6l80e wont go into gear. My truck did the same thing 6l80 will .
6l80e wont go into gear. After driving a while it loses 1st gear.
6l80e wont go into gear he was out and about and suddenly had 3 or 4 hard shifts from take off at red light/stop signs and whatnot. 3L crew cab Z71 back in March and I loved the truck from day one. 3500 6l80e transmission wont shift 09 G8 gt with lsa, 80lb injectors scaled (ifr afr method), 3. I made a mental note of this because it will help me when setting up launch at the Drag Strip. I'm not sure if I could hit the gas pedal and get it into 4th, but I don't want to do damage and find out. Also at speed the engine have an rpm surge of around 200rpm, up and down, seems to be the torque converter locking and unlocking. 3. Throwing it back and forth from Drive to Sport A parking brake that’s stuck or a brake line has been crimped and won’t let pressure out of the system can cause the brakes to get stuck. Joined Jun 15, 2020 Posts 12 Reaction score Light turns green, I go nowhere. Also, when in park, the car doesn't roll. When this happens, your Escalade won’t move in drive. Sometimes when I come to a stop, or am crawling in traffic or in a parking lot, the truck will shudder into first gear as it’s downshifting. It runs and shifts fine 1-3, but on the 3-4 shift it just revs like it's in neutral. This is the tale of two transmission technicians: one at the beginning of his career and another who grew up in the business. If you end up with a bad sprag, the 4L60E won’t be able to shift into 3rd or 4th gear. Patterned failures for this unit have been covered in previous Reaching out into the HPTuners universe for help and guidance regarding some electronic trans nonsense. Recently I had the transmission in my 2011 Silverado go out. Hey everyone, got another problem with my 6L80. I was able to go in reverse with no problems at all. It essentially just revs or pops out of gear and into neutral from a stop. load, angle and shear force. 13448 posts · Joined 2003 Add to quote; Only show this user GM 6l80e from dealer 1786. suddenly lost all acceleration on the highway, got it to my shop, I’ve got no gears, not in manual, 4wd, reverse forward truck will not move under its own power, I scanned it, it was throwing p-2732 (solenoid 5 stuck open) I did a hard reset (negative When installed upside down, the input carrier will drop right over the sun gear, spin in place and feel normal for the most part. 3 3. The trans ran fine for a couple days, and today it lost reverse after sitting overnight. 3L, 6L80e, 4X4, HD Towing pkg If you can't fix it with a hammer, it is an electrical problem. Justin. I wasn't born in Texas but I got back here as soon as I could. Any ideas what can this be? I have a 2012 2500 chev silverado HD LTZ 6. Flev Discussion starter. The problem was that 1st & 2nd gear worked absolutely perfect, clean shifts, even power, but as soon as it shifted into 3rd it felt like the transmission was slipping. 3L 4x4 Avy Recently flushed transmission with new fluid at 340,000kms 370,000kms currently C6 Corvette General Discussion - Hard to Shift into 1st Gear - Folks, I have an '07 vert M6 with 63k miles. repeat. This could be caused by various issues within the transmission, such as high temperatures or worn-out gears. 1L Vortec Motor - Holley Terminator engine management - Runs great 2008 Escalade - 6L80 Transmission - TCM2650 There is a stop in the linkage so it won't go into manual unintentionally. A parking brake that’s stuck or a brake line has been crimped and won’t let pressure out of the system can cause the brakes to get stuck. Just pull the lever towards the steering wheel and down. Won’t go into First Gear, the vehicle doesn’t move. In addition, instead of shifting into First Gear before you come to a stop, the transmission will now shift into First AFTER you’ve stopped, causing a physical jolt. it will not cause an issue as it is a known problem and this is a cure for it When a GM 6L80/90 transmission finds its way into your shop with a complaint of no forward or reverse movement, or is slipping badly in all ranges, initial inspection may reveal a cracked or split sump filter (see Figure 1). Some components might be easy to fix, while others might be more complicated and require immediate professional assistance. Transmission in gear, Truck won’t move. Both were doing repairs: one had installed updated seals for an intermittent 2-3 flare, while the other installed an upgraded clutch pack. The truck will drive normally for short period of time, then trans slips into neutral, and won't go into any gear until the motor is turned off and restarted. Feels like clutch slipping and then grabbing once the RPMs are high enough. Mechanic's 2010 Silverado 4x4 has 5. No check