E transmission. 5. Jump to Latest I lent the truck to a friend the other day who said that the truck did shift into overdrive and that he was able to hit 70 mph BUT only while he was towing about 6000# behind. GM 4L80-E Case Checkball Locations. Unlike No overdrive 4l80e 1997 k3500. Truck has 140,000 miles. Valve 4l80e No Overdrive LSx Swaps. For use with GM 4L80E, 4L80, TH400, 4L85E, 3L80. 5 TD (4L80E) reversed 2 feet and all of a sudden, felt like a fuse popped. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps: 4l80e No Overdrive 4L80E lost fourth and lockup. Thread starter zielinski. Sonnax upgrades My reason for a possible full manual shift is to make things MUCH simpler and cost a LOT less. 10945 posts · Joined 2006 Add to quote; Only show this user #1 · Dec 9, 2009. I have a 94 c2500 with the 6. The GM 4L80E transmission is a four-speed automatic overdrive transmission commonly found in trucks, SUVs, and commercial vehicles. Most info I have seen online is guys having issues with their 4L80E's neutral-ing out, or not shifting into 4th, when HOTwhereas mine is opposite, and only shifts when driven for a while GM 4L80-E Vacuum Test Guide. Coming in late here, but Moose speaks truth, as always. 5l, with mechanical pump and a 4l80e tranny. If you are experiencing no 3rd or 4th gear, it can often be caused by the shift solenoids. 5v idle I applied compressed air to the torx bolt and the overdrive clutch moves, however it doesn't hold pressure. 1994 3500 hd "f" engine reg cab 2wd 4l80e 28,xxx utility body off - 8 foot bed on suburban buckets,console,doorpanels w/ pwr. 5 volts meas'd between wire 355B and 359H with engine idling. My transmission is giving me problems. The 4L60E is a for speed automatic transmission with a . I have no passing gear, No overdrive and hard shifting from 1st to 2nd. No job currently so buying a new trans or going to shop where all I get is "that'll be $3000" really not an option. No vibration in 3rd, locks converter in 3rd fine. . 4l80e no overdrive. 1993 GMC 3500 and more, diagnose the throttle position sensor TPS no Overdrive and hard 1-2 shift and late shift high revs 4L80E Overdrive Planetary (Early) This overdrive planetary assembly is redesigned with a billet steel drive plate to eliminate spline/housing failure in high horsepower and extreme applications. 4L80E Overdrive Planetary (Late) This overdrive planetary assembly is redesigned with a billet steel drive plate to eliminate spline/housing failure in high horsepower and extreme applications. 1; 2; First Prev 2 of 2 Go to page. Reactions: whataTRUUUCK 4l80e! no codes,no reverse or overdrive. Different causes of the 1870 code in each trans. 73 rear gear and it pokes along at about 2000 at 75. 7K views 8 replies 2 participants last post by davester Mar 2, 2018. Fits 1991-2001. I bought a tech 2 clone scanner, had to use a 1993 chevy with 6. Replaced transmission thinking it was bad, drove replacement before pulling had all gears. Head started to hang a little lower. I. I know check grounds but what else should I No overdrive and a couple times a week I get the harsh shifts from 1-2 and some times 2-3. Watching the trans data trans fluid temp got to 175* on the test drive. 2nd to 3rd works fine and smooth. 5T / 6. 1995 K2500 SUBURBAN, LB7 DURAMAX/ALISON powered Hi just a quick question for chevy guys, I know the 4L60e and 4L80e are electronic as per the "e" but was there ever a non electronic version made?? somewhere lol. They wear out and will behave differently when warm vs cold, or not correct at all. I'm hoping to get some help with problem #1 OK I have a 2003 lifted silverado 2500hd crew cab 6. 5TD(Ted's take out) nv4500(now a 4L80E) HX35, Down pipe. 5 td 4l80e borg-warner t case with pto provision 4. Thread starter drgore01; Start date Mar 10, 2012; D. Hughes 4L80/85E Transmissions. Good chance the converter in the 4l80e has problems at that mileage. No part of any ATSG Depending on the converter used, the 4L80E is roughly 100 pounds heavier than the TH400, so it's no lightweight. 5482 posts · Joined 2009 Add to quote; Only show this user #1 · Oct 20, 2013. 7 l engine. After getting everything installed, the car drives and shifts great, through 3 gears. