Downshift clunk 3-4 Bump Bump shifts Flare shifts Bind-up Burnt clutches Overheated fluid 6L45, 6L50, 6L80, 6L90 Oversized Actuator Feed Limit Valve 104740-12 Helps cure: Solenoid performance codes Clutch failure Wrong gear starts Harsh shifts Soft shifts 6L45, 6L50, 6L80, 6L90 O-Ringed End Plug Kit 104740-23K Helps cure: Shift concerns The 6T40 was introduced in 2008 for General Motors front-wheel-drive cars in the Chevrolet Malibu and has gone through several changes throughout its three generations, specifically in the pump area. Some customers may comment on a flare or harsh 2-3 shift or a bump/delay in 2-3 shift. With five seconds completed, shift back to neutral and leave the transmission lever in neutral for five seconds. Both were doing repairs; one had installed updated seals for an intermittent 2-3 flare, and the other installed an upgraded clutch pack. Well now, that's instersting..I've got 2016 with approx 1575 miles and have noticed the "lazy shift" and/or slight slipping going from 3-4 gear then sliding into 5-6 gears under normal acceleration into traffic from day one but not the firmess like my 2014! - The ins and outs of transmission diagnostics, - Mazda FW6A-EL stored pressure switch codes, ZF9HP48, 948TE Line Pressure Control and Diagnostics, Trying to Stop the Wheel Hop on Ford Edge with 6F50 Transmission, Californias Rohnert Park Transmissions is a multi-generational success story, When a transmission problem isnt a transmission problem, A part for every need: Hard parts supplier listing 2023, Breaking parts: Pressure regulator valve and bore blues, Video: Lubegard Limited Slip Supplement overview, GM 6L series no-movement conditions: Analysis and repair tips, Critical wear areas and vacuum test locations: GM 10L and Ford 10R series, Diagnosing Chrysler transmission max line pressure and P0933, P0869, P1745 codes, How to fix GM 8L45/8L90 no-move and no-pressure conditions, No Forward Good Reverse A Leave Out or a Blow Out, Tech Tip: GM 6L80, 6L90 Low Line Pressure Repair. Only annoyance is the automatic transmission, I think its a 6L90? ;b2)%7ez>%mB$qDPdjZEdRlh77TZRm_GnLY need to pull the fill plug and finger it. This procedure will work. could be some of the same issue with the early 6l80e's had , when they were assembled they cut the o-rings enough to cause a pressure drop or by-pass. Skipping 2-3 gears. Recently, I had a call about a 6L80 that gave me a serious case of bewilderment. I reset/preset the trans adapts and trans fast adapts. Transmissions & Oversized Tires: How Changing Gear Ratios Helps Prevent . and guess what same thing but not as bad. Stock OE Replacement Boost Valve Assembly Fits 2006-on 6L45, 6L50, 6L80, 6L90 Stock for now. Just a normal takeoff. The 6L80E transmission is widely used in such popular GM applications as the Silverado and Sierra trucks, Tahoe, Suburban, Denali, Hummer H2, Cadillac Escalade, STS and CTS, Camaro,and G8 . Heres what you can do about them. It was my understanding the Airaid was fine to install without throwing codes and tuning? <> A forum community dedicated to Chevy SS owners and enthusiasts. New, We can also rebuild your transmission! Modifying the OEM tune is at the owners' risk and may void Warranty - Subscription renewal is $49.99 while active and $99 if allowed to expire. Pressure Regulator Valve Repair Kit Fits 2006-on 6L45, 6L50, 6L80, 6L90 6L8-BOOST-OES. For a better experience, please enable JavaScript in your browser before proceeding. Cadillac CTS-V 2010 2015 All All All 6L90 CadillacCadillac SRX 2007 2009 All All All 6L50 . I know this is a VERY broad question but can you give me a ballpark of "a bit more tranny pressure", and what kind of "shift times" I should be using as a starting point? Sonnax is an industry leader in the cutting edge design, manufacture and distribution of the highest quality products to the automotive aftermarket, commercial vehicle industries, and industrial sectors utilizing drivetrain technology. hbbd```b``6A$dA$!0yDe`e`RLLHn$OO .J& nj`!XLzHox*30}aBg`q g Fits mid '10earlier. Mine has done that since day one. I've found out that our trannys need to warm up a bit before spirited driving. _azP(G{\h@n1H$:@J1qPby$0`x@.hI#yC\rkz\ h]L` \7nO|1p"d8aw& .E3-?w8| &v$E413|&-tQ Apr 9, 2016. A!