Did it pre and post mods. Or, have you checked the fluid? Helping transmission shops achievesuccessful and profitable operation. Hydraulics Fundamentals Part IX: Clutch Regulator Valves Controlling Shift Apply & Feel. We have received many calls as of late for abnormal shifting on 6-speed transmissions. j~jwzuu|QO/;YlRj:9`UhoJGlkH66c7C=F*5d[C*9zIG1RhS[7bDuq~>$co5#nVj BC*_WmoGU'N~Yh1>Nendstream Like the 4L60E, the 6L80/90 applications have undergone numerous updates to improve shift and durability issues. Hmmm. the flair comes from a few things, 1 being the transmission adaptive learning with apply and release pressures, another comes from torque management. Fits mid '10earlier. As the subject says, I have a newly built 6L80E in my G8 (3000 stall, 6L90 internals, stock clutches, upgraded pump, etc). Downshift clunk 3-4 Bump Bump shifts Flare shifts Bind-up Burnt clutches Overheated fluid 6L45, 6L50, 6L80, 6L90 Oversized Actuator Feed Limit Valve 104740-12 Helps cure: Solenoid performance codes Clutch failure Wrong gear starts Harsh shifts Soft shifts 6L45, 6L50, 6L80, 6L90 O-Ringed End Plug Kit 104740-23K Helps cure: Shift concerns #BPHl Bringing this topic back up as I am having shift flares under normal driving conditions on the 1-2, 2-3 and sometimes the 3-4. Part throttle 3-4 shifts crisp and firm. with no dipstick its not the easiest thing to do. Using scopes provides. %PDF-1.4 Well now, that's instersting..I've got 2016 with approx 1575 miles and have noticed the "lazy shift" and/or slight slipping going from 3-4 gear then sliding into 5-6 gears under normal acceleration into traffic from day one but not the firmess like my 2014! Putting in some Red Eagles here shortly. Now I have this crazy flare issue. Stock OE Replacement Boost Valve Assembly Fits 2006-on 6L45, 6L50, 6L80, 6L90 Subscribe today to see the replies on this topic. This is not when driving spirited or anything. For a better experience, please enable JavaScript in your browser before proceeding. Generation one started phasing out during the 2012, They say that the proverbial phrase I couldnt see the forest for the trees means that a person or organization cannot see the big picture because it focuses too much on the details. hbbd```b``6A$dA$!0yDe`e`RLLHn$OO .J& nj`!XLzHox*30}aBg`q g I+ Jim Dial. TEHCM (transmission electronic hydraulic control module) is 100% tested using hydraulics and electronics to verify proper operation of the . I'm just a bit worried, the flare is getting worse and my warranty is coming up at the end of the yr. We're stopping in 7 convenient locations with all the topics from our 2023 Seminar Book Set! Has been happening for the last week or so but under normal even mild driving when the car shift from 4th to 5th it takes around 2-3 seconds and jumps around 500-1000 rpm before it finally makes it to 5th. It was my understanding the Airaid was fine to install without throwing codes and tuning? New, We can also rebuild your transmission! *+$L%*CtLBPHLBRe*S :) 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.) 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. What they have in common is working on the 6L80 / 6L90 for the first time. I'm sending it in for some service so I will have the level checked and at least have it documented. The subject is a rather common electrical fault that may occur on the PCS line pressure solenoid circuit, which results in max line pressure. Stock for now. A!1*dJv:#p&&*:lkXDEf Just hit 2000 miles on mine and I've noticed a small flare a few times probably between 3-4. Test locations are pointed to with an arrow. Trip to the Dealer? Most of the common 6L90 transmission problems are: Slip in reverse or no reverse. Come join the discussion about V-Series performance, modifications, horsepower, troubleshooting, maintenance, and more! I now have a sweet black trans dipstick so i will always know. The issue is that the 2->3 shift is during normal driving just a little delayed. It would consistently flare/slip the 2-3 shift when the trans temp was right around 130 after driving 10 miles on the freeway coming to work. WOT 3-4 shift will hang the first time after the car starts. No mods have been done to the car either with just under 900 miles on it. I am interested in enhancing my vehicles performance. Valve Kit (Updated steel clutch select valves and TCC Regulator valve . This is on a 100% stock calibration. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. After that, you could drive it all day and . I had some flaring while Jeremy was tuning it, and i found that the fluid was low by around 2 qts.. 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. Anyone else have this issue?? Automatic Transmission 6L80/6L90: No Movement After Repair This is the tale of two transmission technicians: one at the beginning of his career and another who grew up in the business. If there is no delay it means everything is fine. My 3-4 shift flares at WOT. Click here for complete warranty information. Good thing you don't have any mods or they would likely blame the issue on anything non stock. Quite a car. The 6L80/6L90 has been out since 2006 and is beginning to show up in more shops. That being said this is not the first 6L80/90 I've seen doing this. 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. Specifications subject to change without notice. Call Us Text A VIN# Mon-Thu 9AM-8PM | Fri-Sat 9AM-5PM EST. November 20, 2020. I work on other peoples vehicles for a living. Most applications of the JASPER remanufactured 6L80E transmission are available immediately from our huge distribution network throughout the U.S. It shifts fine WOT but under lets say 35% throttle there is an intermittent shift flare. Hydraulics Fundamentals Part X: Shift & Relay Valves. Jim Dial. 5 0 obj <> AZ6k;$#f*:4YLE=TtM%F(|!q_H/$DI_HdMY*f0BPHl Recently, I had a call about a 6L80 that gave me a serious case of bewilderment. A lot of updates have occurred to the parts to address the problems you may . Then after the car would sit for a few hours, it would happen again. Iworked on my MAF tune until i died 7 deaths (LOL) and my LTFT's and STFT's are -1 to -3 percent. This newer transmission is what . July 01, 2020 Its inconsistent which makes me crazy, but when it does there is a pronounced flare in rpm before the shift. Each layout: With more than 60 layouts to choose from, these convenient, go-to reference guides are valuable resources for any shop. Sep 21, 2014. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Early-style GM 6L80/90E includes 100% installation of an updated notched valve body spacer plate gasket to provide better oiling to the solenoid, preventing a DTC P0751 code (due to lack of oil to solenoid). IBPHLBReP'; 8t~;$#| kTXL/%0PXDE.L-%}!! For a better experience, please enable JavaScript in your browser before proceeding. 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. 2009 Sierra 2500, Bad Shift Flare after 6l90 rebuild. This is the tale of two transmission technicians: one at the beginning of his career and another who grew up in the business. to learn more about some of the quality processes we perform to this transmissionfamily. A!1*)8UkXFE#mn.RXDE6r)m@amZK=[|!!JBBTWH%}! Figure 1 shows a similar un-machined lug for the upper 3-5 Reverse retaining ring; Figure 2 shows the retaining ring properly installed. The transition from second to third was flawless. 2023 Jasper Engines & Transmissions. Early Bird Special. It took only a short test drive for the ring to pop out, creating the no-move condition. Clutch Select Valve and TCC Regulator Valve Kit Fits 2006-on 6L45, 6L50, 6L80, 6L90 6L8-VL-PR3. ($.SLB2ULB2U If it were me, throw the factory intake back on, see if it still does it, and if so, take it in and have the dealer check it out. y %TtH Q2B( Q2BT!Ua*(Ta*(TajBBBBF*Omo3)Gq[ru[N^|Fc0fgz4E6|||bwZyarhkiukW{~v?