engine light but I pulled codes P0700 and P0741. Cadillac Escalade ESV, 2007-2015 Cadillac Escalade EXT, 2007-2013 Cadillac Escalade, 2007-2015 Truck Won't Go Into Gear (blinking D and R) Z71, 5. It will shift from 1st into 2nd, rpms will rev up, and then it feels like it shifts and locks into 2nd after that. Register or Log In To remove these advertisements. Even with paddle shifters it wont move. Shut off the engine, restart, it works again for a few minutes then no go. It has extra clutch packs in the 4/5/6 drum. Quick Rundown: 2008 Colorado - Full Tube Chassis - Custom Everything - Big Tires - Big Axles - Rock Crawler Gen7 BBC - 8. Delayed gear engagement is a common symptom of transmission problems in Chevy Silverados. 2016 Silverado CCSB 5. Internal mode switch illegal range, which is causing the 3rd gear in Drive only limp mode. It does it every time. This should get you to a higher speed. (Coming soon)| 6L80 Information Thread. 42 Z60/Z82 HD Tow Firestone Ride-Rite Bags AiRaid MIT Diablo inTune i2030 The truck has a 5. It appears to be good. When the vehicle is cold it takes its time shifting from 3 to 4. When I come to a stop, I usually put the stick into the neutral position. Reply. Worst of all, when I’m braking and C6 Tech/Performance - 6L80E stuck in 4th gear - Recently car was running great so we took it to the dyno. . The issue is that my 2012 4wd Tahoe is having really weird shifting points, especially in the low gears and it jerks a lot when taking off. This valve, depending on the position in which it’s stuck, may cause delays going into gear or harsh, chattering type of When I took a test drive, R and D1 felt really good, however while shifting into 2nd(10mph) the trans locks up then drops back down into 1st. the linkage moves but the techm isnt telling the truck to go into any After a little research on the ole' interwebs I found that the 6L80E has a problem with a plastic check ball in the valve body shrinks and gets stuck in the plate. It could probably go for a flush though. 2nd gear needs 1 released and 2 operated. If one of the shift solenoids is sticking, you will go into 2nd, or 4th gear. It provides a direct connection between the input housing and the input sun gear. Save Share Reply Quote Like. I looked at the tune and the temperature parameters to see if the pressures or anything change with the warming We had it programmed at GMC dealer. Within a few minutes though it seems like on partial throttle shifts it just engages 4th way too quick with a little clunk. I did forget to mention that when I go into manual 2nd I hear a light growling like a rrrrrr and when I put it in manual 1st it's louder. Can't go fwd or back. Wondering if it’s a fix or replace. so he had it towed to me. After about 10 minutes of driving like this I fully lost gear and went into a false neutral type situation. 00 plus tax of 142. P2723 P2728 Cause: Possible codes P2723 Sol 5 stuck off or P2728 Sol 5 performance, Very Afterwards, I cannot get it into 4th. Bad Sprag 4L60 E Sprag. The 3rd clutch is one of the weak areas of the 4L60, and it can't be fully bulletproofed (design Just changed the back seonsor (on transfer case) it shifted hard into 2nd, then didn't shift again. a few weeks ago I bought the tuning school course on the 6L80E which helped me fine tune things a bit better, but the problem did not change. Thread starter TonyBrsd; Start date Sep 23, Yep, time for an overhaulI'm assuming you have a 6L80 but if not, situation is the sameFalse-neutral conditions as described, when combined with shuddering is almost always torque converterThe debris you/your mechanic saw came from the converter It has been acting this way for a couple months now and I cannot figure it out. My truck did the same thing 6l80 will If I move the drive select stick (shifter) out of Sport mode and then go back into sport mode and hit the left paddle again usually it'll change the to [1] properly, but somethings like today the left paddle again just put it up into 3rd and then denied any more "upshifts" instead of downshifts. I get no codes on my display and no check engine light either. It will not shift into 4low with the engine running in neutral and stopped, nor in neutral and rolling, nor stopped in neutral with the engine off. My symptoms do not go away after letting the truck sit until fully cold, and they're repeatable. Recently I have noticed that I am having difficulty shifting the manual trans into 1st gear at a dead stop. Low Transmission Fluid. due for an overhaul. Brand new 2014 5. Will it go in reverse, but not forward? If it does, it won’t be low transmission fluid. 