*)8UkXC2 Previously i was fighting a TCC slip issue but I got that figured out QUICKLY since I didnt want to burn up the lockup clutch. The GM 6L series units are quickly replacing the 4L60E as the most common unit shops find in their stalls today. "SDS UGqF*mx@K I had some flaring while Jeremy was tuning it, and i found that the fluid was low by around 2 qts.. . it works well after relearn and I have all other shifts working great, but 5-6 will always start a light flare in a few days of DD. Scary thread. *+$L _H%}!! My (former) stock 09 V had the dreaded 2-3 shift flare (or TRANS SLIP as the rest of the world calls it) at around 30k miles and nobody could figure it out. Read Also: 700R4 Transmission - All . Copyright 6L80E Tuning - All Rights Reserved - Warning! VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I thought maybe the the CAI swap might be enough to make the TCM relearn but it is not going away. I would be expecting/wanting a rebuild. I hope everyone enjoys. (813) 333-5050. Its inconsistent which makes me crazy, but when it does there is a pronounced flare in rpm before the shift. Aside from having mechanical, hydraulic, and electrical hardware systems to contend with, software/programming issues and various vehicle platforms make diagnostics much more difficult. Iveraised the shift pressue, reduced the shift times, ran 0% TM ARGH! need to pull the fill plug and finger it. Very very annoying. Most of the common 6L90 transmission problems are: Slip in reverse or no reverse. Some of the most common issues include: Cracks in the 1-2-3-4 pistons. <> T! Didn't know this was a issue with the A6's. Pissed me off that it wasn't happening before on the street. WOT 3-4 shift will hang the first time after the car starts. Failure to install these seals can result in no reverse, no forward or distressed clutches. My 3-4 shift flares at WOT. Come join the discussion about performance, modifications, troubleshooting, superchargers, turbos, maintenance, and more! Well at least it was documented that I was having a problem. A!1*THL k(8M& 3469 No mods..Call me paranoid now as my 2014 had great/firm shifting in all gears from day one even prior to the Livernois tune..The tune made it even better..Hmm kinda puzzled on the shifting thing now..I just can't imagine dealer tearing into the Hot Rod so early on..!! Could i have you take a look at this tune and let me know what you think in regards to a shift flare issure on light to meduim throttle 5-6 shift? As the subject says, I have a newly built 6L80E in my G8 (3000 stall, 6L90 internals, stock clutches, upgraded pump, etc). That being said this is not the first 6L80/90 I've seen doing this. Heya Wacker! Click here for complete warranty information. thanks for the help! ($.SLB2ULB2U Again, in normal driving the delay is very brief (but annoying) while the other shifts are ok. Basic 6L80e/6L90e tuning guide. j~jwzuu|QO/;YlRj:9`UhoJGlkH66c7C=F*5d[C*9zIG1RhS[7bDuq~>$co5#nVj BC*_WmoGU'N~Yh1>Nendstream Modifying the OEM tune is at the owners' risk and may void Warranty - Subscription renewal is $49.99 while active and $99 if allowed to expire. Valve Kit (Updated steel clutch select valves and TCC Regulator valve . Transmission Fluid Over Temperature. Technicans working on these models should find the following four pages helpful. #BPHl Andrew Jessiman. But, for those of you who have yet to lay your hands on one, mounted on the upper side of the unit is one of the largest, if not the largest solenoid and pressure switch, Below are the diagrams for vacuum testing GM 8L90 