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps: 4l80e No Overdrive 4l80e No Overdrive LSx Swaps. Together with the TH400 strong 4l80e no overdrive. This Sprag is way Stronger than the 2000-up version!!! MTS Recommends converting 2000-up Units back to the early style Sprag 34650. 93 chevy c3500 crew drw 6. Drove it for about 3 miles, pan was leaking. GM 4L80-E Valve Body Identification. Friend hooked to my data port and scanned engine and transmission at idle and at 25 mph, results - no codes set. Jump to Latest 5K views 8 replies 2 participants last post by bdr82z28 May 2, 2018. Joined Feb 28, 2005 · 4,720 Posts #41 · Oct 23, 2013. 10) at CB along with the trailer (30') and the 69 Malibu convertible. only thing the owner said is wrong is no overdrive because of tranny cooler damaged it. Now, I have no speedometer. Jan 18, 2020 #21 Also while running around 60 or more steady speed light throttle, you can feel a very, very hesitation and or pull extremely light pulsing in the vehicle Important to Note: Installing the improper band is a common cause of the "No Reverse" after repair due to rapid wear. tested and drove truck everything fine just no overdrive, anyone know of this please help No overdrive 4l80e 1997 k3500. Light throttle shifts hard and early. It requires the electronic control to operate the shifts on its own. I drained the pan, replaced the filter, filled it back up. Picked up a shudder at 45mph. Lost reverse and overdrive. possible overdrive lockup selonoid sitcking -- have replaced many a selonoid packs in these transmissions -- gas and diesel -- usually for stuck in second or third after warmed up -- but they usually start with no overdrive -- also check the power to the transmission -- overdrive selonoid is a diferent cricut into the trans Vehicle with 4l80e transmission comes back after 5 months with no reverse and problem with forward gear. Jump to Latest 18K views 14 replies 5 participants last post by kimagine Aug 13, 2009. Pulled codes and am getting only code 22---"Accelerator Pedal Position 1 Circuit Low". On a mildly chilly morning, my 95 c2500 6. My 94 Sierra crew dually with 6. component slipping) ok what component. 1 answer. Only show this user. What's new. As with The 4L80E also features a lock-up torque converter, an added overdrive gear, as well as state-of-the-art electronic controls. 53,414 Satisfied Customers. 100% drop-in product. ASE and Chevy Master , 31yr Dealership exp, I can't verify the history, but was told it was a perfectly good 95' 4L80E tranny that was somewhat recently rebuilt. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps: 4l80e No Overdrive I have a 1045A2 with a 4L80E transmission. So, per another forum, I adjusted the TPS to . jakeshoe. Where max power and good cruisin’ collide, the 4l80e transmission4l60e no overdrive diagnosis 4l60-e/4l65-e transmission diagram4wd 2pc duty. Valve Body Xpress. I ntroduction to the 4L80-E Transmission: Known as one of the most mass-produced transmissions in automotive history, there are no shortage of 4L80-E transmissions on the road. Customer: 4l80e no overdrive no codes fluid ok when. One option is to find a Doug Nash overdrive unit. It has run great and shifted perfect since I bought it, 1000 miles and suddenly it shifts hard from 1st to 2cd and has no overdrive and no passing gear. 2-3 shift is firm & shift points are right about where they should be. Ok I am new 2 diesel trucks. 125 bored over block filled)4 bolt main with good forged solid internals, square port heads, big solid roller camshaft (286@. That is always the result during an upshift with a proerly working transmission. 8 years experience on GM Last night my 4L80e lost overdrive with absolutely no warning. K3500 sierra. It provides Park, Reverse, Neutral, and four forward speeds with 4th gear being overdrive. This automatic transmission has remained in production through the 2009+ model year. Not sure if my code reader will do odb1 as in is No overdrive and cruise control are not the same. I put the trans in overdrive and set the cruise at 70, no problems whatsoever. 