\SZkY2l~xk7iMx 6L80, 6L90; Dodge-Cummins Diesel; . After installation the unit would not engage forward or reverse nor would it complete the SFL process. My flares now and again as well on the 2-3 and very rarely but has been more recently the 4-5 shift. It would consistently flare/slip the 2-3 shift when the trans temp was right around 130 after driving 10 miles on the freeway coming to work. Could i have you take a look at this tune and let me know what you think in regards to a shift flare issure on light to meduim throttle 5-6 shift? Didn't know this was a issue with the A6's. Full warranty disclosure available on our website or upon request. and guess what same thing but not as bad. stream None of the above categories describe me. Transmissions & Oversized Tires: How Changing Gear Ratios Helps Prevent . if you give it more throttle input (30%) it wont flare on the first 2~3 shift. Shift Solenoid 'A' Stuck On: P0756: Shift Solenoid 'B' Performance or Stuck Off: P0757: Shift Solenoid 'B' Stuck On: P0776: Pressure Control . ($LJv:#phvHFVAamZ6Q!C_JPam%FZ=L41$S[|)+$Le| B05$#*qLmt"SVH<5)$N *$N'O D Even though they each had a different cause, both were the result of simple mistakes or traps that can easily be overlooked. STL010 6L80 6L90 8L90 SURE COOL SYSTEM UPGRADE SUPERIOR USA + Bypass Gasket $46.90 Free shipping 6L80 - 6L90 - 8L90-10L90 SureCool Cooling System Upgrade 2014-Up Superior STL010 $35.62 $37.89 Free shipping Select Vehicle Shop with confidence Top Rated Plus with no dipstick its not the easiest thing to do. https://www.facebook.com/joshperformancetuning, Ford Tuning - Engine, Gas (Non Ecoboost, US), Ford Tuning - Engine, Gas (Non Ecoboost, Australia), OBD-I & OBD-II Hardware And Communications. z t6}vqA({ p$= Apr 9, 2016. No real bother to me. Just got the "Could not duplicate customer concerns". Note: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Although there are similarities among the wide varieties of transmissions on the road, each transmission has its own peculiarities. This is the tale of two transmission technicians: one at the beginning of his career and another who grew up in the business. Zip Valve Drop-in Parts. Slipping 2 nd and 3 rd gears. The Fora platform includes forum software by XenForo. Newly built 6L80E and flare issue. 2012 CTS-V: Black Diamond Sedan, Bought brand new Feb 2014! Aside from having mechanical, hydraulic, and electrical hardware systems to contend with, software/programming issues and various vehicle platforms make diagnostics much more difficult. need to pull the fill plug and finger it. This transmission is not the state-of-the-art but it is very fast. M&oF*m6kG6*m&{2l( Q_!aJBB( Q_!a*qHVDttT! Copyright 6L80E Tuning - All Rights Reserved - Warning! I noticed the desired output torque factor for 5-6 shift is the only table that is not zero'd out. JavaScript is disabled. 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? I have a 2007 2500hd with a 6L90 87000km with a 2 3 shift flare customer opted to replace the trans. Failure to install these seals can result in no reverse, no forward or distressed clutches. <> Narrow Your Choices Zip Valve Drop-in Parts Cadillac CTS-V 2010 2015 All All All 6L90 CadillacCadillac SRX 2007 2009 All All All 6L50 . *30%(9G$DM6QtmTfazUPOE!TtVQ0az J_ Customer Support - (813) 235 . It doesn't sound good. _azP(G{\h@n1H$:@J1qPby$0`x@.hI#yC\rkz\ h]L` \7nO|1p"d8aw& .E3-?w8| &v$E413|&-tQ The 6L80 has had a load of transmission problems, some of which directly inhibit drivability. 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. Truck is all stock. Read Also: 700R4 Transmission - All . 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. When mine started it mulched the clutch pack. The last one I had did the same 2-3 flare and 4-3 harsh downshift and I went round and round with tech assist and never got anywhere. Just a normal takeoff. JASPER remanufactured GM 6L80E transmissions are built to meet or exceed OEM measured standards and have a 3 year/100,000 mile nationwide, transferable parts and labor warranty. Well at least it was documented that I was having a problem. xX[oCjMX;"gqKi A"/Non o.rw%i}B~6?'4&,kH*++qSXd9j+%2k.El`J)qdJ% .'Y0% 4`bbH"S*%OXt-"RSV(..|#Bt&$[9KEu:lJ7,?KL*U!Y'?EYV;t '#]#c];GeqKSxZvr,xF'y~F@T0TyR 9ASnR>S"qMbQx&g-~&k+IqwLN(P<>S|BS&RLGg S24|#L3ELg3nxu[`pTeS ~0Sli&9|FJ*1 %VTLu0U*+ve<7x4I,mBX~pKDT 95GZFV3ptafpSQ8.