transmissions. Early-style GM 6L80/90E includes 100% installation of an updated notched valve body spacer plate gasket to provide better oiling to the solenoid, preventing a DTC P0751 code (due to lack of oil to solenoid). Half a second is definitely too long. I'll just leave this here. Then after the car would sit for a few hours, it would happen again. What they have in common is working on the 6L80 / 6L90 for the first time. The kit contains uniquely designed parts to prevent the loss of pressures within the main line, clutch apply control, solenoid feed and lockup control . Narrow Your Choices Zip Valve Drop-in Parts Overall, it is an easy transmission to work on, but whether you are a novice or an old-timer be sure to avoid these two traps waiting to catch you. #|/$u/$De|) Q/$De|!YepX%;dVHL Theres a split second where theres no forward thrust, 3rd gear comes in too late. Immediately after I started getting a 2-3 gear flare when the car was cold, it only does it once and that's it. December 17, 2020. Buy Remanufactured GM 6L80 / 6L90 Valve Bodies Factory Direct at Street Smart Transmission. Iworked on my MAF tune until i died 7 deaths (LOL) and my LTFT's and STFT's are -1 to -3 percent. Clutch Select Valve and TCC Regulator Valve Kit Fits 2006-on 6L45, 6L50, 6L80, 6L90 6L8-VL-PR3. The "E" designation has been dropped even though all these transmissions are electronically controlled. It doesn't sound good. JavaScript is disabled. It learns how you drive, so change your drive style or accept it. The 3-4 flares in wot in touring and sport mode. When accelerating harder, sometimes it shifts fine, sometimes the delay gets a lot worse, feels like a full half second maybe, and then the 3rd gear comes hard. hXmo+l Q4K&-76h D@ I#6x{s$cx{ b3! Its driving me plain mad. Tackling Clutch Failure in the GM 6L80/90. That definitely excites the shift flare and makes it worse, but I don't have to for it to happen. ho|7IyM~Ulb?IF+ClGEGeIU-Zgr#^6ts:!GRC. I am amazed that a major hard part like the input carrier can be installed upside down and have no effect on assembly or end play. Jim Dial. These 90e's are persnickety about thatOh, not a dealer thing. 6L90E 5-6 recurring shift flare. %PDF-1.6 % but just curious if anyone else has seen or felt this issue. The reason for the retaining-ring pop-out was that the technician did not notice the special un-machined lug, and when he placed the retaining ring over this area it was prevented from fully seating in the groove. Newly built 6L80E and flare issue. I'm not going to take it in just yet because I have only noticed it twice but if I continue to see if I will. kPAjRMTt/1P_4GIBB0%|! I+ July 01, 2020 SHIFT KIT Valve Body Repair Kit Fits 2006-on 6L45, 6L50, 6L80, 6L90 . This is not when driving spirited or anything. 2012 CTS-V: Black Diamond Sedan, Bought brand new Feb 2014! endstream endobj startxref My (former) stock 09 V had the dreaded 2-3 shift flare (or TRANS SLIP as the rest of the world calls it) at around 30k miles and nobody could figure it out. The T43 controller is the hardware type that controls the 6L80 and 6L90 6 speed automatic transmission found in VE's, VF's and Colorado 2.8's which are found in Australia and New Zealand delivered vehicles. Cracked drum. The 2-3 flare up complaints are often caused by a slow pressure rise curve due to wear at the pressure regulator (PR) valve bore. if you give it more throttle input (30%) it wont flare on the first 2~3 shift. Conditions of no movement or no pressure after repair have plagued this unit since its inception. 6L80 & 6L90 Upgrade Options for the 4-5-6 Clutch. ($*SLB2ULB2U Today we explain what causes this problem and how to fix it. Slipping 2 nd and 3 rd gears. I don't think this will fix the problem. !JBB08$l%Y5*d0BPHL Learn how to fix timing-related shift problems in Ford 6R80 and 6R140 transmissions and related adaptation, clutch clearance and solenoid flow rate problems. If you experience any issues accessing the information on our site, please call us at 800-827-7455, and dial 0, Monday through Friday, 7:00 am to 5:00 pm EST, for assistance. 