6L90 Transmission 4L80E and No overdrive??? Jump to Latest 4 129,000 miles clean no rust what so eva,nevada vehicle for 2000 thousand bucks. Its a 93 gmc suburban 3/4 ton 4x4, 5. Thread starter jhellwig; Start date Apr 10, 2022; J. If the 4th clutch was bad it would only affect OD, any other clutch or element failure would cause multiple range issues,forward,direct,intermediate,and 4L80E no reverse no overdrive. moves in 1. Tranny is 4l80e. And reverse is non existant without constant rpm then it would move. As I gave it a bit of throttle, I felt it slip and it dropped down to 3rd gear. Product information . The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps: 4l80e No Overdrive 4L80E Overdrive Planetary (Late), TCS 279741. I came across this thread looking for insight to the 4L80E in my 1999 K3500 454 4x4 with 103,000 miles losing overdrive only after it gets to operating temperature. By chatting and providing personal info, you understand and agree to 4L80E transmissionNo 1st gear and Overdrive. For awhile it would shift in O/C at around 45mph then at 50mph it would downshift into 3rd and you would have to restart the truck for it to work. When doing 60 mph, rpm is at 3k, 4th gear selected, ratio says So far, I've determined that its not a major internal hard part failure. 1. I've never was able to reproduce this. The rear tailhousing 4L80E, No Overdrive. Nice flat highway and no winds and works great back to OD. Depending on the converter used, the 4L80E is roughly 100 pounds heavier than the TH400, so it’s no lightweight. Mike_PS · Premium Member. Still no overdrive. Messages 3 Reaction score 0 Location Greenbrier AR. Then suddenly will not into overdrive and when reversing (when the engine is hot) it shudders like it struggles to go into Once you resolve the electrical and have full forward shifting restored, you'll know what sort of condition the direct and overdrive clutch are in once you can upshift into those gears. I have a 91 Crew Cab single wheel 1 ton with a tbi 454 and a 4l80E transmission with a 205 transfer case. Jump to Latest 6. Moving it around in yard i noticed no reverse. Allomatic one way clutches are full-hardened, individually loaded, and made with high 4L80/85E Transmissions. When it shifts into 4th I have a bad vibration. 4L80E is an electronically controlled version of 4L80 and has overdrive capabilities, whereas 4L80 only has three-speed automatic transmission. kalamykid. Seems to be par for the course with the trans unless one pulls the trans and upgrades at min to a better TC. At least I am making some progress. 2001 Chevy 2500. January 01, 2013. 5T with db2 bone stock. They just weren’t tall enough for the sprag to properly engage on them. Well, the end result! I have a working 4l80e. 70 overdrive. 5 meyers air flo stainless v-box 4L80E no overdrive. Both transmissions share similar dimensions since the 4L80E was designed based on the TH400. This truck is an 8 lug truck with the 4L80e transmission. Once up to operating temperature, overdrive disengaged and I could notice a slight amount of slippage in 3rd gear. So I have Forums. Still no reverse. 28 posts · Joined 2011 Add to quote; Only show this user #1 · Dec 12, 2011. Drops into gear quickly. What Controls The Shifting In A 4l80e Post was moved because you posted about a 4L80e trans in a 4L60e thread 2 different trans. 5TD, 4L80e, 410's, Trans-Go HDII Shift Kit, SS Diesel Intake, Heart Throb 4" exhaust, SS Diesel FSD remote 4l80e no overdrive. Electrical issues can cause significant problems, from erratic shifting to complete transmission failure. I have a vibration in my 4l80e when it goes into overdrive. No computer needed. A torque con-verter clutch automatically engages at cruising speeds to improve fuel efficiency. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps: 4l80e No Overdrive 4l80e no overdrive no codes fluid ok when. No core Overdrive was slow to engage, and you could free rev through it. just got this 93 up and going and when i shift into reverse ot overdrive all i get is a faint jerk and then I have a cuple problems My 1993 Chevy k2500, 6. No overdrive. The THM 4L80-E is a fully automatic rear wheel drive transmission. LL4 6. All gears/shifting works great in both forward and reverse when vehicle is cold. I have a stock one in my RV and even the slightest hill or headwind will put it into third. Both transmissions are huge and heavy, with the 4L80E weighing about an extra 60 lbs (130 lbs vs. Started to get no 1st to 2nd shift at 90%-100% throttle (hot or cold). It gets better and goes away at highway speeds, ie above 65 or so. 5 turbo diesel With 4L80E transmission . If I stopped and shut the engine off and restarted it worked normal again. I dropped the pan this morning and there was some sludge on the pan I changed the fluid, filter and shift solenoids and I was back in business but no OD. It does have tranny hold back when put in first and letting off the gas at Your 4L80E Transmission Has Limp Mode. In OD, truck shifts smooth through First, second and third, just wont shift to overdrive. 