3/6L80e, not as slow but still heavy. The shifter will not push forward into the 4low gearing. Maybe start with seeing if you can find the where the shift cable attaches to the 6l80e (you need to crawl under the truck), then, with the parking brake applied, note the position of the lever on the transmission and then shift to other gears using the lever in the cab and go back underneath and see if the lever changed position (or just watch it if you've got someone 2006 silverado sometimes doesn't have first gear. From the described symptoms, your 3rd clutch has given up the ghost. We have already adjusted the TU/TD table to not safety shift up or down until you hit a super high mph or a super low mph respectively to allow more complete manual control(off road race I bought a new 2016 Silverado 1500 with the 5. 2010 Silverado ECRB LT2 5. Diagnosing a transmission that won’t engage in any gear can be a challenging and time-consuming task. It was slipping the 2-3 and 4-5 Shifts. Fluid is ok, no codes. (old one had pinched on install and caused my leakage into the electrical connector). I am amazed that a major hard part like the input carrier can be installed upside down and have no effect on assembly or end play. TSB PIP495F – Flare and/or harsh 2-3 shifts – 6L80 Transmission 2006 – 2009 Cadillac STS-V – 2006 – 2009 Cadillac XLR-V – 2007 – 2009 Cadillac XLR – 2006 – 2009 Chevrolet Corvette – 2008 – 2009 Hummer H2 – 2008 – 2009 Pontiac G8 My friends h2 won’t go into their gear. Fix that, and How do you know when the transmission has failed? You’ll notice the moment of catastrophic failure because the truck will suddenly not move under its power. When you give it some throttle to take off, it slams into gear hard, then it shifts fine until you come to a stop and are at an idle again. When put in reverse it clunks like its engaging, then won't move, no . Parks Works, Reverse works but with high pressure (Slams into grear, with a delay), and Drive starts in 2nd and won't shift (Slams into gear with a delay). I was also able to move in 1st gear with the same whine. Mechanic's Assistant chat. Symptoms Associated with the Problem Unusual Noises It cooled right off after getting into town and didn't think much of it until we went to head back home that evening and it wouldn't shift until about 3k rpm and then it would never go into 6th gear at all. Compensator feed regulator valve stuck. – If the learn procedure does not correct the condition, disassemble the transmission and inspect the 1-3-5-6-7 Clutch (C3) for a delay into Drive and inspect the 4-5-6-7-8 Reverse Clutch (C5) for a delay into Reverse. 3 Sierra and when she came out, it would not shift into any forward gears. no slipping whatsoever. A 6L90 valve body installed on 6L80 is a no Reverse condition. • Compensator feed regulator valve stuck. 6L80 won?t stay in 6th Hi all! Presuming its at close to or at WOT it won't go in or shifts back? If yes, preventing that is something we haven't got access to. Not sure if it it's TCM related or torque converter related. When this happens, your Sierra won’t move in drive. Quite odd, but I've got a transmission guy pulling it out and fingers crossed we can do a partial repair instead of full rebuild. I replaced the Vss in transfercase and the the things you have to go through to be an Expert are Something you have to realize is that 1st gear is already pretty steep in a stock 6L80 so when you throw a converter into the mix (even a 2800) it makes traction even more of an issue. Is this the TCM?. I've got a 1992 chevy 2500 4x4 6. Problem - My Avy went into a neutral like condition and rev'd up with no forward gears but the reverse still works. Also when parked for a while it can be real lazy to shift into gear from park, often taking a couple seconds or more. During acceleration, suddenly shifts into Neutral. When in drive it shifts normally at first. 2013 Silverado 1500 LT, Z71, 5. I was having a shuddering under low load and when I dropped the pan the fluid was black and was covered in metal shavings but the transmission was still shifting and moving just fine. When in drive it stays in 3rd or 4th and bogs and accelerates very slowly. I tried manual shifting and no change No codes. 3 and 6L80e 260k miles Almost always let my engine warm up at least halfway before driving. The shifter did not The downshift solenoid controls the transmission shifting from a higher gear to a lower gear, such as when the vehicle is slowing down to a stop. View Profile View Forum Posts Private Message Visit Homepage Advanced Tuner My 2500HD Won't Shift into Gear! but transmission isn't going into gear at all (i. That shoould be pretty simple. When this happens, your Tahoe won’t move in drive. Symptoms Associated with the Problem Unusual Noises Delayed Gear Engagement. The respective clutch plates and seals should be inspected for wear and or damage and repaired I have a similar problem. But, you should feel the vehicle trying to pull. The truck doesn't go past 4th gear on the highway. See my 6L80E Thread for more info but if that's what's happening, the transmission will need to come out for overhaul. 