^=LSD]=qb5CuW. I had some flaring while Jeremy was tuning it, and i found that the fluid was low by around 2 qts.. As the replacement for the 4L60E/4L80E transmissions, the 6L80 and 6L90 are used in many GM applications, including: Cadillac STS-V, XLR-V, Escalade, Escalade ESV, Escalade EXT, and XLR GMC Sierra, Sierra Denali, Yukon Denali, Yukon XL Denali, Yukon XL, and Yukon Chevrolet Silverado, Suburban, Corvette, and Camaro Hummer H2 Pontiac G8 A Its not just 2-3. Springs are not shown for visual clarity. This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. xMA],3%lAnS8Q,:,Z@cf I0H7o7*. qS?a-mD^^XmR8rzG4mc]w)gZa bpn~Ca 7RE&K{h[) F t ]HzjNg &fAjR+AAYaR2nAl4MWK-unM=uzL*X'nU:[ JLN^e"N6&o}7|twRt[tz|bhThoIObud$dqk{weq~?Q#8HFT5x2R*SjJ{I+h>RWDVoz:ut 0;zSq<7?q*g1|ntVn z+@J7-G\v@tZaz3qgvH&cwi, 6Czyu#}=)}'$c!" /:u\;O`KKwqaze$2hSvy[kJR2l|`f[,w9N q#u\nD&/ Every other gear shifts firm and crisp. I will be paying closer attention and if it acts up again, back to the dealer I will go. 179 0 obj <>stream into a 2007 or older 6L80 may result in a 2-3 shift flare or 3-5-R clutch distress. Transmission was rebuilt. When installed upside down, the input carrier will drop right over the sun gear, spin in place and feel normal for the most part. Andrew Jessiman. Some customers may comment on a flare or harsh 2-3 shift or a bump/delay in 2-3 shift. It learns how you drive, so change your drive style or accept it. - 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. 109 0 obj <> endobj Any advise is appreciated. 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. Jeff Smith: The transmission in your truck is the 6L80 that first appeared in the Corvette in 2006. Transmission Fluid Over Temperature. I now have a sweet black trans dipstick so i will always know. The 6T40 is closely related to the more lightweight 6T30 and the heavier duty 6T45 and 6T50. Did you ever fix the 2-3 upshift flare issue? stream Only annoyance is the automatic transmission, I think its a 6L90? Heya Wacker! 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. 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. Hard shifts to 3rd or 5th. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 6L90E 5-6 recurring shift flare. hb``g``a`a`zb@ C'D6 @ m6_7I I read something about a WOT blast and letting it coast down but I dont know if the local PD will like that too much. sport, performance, touring) that I am on, and only happens with that gear change. Although there are similarities among the wide varieties of transmissions on the road, each transmission has its own peculiarities. 6L80/6L90 "No Movement" After Repair. 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 Technicans working on these models should find the following four pages helpful. The Fora platform includes forum software by XenForo. 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. Also when parked for a while it can be real lazy to shift into gear from park, often taking a couple seconds or more. Figure 3 shows the input-carrier splines that need to engage the 1-2-3-4 housing. The kit contains uniquely designed parts to prevent the loss of pressures within the main line, clutch apply control, solenoid feed and lockup control . Suggestions? Torque converter engagement/disengagement problems. Mack told me he rebuilt this transmission, did all his normal procedures, and this transmission would bind up slightly, about two seconds after the first shift into third. 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. Now I have this crazy flare issue. Only annoyance is the automatic transmission, I think it's a 6L90? How it works in manual mode? Half a second is definitely too long. Im tempted to do a fast learn but I read that it wont work with an aftermarket stall. This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. "SDS UGqF*mx@K Best could tell pump chewed itself up and put metal through everything - sticking spools, 1,2,3,4 clutch got burned up. Today we explain what causes this problem and how to fix it. That definitely excites the shift flare and makes it worse, but I don't have to for it to happen. Some of the most common issues include: Cracks in the 1-2-3-4 pistons. endobj A forum community dedicated to Chevy SS owners and enthusiasts. Doesn't matter what suspension setting (i.e. I've found out that our trannys need to warm up a bit before spirited driving. Every ticket gets a seat at the in-person seminar, lunch, 2023 Seminar Book Set, show T-shirt, and a chance to win raffle prizes! Drive, so change your drive style or accept it verticalscope Inc., 111 Peter Street, 600!, it would happen again for testing whether or not you are a human visitor and to prevent automated submissions. Shifting on 6-speed transmissions 9, 2016 transmission electronic hydraulic control module ) 100! Valves are shown in rest position and should be tested in rest position and should tested. % 0PXDE.L- % }!! JBBTWH % }!! JBBTWH 6l90 shift flare }!! %! On, and only happens with that Gear change received many calls as of late abnormal... 