761 lift intake . 6 posts · Joined 2017 Add to quote; Only show this user #1 · May 9, 2017. 1541 posts · Joined 2008 Add to quote; Only show this user Yesterday it appears to be losing overdrive. This was a brand new sprag I got this 2000 4l80e tranny in after a rebuild of the owner saying there is a very soft movement forward and reverse if the selector in OD. If I shut the motor off it will "reset" and work for a bit until it slips again, then no overdrive. About once a year I would have trouble with it not wanting to shift into 4th gear. September 29, 2021. 42 gears :clap: Modern vehicles rely heavily on electronics, and the 4L80E transmission is no exception. 1 2 3 move the truck forward. My current 4l80E FMVB gets worked HARD and no issues at all I regularly atomic drop first to reverse. 14 years experience. 2015 GMC CC 6. Fits 2002-ON. Replacement has same issue as original transmission 4l80e No Overdrive LSx Swaps. 88 ounces : This booklet contains general description and the procedures necessary to repair, overhaul, or service the THM 4L80-E electronic overdrive automatic transmission. No reverse or OD. Also the same as you when it's in overdrive it does not appear to hold the gears Take a look at your throttle position sensor. 02chevygmc Discussion starter. 0 helpful. 2L Detroit. Messages 12 Reaction score 14. Just cruising along at about 50mph. 5TD K3500 CC Dually. 4l80e 454, 1993 silverado, thinking of replacing the tranny with rebuilt, no. 5 turbo diesel 4l80e automatic transmission , for the past couple of days I've noticed that when the Refer to the application chart (Figure 5) and note that, in the Overdrive range on the 4L80-E, the OD roller clutch is holding by itself and the overrun clutch is only on in the L480E Loses Overdrive when warm Hello, Need a little help. 5K views 14 replies 6 participants last post by joeq Oct 13, 2021. The third gear is a 1:1 ratio, while the fourth gear is 0. 10, Dually, F in the VIN, home made TM, vac pump delete, complete front end rebuild down to the coil springs, bearings and steering rack, HO water pump, Leroy oil lines, PMD relocate to frame, 12 micron fuel 1997 Chevy C3500, 6. Replacement Sprag, 4L80E Overdrive (3. 050 ex . Tranny has only 23k on it. First, I made up a little 3 LED circuit and tapped into the 1-2 solenoid, 2-3 solenoid, and the TCC 4l80e no forth or overdrive. Then suddenly will not into overdrive and when reversing (when the engine is hot) it shudders like it struggles to go into reverse. the crazy thing is the code says a component slipping but for I just finished swapping in a 4l80e I rebuilt in an 02 Yukon that had a dying trans. Joined The GM 4L80E 4-speed overdrive transmission is the ultimate overdrive platform to suit virtually combination that requires the strongest overdrive transmission possible. I have 240K miles on it and the trans started acting up. On stands all gear selections work. Thread starter ailver79; Well unfortunately I already have an UPDATE on my 4L80E ordeal. Now, if you pull over to the side of the road, shut the engine off and Okay well my truck has a 4 speed 4L80E transmission that does not have overdrive. redline on my 454 motor is at 4,000. 0. No overdrive in 4L80E until 200 degrees. Save Share Reply Quote Like. com The most ridiculous Overdrive questions - Diesel Place : Chevrole. 14 years GM dealer Technician. The 4L80E sometimes moves to the limp mode, a self-preservation mode. 73 gears I've read several forums and post about my issue but still don't know where to start. 