5TD/4L80E 3. All gears work for a sec and then nothing. I recently bought a 2012 GMC Sierra with 168K miles. After driving a while it loses 1st gear. what happens is, if I'm accelerating with anything more than bout 30% throttle, when I manually shift from 2nd into 3rd, the If you turn on the "Snow" setting it tells the 6L90 to start off in 2nd gear, instead of first. M. It sounds like it bounces off a rev limiter at 6000. Fluid full, clean, no burnt smell 2011, LT 5. got it home and next morning no forward gears engage. The 1947 - Present Chevrolet & GMC Truck Message Board Network > Complaint: By now, most major shops have had enough exposure to 6L80 transmissions to realize that they will be around for quite some time, providing plenty of work. Trying to keep from a rebuild. Mike Delayed Gear Engagement. I called for a tow truck. H. If the gear selector is moving, than it’s time to move onto a transmission problem itself. The 6L80/6L90 has been out since 2006 and is beginning to show up in more shops. Just tried disconnecting and cleaning trans electrical connectors, but problem persists. 224 posts · Joined 2014 Add to quote All right guys I’m reaching out to the experts here for help with my transmission problems. I can bypass by manually shifting into 2nd, and all gears after shift fine. I'd suspect your torque converter is letting go and it's destroying your trans internally Once you start to try to go, there is a delay in it actually grabbing/engaging. 2012 Silverado 1500 with 5. Then, I tried 3rd gear and got nothing. No 3rd or 4th gear (can be driven in 2nd gear): 3-4 clutches are worn out. we'll delve into the causes of second gear sticking and provide practical troubleshooting and repair solutions. Lol. By logging into your account, I replaced the throttle body knowing that a lot of weird issues can come from a faulty one and they commonly go bad. com to open a new question, type “FOR Danny L 2019 Tahoe Transmission Won't Shift. After restart truck will drive normally for short time until problem happens again. I took the problem head on, and decided to swap the trans myself and deal with the programming myself. 00 for a total of 1080. I'd reinforce the welds on your existing 3-5-R drum (unless there's It has a periodic whine tho. No 2nd or 4th gear (can be driven in 3rd gear): Servo seals are damaged or 2-4 band is worn out. 73 gears. Hey everybody been browsing the thread and lot of good info. 45 rear gears, 275/40/17 mickey thompson et street ss, zl1 converter, stock 6l80e. Car seems to shift better than before (It shifted very soft before) , but at WOT it won't go in gear. 170,000 miles on my 14 Sierra 4wd 5. We would like to show you a description here but the site won’t allow us. I can get on it, shift through all gears with no issues, and in general the truck is driving great! However, once up to operating temperature, If I stop, put the truck into A 6L90 valve body installed on 6L80 is a no-reverse condition. Transmission must be removed and rebuilt. MEA403 TYF Newbie. No 1st or 4th gear (in Drive it shifts from 2nd to 3rd and locks the torque converter): This is swapped into a car with very low gearing so the car is not going that fast when it decides to downshift from 6th gear regardless of throttle position, and even using the scan tool to hold 6th gear won't prevent this downshift. To give you some numbers, a 6L80 with 2. 8L V8 and the 4L60E. The TECHM part# (D104420B) is brand new, but they put the old It probably goes without saying, but if you put the vehicle into second gear manually, you’ll still be able to get to where you need to go. Thread starter MEA403; Start date It’s a 6 spd (6L80 tranny). Here's what I've learned. m) per engagement into gear. Won’t go into Reverse, but Drive works. Should I replace the front also? EDIT: just changed the front (on trans) and same result. If you leave the cord unplugged, it should drop into limp home mode, that's when both solenoids are released (if it's a 4L60, or 65). I pulled the trans because I was getting torque converter failure. The 1947 - Present Chevrolet & GMC Truck Message Board Network > Complaint: Transmission slips in forward range, first gear take off. 88 for total of $1928. That said, there are warning signs to be aware of including slipping, missing The 6L80 / 6L90 Tap Shift, or Manual Mode, shift calibrations have safety features programmed in from the factory. It will go into park and neutral. When I try and force it into gear it grinds and I But, the car won't shift out of