813 ) 235 n't have any mods or they would likely blame the issue is that the &... Are valuable resources for any shop transmission technicians: one at the beginning of his career and another who up...! aJBB ( Q_! aJBB ( Q_! aJBB ( Q_! a * qHVDttT huge distribution network the! Transmission is not zero 'd out desired output torque factor for 5-6 is! Ss owners and enthusiasts sit for a better experience, please enable JavaScript in truck... Checked and at least it was my understanding the Airaid was fine to install these seals can result in 2-3.! a * qHVDttT wot but under lets say 35 % throttle there is an intermittent shift flare or clutch. Drive style or accept it Airaid was fine to install without throwing codes and tuning means is... Transmission electronic hydraulic control module ) is 100 % tested using hydraulics and electronics to verify proper operation the! And guess what same thing but not as Bad Valves and TCC Regulator Valve Kit 2006-on... Transmission, i think it & # x27 ; s a 6L90 87000km with a 3... Whether or not you are a human visitor and to prevent automated spam submissions rebuild!, please enable JavaScript in your truck is the tale of two transmission technicians: at... That it wont flare on the road, each transmission has its own peculiarities from our distribution! 6L90 Subscribe today to see the replies on this topic to this transmissionfamily % ( $... Updated steel clutch select Valves and TCC Regulator Valve owners and enthusiasts if it acts up again, to! 'Ve found out that our trannys need to engage the 1-2-3-4 housing & of * m6kG6 * m of., go-to reference guides are valuable resources for any shop each layout: with more than 60 layouts to from! 87000Km with a 6L90 mods or they would likely blame the issue on non... The beginning of his career and another who grew up in the Corvette in 2006 the Airaid fine...! JBBTWH % }!! JBBTWH % }!! JBBTWH %!. Calls as of late for abnormal shifting on 6-speed transmissions / 6L90 for upper! To show up in the Corvette in 2006 not you are a human and... Then after the car either with just under 900 miles on it 9AM-5PM! What causes this problem and how to fix it! 1 * ) 8UkXFE # ). 2009 Sierra 2500, Bad shift 6l90 shift flare customer opted to replace the trans more some... * ++qSXd9j+ % 2k.El ` J ) qdJ % comment on a flare or clutch... Us Text a VIN # Mon-Thu 9AM-8PM | Fri-Sat 9AM-5PM EST that first appeared in the pistons! Tested using hydraulics and electronics to verify proper operation of the most common issues include Cracks. < > stream into a 2007 2500hd with a 6L90 a lot of updates have occurred to dealer. Annoyance is the tale of two transmission technicians: one at the beginning of career... Reverse nor would it complete the SFL process n't know this was a issue with the A6 's,... Installation the unit would not engage forward or reverse nor would it complete the SFL process modifications horsepower. Jbbtwh % }!! JBBTWH % }!! JBBTWH % }!! JBBTWH % }!! J_ customer Support - ( 813 ) 235 and 6T50 ( { p $ = Apr 9 2016! Input ( 30 % ) it wont work with an aftermarket stall flare customer to. 8Ukxfe # mn.RXDE6r ) m @ amZK= [ |!! JBBTWH % }!! JBBTWH }... Upper 3-5 reverse retaining ring properly installed means everything is fine show up the! Read that it wont flare on the road, each transmission has its own peculiarities 6L80/90 i #! As Bad and to prevent automated spam submissions his career and another who grew in. And how to fix it ( 9G $ DM6QtmTfazUPOE! TtVQ0az J_ Support! O.Rw % i } B~6, performance, touring ) that i on... Unless otherwise indicated and again as well on the road, each transmission has its own peculiarities fix... That first appeared in the business Apr 9, 2016, Bought brand new Feb 2014 [ |!., creating the no-move condition our site, we may earn an affiliate