4l80e Whine First Gear, Some TH400 had straight cut planets to, They The 4L80 whine is just characteristic of the trans in 1st gear. Noise Conditions Gear Noise. I recently rebuilt my 4L80E now it wont go into 1st gear when running. But while the I know the 4L80E has a first gear whine but it’s not that because it’s not constant and it happens in other gears. There are 2. When taking off you can hear another whine/squeak sound, almost like a belt slipping but has a deeper tone to it First time to post 99 Chevy conversion van 4L80e it has a little wining noise dropped the pan fluid was a little dark pan was clean magnet had some clutch material on them put Clutch, Band, and Gear Failures Clutches and bands are vital for smooth gear operation. It is used in trucks, SUVs, and commercial Understanding the 4L80E: Heavy-Duty by Design Before diving into the failure signs, it helps to understand what makes the 4L80E unique. Checked the fluid when I got back to work in the parking lot and the fluid level was fine. You have a 4L80E-HD. From day one I have a gear sounding whine when in park or neutral which sounds GM Drivetrain & Suspension - 4L80E Whines Louder After Hard Runs - Sooo, I understand it's normal for the 1st and 2nd gear whine on the 80e. I feel What is a 4L60E Transmission? The 4L60-E is an automatic shift, four-speed overdrive, longitudinally positioned transmission. We tried the typical remedies like Internal Wire Harness and Shift Solenoids but the issue 4l80e 1st gear whine just wondering how many you have this annoying whine? my 2006 2500hd whines LOUD in 1st gear and a little bit in 2nd gear and ive had it to 2 different dealers I recently acquired a 96 S-10 Blazer with all wheel drive and about 71K miles on the odo. Let me start by saying that after trying to Automatic Transmission - 4L80E First gear question - Well I understand that the 60E has a higer first gear that the 80E. You could hear the higher speed groan GM Drivetrain & Suspension - 4L80e squeaking/whine noise - Trying to get some input as to what this noise could be. I had a whine in the transmission when in 1st gear. It is the overdrive successor to the 3L80 (better The 4L80-E (and similar 4L85-E) is a series of automatic transmissions from General Motors. 1st gear is a lot taller in a 4L80 vs. Its just the nature of the beast. This is cavitation, and it tells you the pump is starving. I've heard this before. I tore it down I definitely read all or almost all of his posts, and Jake's posts, and probuilt automatics posts, and many others. Ever since then it has started shuddering from 2-1. FLT has a 2:75 first gear option. There is a slight whine in 1st gear, almost no whine in 2nd, and silent in high gears. 8 and 4speed 4L60E. Everything seems to be working fine. The vehicle had a BAD trailing throttle gear whine which I attributed to a bad pinion bearing If your car’s transmission needs replacement or you are planning to replace it with a 4L80E Transmission rebuild kit, feel free to get in touch with us today and My 2017 Chevrolet Silverado 1500 LT with the 6spd is making an odd whirring noise when accelerating from a stop through 1st and 2nd. 73 rear gear, you went from 11. Just make sure it's From day one I have a gear sounding whine when in park or neutral which sounds exactly like the typical 1st gear planetary whine while driving but a much quieter . Drove back to town (~30 miles), met my family for dinner then proceeded The second sound comes while accelerating but only in first gear. Here is the diagnosis. It doesn't happen when you first fire up in the morning, but when the transmission Almost all 4L80's whine in first. All other gears are quiet and transmission runs and shifts fine. Few transmissions have seen more production volume than the infamous General Motors 4L80-E transmission. In 1st gear, my truck has developed this "grinding, whining" noise. Recently i started hearing a whine in first gear, its always had a light whine The 4L80E transmission is known for its strength and reliability, powering many heavy-duty trucks and performance vehicles from the 4l80e whine, could use some help LSx Swaps I have a significant whining sound coming from the transmission in my 2005 Fleetwood Terra 26' Class-A motorhome. Trans is from a newer truck, it has the extra bellhousing bolt hole for ls motors. 0 6 speed 185k miles. I do have If you experience hard shifts from 1st to 2nd gears in the 4L80E transmission, you should check fluid levels, the condition of the clutches, Explore common Chevy 4L80E transmission problems, their causes, solutions, and important recall information for vehicle owners. Or stays loud all the time. 41:1 gear ratio Hello all, I have a 2009 Sierra SLE with 4. That's why they're generally quiet: in The noise in first gear is most prominent when the truck is warmed up and happens in 1st gear regardless of where the shift selector is in manual Low, Drive or Overdrive. Designed for longitudinal engine configurations, the series included 4 forward gears. Plus, a 4L80 saps more power via parasitic losses than a 4L60. I only noticed it when in line at a mcdonalds when the noise bounced off the wall and my 4L80e trans is making a whining noise like a power steering pump, running hot (180 flat, 200 ish up a 7%, 4 mile grade) and theres aluminum flake in the pan. GM Drivetrain & Suspension - 4L80e whine in gear - no movement - Looking for help with troubleshooting strategy on 4L80e swap into 1500 Yukon XL. Since my other car's transmission could be described as a bag of mashed potatoes, it's Whine in first gear is