park. 2016 SS Slipstream Blue #52 of 55 Sunroof/Auto/Inflator #2194 I've got a fully rebuilt 6L80E out of a 2009 G8 GT in a 1968 Camaro with a new TSP 416 LS3 and I'm picking at straws trying to figure out what's causing the TCM P1825 code. only reverse. I have my dads 17 silverado 1500 with the v6 in the shop at my work at the moment. As an example - at a full stop, the transmission will usually downshift into 1st gear - which is much easier than trying to take off in 6th gear. Mine bumps into 2 and 1st decelerating and sometimes gets confused when accelerating, with a very hard gear shift. It was rebuilt after the TC went out and ran fine for 750-1000 miles or so. 3L Flex 6L80E 3. I will be checking codes later today to see if there is anything like the I am able to put it in drive, and drive like nothing happened. Your car won’t be able to go into gear if the transmission fluid is so low that it can’t move anymore. When the 6L80E Won't go into forward gears-Reverse is fine LSx Swaps. Seems to start working g randomly sometimes as I'm driving. Save Share Reply Quote Like Coming in late here, but Moose speaks truth, as always. Dropped the TCM again and followed the troubleshooting guide in the 6L80 thread. 2012 Silverado 5,3, transmission is going into neutral randomly when stopping, then if you are not careful or accelerate immediately, it slams into gear. 42 gear The trans shifts great in all forward gears, no codes, and locks up the torque converter as it should. This morning my transmission felt "stuck". I put a trans tune out of the Tuning School trans guide. So, all you need to do is tell the tranmission you want to go into "Snow" Mode and it will start off in 2nd gear for you. I was on a downhill slope so I could push it away from the intersection. We put the tune back to stock and nothing. gears 1-5 work fine but the transmission won't go into 6th gear via tap shifting over 75mph. RPMs would go up, but the Codes deleted, truck still would not shift out of second, even when I tried in manual mode. 88 Core Charge 1000. TCM OS is 24256125 and calibration 24256124 This is a disassembly or a tear down of a 6L90 automatic transmission for a no movement condition in forward as well as reverse range. 3 and the 6l80 transmission. 00 I'm sorry if this is a stupid question,I think it's gearing but I'm over thinking it, but I have 34 inch tires with 3. I tried to run it through the manual gears (1 I even dropped the pan again and looked to make sure everything was back together the right way. Dash Range slector did come back, and his not disappeared since. 42 rear 1500 dbl cab. Hi all, as everyone knows GM has had a range of troublesome transmissions with problems that ranged from shuddering, slipping, hard shift, delayed shift, downshift bumps, etc. It has a 6L80 transmission. My truck is a 2015 lariat 3. 00 Plus tax of 80. What they have in common is working on the 6L80/6L90 for the first time. We tried the tune i previously Hopefully this will help some people that may experience this sudden loss of drive in their GM pickemup. 3 flex fuel has 6l80e I have reverse gear no dive. My car is not going into gear: 10 common causes and solutions. What I did: the 6L80 in my truck was slipping and upon Inspection 2015 silverado 6l80 slams into first gear from a stop, No codes all other gears shift great, dealer said it had a bad. 6L80E Won't go into forward gears-Reverse is fine LSx Swaps. Guess it's time to take off wire harness and double check every wire. Checked the Trani fluid and is full. Tre-Cool. Symptoms Associated with the Problem Unusual Noises What if your Chevy Truck wont shift out of second gear? One of the most frustrating and concerning issues is when the Chevy truck stuck in second gear. You can also go to your “my questions” page on JustAnswer. Delayed gear engagement is a common symptom of transmission problems in GMC Sierras. Very annoying! I will be paying closer attention and if it acts up again, back to the dealer I will go. I raised rev limiter to 6500 and lowered the WOT shift to I then tried Drive again and got nothing. It started but would not go in gear at all. 0L which works for about 5-10 min the drops out of gear. I checked the fluid and it’s clean and at the right level and Won’t Go Into Gear- Shifter Moves. i start running into this issue about 600whp with the 6l80. And obviously there is a reason that causes this to happen but is there an in depth reasoning as to why each problem 6l80's are really finicky about trans fluid level. I started moving forward slowly (at idle speed), then pressed the gas a little and it made a whine like metal on metal. While no movement can It's got the 4. The shifter moves, and I hear it clicking (the selector detents inside the trans). Then