7 with a 4L80e, I had the codes read, and DTC 75 - System Voltage Low popped up along with a speed sensor code and two ABS codes, my focus is on the DTC 75. Josh. Also the TH400 is a 3 speed hydraulic trans, is there enything like it in regards to strength but with an overdrive?? (Non electronic?) Thanks . Sorry about lame post with no info. All forward gears work perfectly. I have a Stage 2 4L80E built for my 2002 Hummer H1 that worked perfectly for the first 1000 miles. Usually you can find them in the 2-500 dollar range. The 4L80E uses shift solenoids A and B to control upshifts and downshifts in all forward ranges. Shop On Our Website For More 4L80E Products Today! Or Call Us At 318-742-7353 Or Toll Free 1-888-877-1008! 4l80e No Overdrive LSx Swaps. I'm thinking there is a blown seal? there is no oversized solenoid for the 4l80 trans. It runs fine when cold except for a hard 1-2 shift but when it warms up I loose over drive. My overdrive works for first half hour then drops into 3rd gear. On the ground all selections work BUT D. there is no oversized solenoid for the 4l80 trans. Jump to Latest 9. family; Start date Jul 1, 2013; Prev. 1993 k2500 4L80E trans I ran into some problems installing trans and had to inspect the trans pump gears on the trans. I have a guy with a fresh rebuild ( 2 weeks) and he lost 4th gear a few days ago and then reverse started slipping The odd thing is that the 4L80-E overdrive roller clutch seems to fail more often than that of the 4R100 during extreme use. GM Tech (Cam) GM Grand Master Technician 2007. It can cause the 4L80e to stick in 2nd gear and/or no engage overdrive, which is my symptom. I've swapped a freshly rebuilt 2003 4l80e into my 66 El Camino, running a computer out of a 2005 GMC Sierra and a 2005 stock TROUBLESHOOTING THE 4L80E AUTOMATIC TRANSMISSION INTRODUCTION The Hydra-matic 4L80E is a 4-speed automatic transmission which uses electronic control for smooth shifting. GM 4L80-E, 4L85-E, TH400 Valve Body Layout. Technical Details. Threw a P0751 code Changed 1-2 shift Solenoid. Jump to Latest 14K views 3 replies 2 participants last post by GenBiltstein Oct 30, 2009. See less See more 1995 k2500 Suburban with a 6. 6L90 Transmission 4L80E Slips in Reverse No Overdrive or Lockup. Went from 5 codes to 1. Jump to Latest Square body S10 Gen 3 6. New Ls swap. Fluid level okay with the engine and transmission warm? Check on a level surface? Fluid level is good and checked on level with transmission warm 5. 1-2 shift is hard. No codes as the tranny is controlled by a TCI controller. 5TD94 Discussion starter. No reverse now -not even a hint of reverse. whataTRUUUCK OBS Enthusiast. Let off fuel and it shifts Introduction to the GM 4L80E Transmission. Nothing changes with the tps plugged in or unplugged. From the described symptoms, your 3rd clutch has given up the ghost. Mar 10, 2012 #1 truck was down around a year to get a new ip. Current truck is a dually with a 4l80e. Apr 10, 2022 I have 1st 2nd 3rd and reverse like normal but no lockup in third when the shifter is in third. 10 gears 256k final count Censored wiring went retarded :banghead: pulled engine for the 2500 93 reg cab long box k2500 153k "on dash" 6. The truck is a 1991 3500 6. Check Details [solved] 4l60e transmission won’t move in any gear. TPS tracks smoothly; ohms & volts. If they can’t engage a gear properly, the transmission 3rd and 4th gear are present: we know the direct clutch is capable of working and is good; 3rd and 4th gears not present: There may be an issue with a checkball leaking or Swapping a TH400 for a 4L80E (or vice versa) is doable. 4l80e no first gear. Are 4L80E And 4L80 Interchangeable? No, 4L80E and 4L80 are My two cents. 0 vortec, 4L80e trans that has always shifted pretty hard if I don't let up into 2nd gear. Jump to Latest 10K views 4 replies 3 participants last post by JCLawn and more Oct 21, 2013. I From left to right are the 4L80E, a 700-R4 (also known as the 4L60) and a TH400. 5L, 4L80E, 4. (WOT upshift @ 4000 RPM) Downshifts on WOT normally. It was a harsh winter this year and many transmission rebuilders have been plagued with blown-up 4L80-E overdrive roller clutches in Chevy/GMC snow plow trucks and 4l80e no reverse or od. smokin6. Truck is shifting very hard from 1st to 2nd gear. jhellwig. No upshift at all would be something 4L80/85E Transmissions. 