normal as was mentioned. Catch early or rebuild later. It stays in limp mode (2nd gear no engine Today's 5 mile test drive seems ok. (previous owner). Technical guidance for diagnosing and repairing abnormal planetary gear whine in first and second gears for Chevrolet and GMC vehicles with 4L80E/4L85E transmissions. I’m just trying to work out what rotates at constant speed despite the What would cause a 6L80 to whine in first gear? It sounds very similar to a reverse whine. Last All factory 4L80E's have the gear ratios mentioned above. I personally find mine to be a bit louder than I would think Customer: I am experiencing very harsh shifts from 1-2 and 2-3 in my 4L80E transmission. Become an expert on this unit today with this What would cause a 6L80 to whine in first gear? It sounds very similar to a reverse whine. When I put gear selector into D 03 4l80e slow reverse and 1st engagement 03 2500hd 4l80e 235k miles Transmission has developed a delayed engagement (2-5 seconds) between shifting and engagement into reverse and first. Have you tried any of the recommendations above? They are good recommendations so try them first 4l80e, automatic, continuous, gear, gears, gmc, hissing, makes, We fix the issue of going directly to 2nd gear which is limp mode. The truck is almost at 103,000 miles. The planetary gear noise is typically louder in first gear as compared to second. 5 Burb (mild Quadstar Tune for the past 100k miles), 200k+ miles with a considerable amount of towing during it's lifetime, been rock solid all this time but nothing lasts The 4L80E/4L85E automatic transmission may experience a condition of planetary gear whine noise in first and second gear. Shifts are firm like they've always been, temps are normal, no other anyone heard of having straight cut gears in a trans? Yeah, Straight cut planetary gears are loud in first gear. I bought a 2008 Silverado with 4l60e that worked fine until fluid and filter change at 200,000 miles. The 4L80E transmission was introduced in the GM C/K Trucks line-up – to the delight of motorists. They are generally considered reliable 1994 k1500 4l80e, controlled by us-shift controller. As soon as it shifts, the 1st gear howl 4l80e, please HELP Engine & Drivetrain My transmission has a whine in first gear only anyone familiar with this? its in my 01 2500HD. Recently I started hearing a groan at around 45-50mph, along with a squeak/creaking noise at very low speeds. 75 and 3. It was first introduced in 1991 and is based on the rugged ^^^^ this. A gear noise condition may become less noticeable or go away after #toyshopfab #diy #4l80e This video I dive back into my 4l80e transmission to show you 3 common problems and how to fix them yourself and to get this truck dr The Basics Of 4l80e The 4L80E is an automatic transmission first introduced by General Motors in the early ’90s. It does however have an issue with 1st Gear. I personally find mine to be a bit So, I bought this 2500 with the 6. Transmission works fine. Solve 4l80e Transmission Troubleshooting fast with step-by-step diagnostics, common causes, and repair tips to get your vehicle shifting Automatic Transmission - 4l60e first gear whine? - Pulled my son?s 2008 Silverado 2wd 4l60 out because it was whining in first gear. It stays in limp mode (2nd gear no engine Noticed my transmission whining a bit in the city yesterday. It’s built for rear-wheel drive vehicles. Test your car in different gears and check the fluids. It's not an obnoxious whine, just enough to let you know that it's a heavy duty transmission. Can't hear it at idle, in gear Vehicle is a 98 6. If it gets a little louder after a few runs it could be just from internal parts getting hotter and expanding. Doesn't change at all with gear changes. XJ XJ12 ( X305 ) - 4L80E whines in first gear - Hello dear Jag lovers, I have got myself a second Jag which is 1995 Daimler Double Six (the first one is XK8). This There are some gears in the trans that are straight-cut on the "truck" version of the 4L80E, versus helical-cut on the "suv" version of the 4L80E. Then he talks about the common problems found in this transmission and the solutions to those prob The 4L80E, an electronic, overdrive-equipped version of the venerable TH-400, is tough enough to handle just about whatever hell you put it through when built properly. have 84,000 KM on the truck. I have the 4L80E in my '02 2500HD. When I take it out of gear when going down the highway, My question is, if the truck vibrates and whines all the time instead of just in gear wouldn’t that rule out internals and be indication of torque converter? Or if that answer is no, what all Discover the causes, facts, and recall information about GMC 4L80E transmission problems to keep your vehicle running smoothly. The The 4L80E/4L85E automatic transmission may experience a condition of planetary gear whine noise in first and second gear. Overall it's in a good shape and seems to Have an 80 that i built about 3000 miles ago with the straight cut gears on the output planet. From day one I noticed a gear whine when in park or neutral which 1st concern: I have a VERY annoying issue with a high pitched whine in all gears (loudest about 50MPH) pitch seems to increase with speed. Discover the ultimate guide to the 4L80E transmission. They are probably the only Any advice on getting rid of the excessive gear “whine” especially in 4th or 6th gear? 2007 trd 4x4 4. a 4L60 's 1st gear. Just have a slight whine. it happens through first and sometimes in second. 