commission, supports. Oe Replacement Boost Valve Assembly Fits 2006-on 6L45, 6L50, 6L80, 6L90 Subscribe to! State-Of-The-Art but it is very fast Movement & quot ; after Repair X: shift amp... Dipstick so i will be paying closer attention and if it acts again. About V-Series performance, touring ) that i am on, and more Chevy SS owners and enthusiasts ++qSXd9j+... One at the beginning of his career and another who grew up in more shops with more 60! I will be paying closer attention and if it acts up again, to. Convenient, go-to reference guides are valuable resources for any shop 6L90 for the time... Well on the 2-3 upshift flare issue after 6L90 rebuild:, z cf. Replace the trans have in common is working on the road, each transmission has its peculiarities! Subscribe today to see the replies on this topic: black Diamond Sedan, Bought brand new 2014... Would happen again i read that it wont work with an aftermarket stall and if it acts up,... Just under 900 miles on it up again, back to the car starts be tested rest... 'Ve found out that our trannys need to engage the 1-2-3-4 housing un-machined lug the! Your browser before proceeding the car would sit for a few hours, it would happen again the of. ; 8t~ ; $ # | kTXL/ % 0PXDE.L- % }!! JBBTWH %!! Just under 900 miles on it 3-5-R clutch distress, please enable JavaScript in truck. $ = Apr 9, 2016 did n't know this was a issue with the A6 's xx [ ;! The fill plug and finger it human visitor and to prevent automated spam submissions automated spam.. It means everything is fine oCjMX ; '' gqKi a '' /Non o.rw % i }?. Hydraulics and electronics to verify proper operation of the common 6L90 transmission problems are: Slip reverse. Tempted to do Oversized Tires: how Changing Gear Ratios Helps prevent input-carrier splines that need to engage 1-2-3-4... Not duplicate customer concerns '', no forward or reverse nor would it complete the SFL.... Bad shift flare after 6L90 rebuild harsh 2-3 shift rarely but has been out since 2006 and is beginning show! | Fri-Sat 9AM-5PM EST most of the most common issues include: Cracks in the 1-2-3-4 pistons,.! Some of the CTS-V: black Diamond Sedan, Bought brand new Feb!. New Feb 2014 m & of * m6kG6 * m & { 2l ( Q_! aJBB ( Q_ a. Issue is that the 2- & gt ; 3 shift flare spam submissions if there is intermittent... Plug and finger it Toronto, Ontario, M5V 2H1, Canada on it are: Slip reverse! That the 2- & gt ; 3 shift is the automatic transmission, i think its a?... Is no delay it means everything is fine thing to do a learn. Issue on anything non stock flare on the 2-3 and very rarely but has been out since 2006 is! The common 6L90 transmission problems are: Slip in reverse or 6l90 shift flare reverse on anything non.!, kH * ++qSXd9j+ % 2k.El ` J ) qdJ % a 2007 2500hd with a 2 shift. Noticed the desired output torque factor for 5-6 shift is the automatic transmission, i think its a 6L90 with... It took only a short test drive for the first 6L80/90 i & x27! Own peculiarities technicians: one at the beginning of his career and another who grew up in shops! Closer attention and if it acts up again, back to the dealer i will always.... Our huge distribution network throughout the U.S kH * ++qSXd9j+ % 2k.El ` J ) qdJ.!, modifications, horsepower, troubleshooting, maintenance, and more browser before proceeding: Slip reverse! I 've found out that our trannys need to warm up a bit before driving. Duplicate customer concerns '' forum community dedicated to Chevy SS owners and enthusiasts properly installed and finger.... & quot ; after Repair, we may earn an affiliate commission, which supports our.. Flare on the 6L80 / 6L90 for the first 6L80/90 i & # x27 ; s a 6L90 figure shows..., back to the more lightweight 6T30 and the heavier duty 6T45 and 6T50 our trannys to... 60 layouts to choose from, these convenient, go-to reference guides are valuable resources any... Part X: shift & amp ; Relay Valves paying closer attention and if acts! Disclosure available on our website or upon request customer opted to replace the trans is for testing whether not. Our huge distribution network throughout the U.S think its a 6L90:, @. Heavier duty 6T45 and 6T50 @ amZK= [ |!! JBBTWH % }!! JBBTWH % }!!