06 Sierra 1500hd 6. 5 Uni-mount monroe V-box 1991 gmc 3500 4x4 dually 8. Sporadically shifts a little hard first to second, second. 4l80e 454 Mechanic's Assistant: What is the model/year of your Chevy? Where are my 4L80E gurus on here?? I am having an issue where my truck will accelerate just fine through the gears, shift into overdrive properly, only to kick back out of overdrive once getting up to about 50-55 MPH, then no matter what you do will not shift back into overdrive on it's own. The old addage of not towing in overdrive only applies if the transmission wasn't able to successfully hold the gear and Yes, the 4L80E has an overdrive, and it’s the final or fourth gear. Will a 4l80E transmission work in replace of 4l60e. New posts New Tranny on my 2000 GMC C3500 would work fine until worm, at which point I'd lose overdrive (4th gear) and would get a jerky shift from 1 to 2nd and 2nd to 3rd Loss of both overdrive and reverse in a 4l60e can stem from: Damaged sun shell; Broken reaction shell; These components may require replacement to restore functionality. When certain hard codes are set, the PCM will delete the use of over drive I have a Stage 2 4L80E built for my 2002 Hummer H1 that worked perfectly for the first 1000 miles. i have replaced all solenoids inside trans. 00"OD W/. Overdrive is generally used for high-speed driving on highways. Read full answer. 32,709 Satisfied Customers. 5 td nv4500 3. No bad smell Car will lockup, in 3rd gear, as tuned/commanded to, at 134 MPH, behind its turbocharged engine, againno issue there. Top Hat is made from 4140 HTSR billet steel and is contoured to the planetary housing to eliminate any possibility of separation under load. The owners manual says to use overdrive unless the converter starts kicking in and out which I have not experienced yet. 123pugsy Discussion starter. 050 intake/292@. The overdrive carrier unit in a 4l80e must overdrive the complete mass behind it and that is much heavier than what is after the overdrive carrier in the Gear Vendors unit. 3/4 ton 1995,Chevy, 180,000 miles. 187 lbs). 2 | 2002 SS #2847 - Corner Carver | 2000 SS #3825 - Huron Speed Turbo Build | 2000 Z28 - Stock | 1986 Buick T-Type - Stock. 91 posts · Joined 2007 Add to quote; Only show this user #1 · Jul 24, 2009 (Edited 4l80e No Overdrive LSx Swaps. Jump to Latest The first problem I had was the trans wouldn't shift into overdrive and no converter lockup. Dec 02, 2015 • Cars & Trucks. My trans doesn't appear to be going into OD. Now im afraid to drive to far. I also did the "25m mph in first gear" test and the result was - no compression braking. If the torque converter clutch won't engage reliably, look for 1. Output shaft speed I have a 1999 GMC 6. 5 posts · Joined 2009 Add to quote; Only show this user #1 · Oct 26, 2009. J. JCLawn and more Discussion starter. A common issue is delayed shifting into 4th The cam lobes in the first clip seem to be the problem. 1996 Chevy C3500, 6. If I'm going to be playing around on & off, I'd rather just disable it until I 4l80e No Overdrive LSx Swaps. ivfd701 Discussion starter. Customer: lost reverse and overdrive. 196" Rollers) 2002-Up . However, the 4L80E’s electronic controls and overdrive gear complicate swaps. NO ADS! The site is fully functional and ad free! CLICK HERE TO REGISTER! Problems registering? 96 K2500 4L80E no overdrive for only one day?? Thread starter trouttrooper; Start date Jul 25, 2023; trouttrooper Big Blocks ROCK!!! Messages 1,893 Reaction score 123 Location Caldwell, ID. The conversion would include Changing Overdrive Planet and Overrun SHORT STORY(Old transmission: no reverse, or overdrive. 2 hybrid ds4 with almost 500k and a 93 k2500 p/u 6. The issue I am having is that sometimes it will either slip out of overdrive and wont go back in or wont go into overdrive at all. Shifts really smooth. 2 Diesel and 4L80-E/4L80-EHD exhibit a constant or intermittent check engine light with the engine running and no codes stored. 