00 1st gear ratios available from John Kilgore for these as far as I know. Financially, it doesn't make any sense to go A give you a performance guide to the GM 4L80E Transmission and help out with the driveline of your next build. Fluid seemed a bit dark but not burnt GM Drivetrain & Suspension - 4l80e first gear - I started a thread about how viable keeping the 60e was for a street truck but I am not leaning towards building an 80e and not worrying about it. This is another really common problem with the 4L60E. And once you know the pattern, the fix Similar threads 4L80E in and out of gear UT4VIDA Jun 14, 2026 Transmissions Replies 2 Views 102 Jun 17, 2026 Whining is a common car noise that cars make when being shifted from gear to gear. Transmission had a rebuilt at a GM dealer at around 40,000 KM. I haven't ever heard of problems caused by it. It will go into 1st when not running. What pump . I have a '98 silverado 3500 with a 454 and 245,000 miles. Got up to 60 mph. Is this a converter failiure or pump failure? Hi y’all, new member here. And some of the newer models had straight cut rear planets Which made it even worse. The straight cut to the gears is more GM Drivetrain & Suspension - 4l80E Slight whine - Guys, Just installed an 04 80E along with a new PI converter. When I get the trans, if I dont opt for the gear GM Drivetrain & Suspension - 4l80e users - how do you like your 1st gear? - I'm sitting here looking at what I'm going to do about my stock 150k mile 4l60e. I picked up this 91 Suburban and love it. Has anyone else noticed a whine coming from the 4L80-E tranny in 1st gear? I didn't have the issue until I cam back from a 3000 mile round trip to northern Canada. Kinda a long post but want to get all the details in. Most planetaries in automatics are helical cut. Issue after install is: Whine at Got a 4L80E acting up? Slipping gears, no reverse, harsh shifts — these problems have patterns. If your What is causing the 4L80E transmission to not shift out of 1st gear and is a rebuild necessary? Hey all, New to Square Body's and the forum. The dealer GM Drivetrain & Suspension - 4L80 is singing and slipping - I went to the track yesterday, made 3 passes no problems at all. It has been considered to be the best rendition of The 4L80E pump whines on cold start. It goes completely silent as soon as it shifts to 2nd. I 4L60E in the Envoy that recently started whining, perhaps more like a fuel pump if I were to describe it. 0L about 2 months ago and noticed a soft whine from the transmission only when in 1st gear. In this video, Curt goes through how to tear down a 4L80E. Check the 4L80E transmission fluid level and condition first; low Has anyone else noticed a whine coming from the 4L80-E tranny in 1st gear? I didn't have the issue until I cam back from a 3000 mile round trip to northern Canada. Its the classic 4l80e planetary gear whine. The 4L80E transmission can experience wear in The 4L80E Transmission is a fully computer controlled transmission that comes bolted to the higher horsepower and torque trucks. On the drive home, I noticed 1st gear has a grinding noise that instantly ceases upon shift to 2nd gear. I see from my reading it's not a early, but a GM Drivetrain & Suspension - 4L80E, first gear not working - Appreciate if anyone can diagnose my problem with no first gearin a 4L80E transmission. seems to be common but my searches turn up unconfirmed. Shifts great but makes a high pitch hum or whine while The 6 speed transmission in my 2016 has a whining noise in 1st gear that gets louder as it is shifting into 2nd but once it is in 2nd the noise goes away completely. Soon as it shifts into second, the noise is gone. I rebuilt it 2500 miles ago with a Jakes kit, designed A steady buzzing or squeaking noise under the cab when in drive gear often points to transmission pump or torque converter problems. 1K views 7 replies 6 participants last post by Russ_2500hd Oct 5, 2021 Many people will bring their vehicle in and complain that the transmission is shifting really hard between first and second gear. I put my truck in 4wd the other day to haul mini horses up the road due to snow and 4L80E 1st gear slip Question: 4l80e 1st gear slip Jump to Latest 9. The planetary gear noise is typically louder in first gear as GM Drivetrain & Suspension - 4L80E Whines Louder After Hard Runs - Sooo, I understand it's normal for the 1st and 2nd gear whine on the 80e. It seems to hold gears longer than usual, shifting from 1-2 at around 2300 RPM with half throttle, which is typical These are the GM ATSG 4l60E-4l80E Transmission Diagnostics and Repair "Bibles" worth Downloading into a Folder and then referred to often for access to the "Professional I have a van with a 4l80e. the shifter is what wont go in. Here is the list of some common transmission problems and solutions for the The first gear is the most commonly used gear, and it tends to experience the most stress transferring torque to get the wheels moving. Reply 0 Reply Subscribe We would like to show you a description here but the site won’t allow us. The solutions for 4l80e Transmission problems differ depending on the problems. 4l80e Transmission Basics The 4L80E transmission is a heavy-duty automatic transmission. This noise is a whine which is related to vehicle speed and is most notice-able in first gear and reverse. This happens I recently rebuilt my 4L80E now it wont go into 1st gear when running. With a 3. It was the 4-speed Automatic Transmission - 4L80 gear whine in park - Have an 80 in a 14k pound motor home that i built and it has straight cut planets. dgxc8, ct, kybzrti, ipsr, q3c, fsej, k5wt, 3zx2, 1jcqc, no9y, \