6L45-6L90-ZIP. This newer transmission is what . 6L80, 6L90; Dodge-Cummins Diesel; . Hard shifts to 3rd or 5th. I have a 2016 GMC Sierra 5.3 A6 and I'm having the EXACT same issue. When installed upside down, the input carrier will drop right over the sun gear, spin in place and feel normal for the most part. Aside from having mechanical, hydraulic, and electrical hardware systems to contend with, software/programming issues and various vehicle platforms make diagnostics much more difficult. We have received many calls as of late for abnormal shifting on 6-speed transmissions. 100% dynamometer tested with TCM (transmission control module) validation using a state-of-the-art CAN (controller area network) software package. This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. Doesn't matter what suspension setting (i.e. :) 6L80 = 2006-2018 4.8L / 5.3L / 6.0L / 6.2L / 6.6L 6L45/6L50/6L80/6L90 BUILD PARTS LIST MASTER KIT (CLUTCHES, STEELS, OVERHAUL KIT, FILTER, BONDED PISTONS) TRANSMISSION FILTER Shift Kit (Updated boost valve, pressure regulator valve, sealing rings, etc.) This prevented the 1-2-3-4 housing splines from engaging the input carrier and resulted in no movement, forward or reverse. Conquering the GM Compensator Clip Conundrum. Anyone else have this issue?? This is the tale of two transmission technicians: one at the beginning of his career and another who grew up in the business. . No mods have been done to the car either with just under 900 miles on it. to learn more about some of the quality processes we perform to this transmissionfamily. A low vacuum reading indicates wear. I work on other peoples vehicles for a living. JavaScript is disabled. Its not just 2-3. Helping transmission shops achievesuccessful and profitable operation. A forum community dedicated to Cadillac CTS-V owners and enthusiasts. M&oF*m6kG6*m&{2l( Q_!aJBB( Q_!a*qHVDttT! On it I ended up replacing the TCM and solenoid assembly and the upper and lower valve body but never fixed it. Take it in. I will be paying closer attention and if it acts up again, back to the dealer I will go. 2004 Vette Coupe, LS2, MN6, Vararam, ARH/CATs, Ti's, 4:10, Trickflow 215, 30# SVO, Vette Doctors Cam, Fast 90/90, DD McLeod, DTE Brace, Hurst shifter, Bilsteins etc. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Common complaints on this transmission are flare 2-3 upshift, insufficient pressure rise, TCC slip or shudder, soft shifts as well as shudder on hard acceleration from a stop. The 6L80/6L90 has been out since 2006 and is beginning to show up in more shops. 5 0 obj I am interested in enhancing my vehicles performance. 143 0 obj <>/Filter/FlateDecode/ID[<1BA98715ECCB4FC6BDB2BEDCDD352D29><8CBC1D3C84BADB4EA15D73197E18925E>]/Index[109 71]/Info 108 0 R/Length 147/Prev 465150/Root 110 0 R/Size 180/Type/XRef/W[1 3 1]>>stream endobj Definitely an un-easy feeling but shifts are perfect under mid to heavy throttle. What they have in common is working on the 6L80/6L90 for the first time. into a 2007 or older 6L80 may result in a 2-3 shift flare or 3-5-R clutch distress. 2009 Sierra 2500, Bad Shift Flare after 6l90 rebuild. Copyright 6L80E Tuning - All Rights Reserved - Warning! A lot of updates have occurred to the parts to address the problems you may . hWGoF,\U>bahcXF|4mC/7O=xd>[>~y99'W/s4p([ 5. ($LJv:#phvHFVAamZ6Q!C_JPam%FZ=L41$S[|)+$Le| B05$#*qLmt"SVH<5)$N *$N'O D TEHCM (transmission electronic hydraulic control module) is 100% tested usinghydraulics and electronics to verify proper operation of the internal mode switch, transmission fluid pressure switches, temperature sensor, speed sensors and solenoids. can webassign detect copy and paste,

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