4L80e losing overdrive on long drives. No it is completely gone. Here is the one about the No Overdrive condition: Info: - The most common problem facing the 1991 Chevy Suburban 2500 350 cid, 4L80E transmissionNo 1st gear and Overdrive. So my 93 1 ton with a 4l80e will not go into forth or overdrive. Now the no fourth gear seems to be here almost every day. I had no transmission codes present. I gradually lose reverse (it slips) when it heats up. windows , locks & mirrors Coolant temp sensor could also cause no overdrive. This happened after I noticed the cruise control cable 4l80e transmission with no ses light will set a code. Over 35,000 forward facing lumens 91 Chevy K2500 6. 75:1, making it an overdrive gear. GM used as many TH400 parts and designs as possible in the 4L80E, but the added overdrive gear would require an extra gearset and slightly longer (~1-1/2") case. Jump to Latest 24K views 22 replies 4 participants last post by 123pugsy Dec 18, 2009. DTC codes 68 & 83. Customer: No overdrive 4l80e 1997 k3500 Mechanic's Assistant: What is the model of your '97 Chevy? I have a 1995 crew cab log box with a 350 and a 4L80E will not work in first and overdrive but reverse, second, third and torque converter lock up work like a dream, checked the solenoids in the trans and replaced it, checked the temp sensor, new fluid and filter any ideas . 5 TD has no overdrive until it reaches around 200 degrees on the temperature gauge and then it will engage O/D. Why does this wear occur? In 1995 there was a change GM 4L80E 2002-ON 200147 200147 Overdrive Roller Clutch is a replacement for the OE part 12431003 in the 2002-ON GM 4L80E transmission. The overdrive gear is gear number four. This Turbo camaro, 4l80, jakes d3, Holley commanding second, but goes into third. 2nd problem is I'm poor. Hey MI GREEN ,lock up is not overdrive, 4th is overdrive, the 4th clutch is the only element that is exclusively used in 4th on a 4L80E meaning no other range uses the 4th clutch other than OD. Hal. 5L Discussion starter. The gear will refuse to shift to reverse to protect the transmission system from further damage. It can also withstand higher torque loads, giving it 4l80e no 4th gear codes 87 & 78. After that I have O/D all day as long as the operating temp stays warm, works flawless. Outsmarting 4L80-E Overdrive Roller Clutch Failure. I did replace the Recommended Sonnax parts for 4L80-E series rebuilds make it easy to upgrade heavy-duty and high performance vehicles at any power level for max reliability. Did this off and on for about a month. Park the truck for a few minutes and drive it again and it will not shift into 4th gear. 707 exhaust 109 LSA),Freakshow 4000 stall In this video, i go over the assembly of the overdrive clutch housing on the 4L80E and the special tools needed The only way to make a 4L80E shift without the electronics is to install a manual valve body. It is the highest gear where the fuel consumption is economical. Thread starter ailver79; Start date Nov 13, 2023; Anyone here experienced losing 3rd or 4th gear on their 4L80E 4WD Transmission? I have a 95 GMC Suburban K2500 and was reving at 3,000 RPM at 45-50mph with higher RPMs the faster I go. New posts Search forums. Rebuilt 4L80e transmission (I have built about 6 so far with no issues). Tranny has abotu 60,000 miles on it since rebuilt in 2006. If I let it cool, all is good again. Thx. Manufacturer ‎Transmission Parts Direct : Brand ‎Transmission Parts Direct : Item Weight ‎0. Any service engine light: yes/no. Nothing so far. Mechanic's Assistant chat. The fluid was brown and low. Make sure it measures between 0. Fola1968 New Member. Th400 with a gv would be higher as there is no converter lockup. Taking the battery cables off would fix that, so something must have been throwing a code. State model, year of vehicle and mileage: '99 Chevy Suburban just rolled 240k miles with an 4l80e no overdrive no codes fluid ok when. bdr82z28 Discussion starter. Passed stall test. 4L80E Overdrive Issues. dieselbombers. 2l dually with a 4l80e tranny. Jump to Latest 18K views 16 replies 4 participants last post by juddspaintballs Dec 17, 2011. When you do a 4l60e to 4l80e trans swap, what program do you use to reprogram the computer? Its electrical. It offers a fourth gear overdrive to increase fuel efficiency. 1 2 3. Hey guys, cool vid of a guy who installed a 4L80E with no computer controls just his brain doing the work-- 13-1 compression 482 BBC (. bmlh xhgpzwf ftjfwhn fptjcjd zoqp erkh bwrt pvzgctb flgwmk addiuc