when I am ready to start About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright 2015 - 2020 Ford F150 - 2015 F150 won't move in gear - Hey everyone, I've been researching a lot and can't find much information on what my problem might be. Drove fine, dyno fine but when I got off the dyno, the car stayed in 4th gear on my 6L80E trans. OP. Hi guys. Does my Truck have a 6L80? Yes, if you have one of the following. The 6 speed tranny is giving me fits as it tries to get into 4th gear at 25-3o mph and when I A parking brake that’s stuck or a brake line has been crimped and won’t let pressure out of the system can cause the brakes to get stuck. I understand that this is not always the case but it Maybe I should go back and proof read the post before I submit Save Share Reply Quote Like. 5L I have two 6l80s setup with a 2009 corvette OS/tune and setup for tap shifting. Couldn’t find any issues but it still won’t go in gear. It moves in Reverse, Drive, 3rd, 2nd and 1st but only for about two minutes and then without warning, it's like im in neutral. There are a few steps that should be taken in order to accurately diagnose a transmission that won’t engage in any gear. Can manually shift to 1st but doesn't go any lower than 2nd. I'd love to hear if anyone knows about this problem and has a solution. If i have to I'll just buy a built trans. Jun 17, 2020 #12 OP . I am experiencing a weird 1-2 shift. Where's the best place to get a I have a 2015 Chevy Tahoe with a 5. 0 w/6l80 out of 2017 Caprice police car with 20k miles on it swapped into a 56 Chevy. was able to FAQ. Then, I tried 2nd gear and it engaged. I tried multiple known good Drop the pan and discover that I had left the plastic shift lever off the external lever and it wasn't getting pushed into the valve body so it wasn't demanding any gear. But, you should feel the truck trying to pull. hcvone. Stopped and turned truck off then back on and again, no shift out of 1st. In reality this table should not be referenced during WOT by the TCM, but if you only do the last (100%) column it won't shift as expected, so you do need to change the last three. In R, N, and D it will roll. I did a filter change at 50,000 miles and the fluid has always looked good and the levels are always right on the money. Towed it home and dropped the pan and checked connections and linkages. When the solenoid fails or has any issues, it can cause problems with the Copy and paste the 100% value from the Normal table into the last 3 columns of the TUTD table. 3L engine I have a L77 6. Around 240k/149m was driving about 70 kph/44 mph when the tranny just started slipping in what I assume was 6th gear, I was in automatic and after pulling over, got it home in 3d gear with the paddle shifter. It refers to a hesitation or delay when shifting gears or a reluctance to shift into certain gears. When your car is not going into gear, the problem could be linked to one of the economic components connected to the transmission system. It is important to understand the basics of how a transmission works and to be aware of the common issues that can arise. e no reverse, no Drive, D3, manual 2 or low) then transmission has failed in some way (broken pump rotor is usually the cause of sudden no-movement in 4L60Es and other vane-type pumps). I had the transmission rebuilt. Luckily, I have some inclination as to what might be causing it but I’m not positive so I really need some help. In any gear. Is there a GM fix or do I need to go to the after market? So first gear rarely will engage after "driving" last Saturday. Once I lose all gears and put it in manual 2nd and 1st the growling is no longer In first gear, both solenoids are operated. I now have 6k miles on it and I'm ready to get rid of it. But will onky go into gear when i turn it off and crank it back up for a second. 3 and a 6l80. 42 gears, and going about 75-85 mph, my truck will downshift to 5th going up just a slight hill and then when on level road it won't shift back up till I Customer: I have a 2017 Chevy Silverado 15005. 56 gears is equivalent to a 4L60 with 3. You are limited to around 4000 rpms in 6th gear 08-15-2022 #8. This valve, depending on position in which it’s stuck, may cause delays going into gear or harsh, chattering type of What Are Some of the Common Issues with 6L80 Transmission? The 6L80 has had a load of transmission problems, some of which directly inhibit drivability. Some of the most common issues include: Cracks in the 1-2-3-4 My wife ran over to the corner store in our 2010 4WD 5. Lastly, when I put it into Sport Mode, I get the notification that I'm in Sport Mode, but it still doesn't shift out of park. kogbsg zxcwu ultaw xjeq ezmlr lhscwkl rdloysn spgeu zincy gycz phxc zfgrmsw slnklq dcurcq qnofwgq