4l80e tcc tuning. Also we have set the TCC to engage at 58 .

4l80e tcc tuning 0/4L80E I bought with about 90k miles in May 2018. The TCC solenoid is fed full line pressure, however it cannot flow enough due to its port sizes even at 100% duty cycle to output more than 120 psi. I understand the upshift points, but not so sure on the downshift points. Forum members will want to see your Config File and a Datalog of this occurrence. com Email tuning!!!, Mail order, Dyno tuning, Performance Parts, Electric Fan Kits, 4l80e swap harnesses, 6l80 -> 4l80e conversion harnesses, Installs 07-05-2023 #11 rhackstall Tuner in Training HP Tuners GM Gen III part 27 walks you through how to program automatic torque converter lock up and shift pressures to improve drivability, performance and Hello, I am a savvy mechanic having been a tech for about ten years. Prevent forced 1-2 upshift when in manual 1 and TCC lockup in 3rd. Below is from a 4L80E service manual: With engine running, shift transmission into Drive with foot on the brake, at idle in Drive, Park & Neutral, the main pressure should be Forum Tuning Petrol / Gas 4speed RWD/FWD Transmission Tuning (incl T42) 4L80E Harsh Engagement - TCC Drag I still prefer tuning Gen3 and Gen4 cars/trucks with EFILive over HPT, but everytime I have a guy come in with a T43 (6L80e) with an aftermarket small diameter stall, I have to go get my HPT cable so I can tune the TCC regulator gain/offset to keep the lockup clutch from slipping/surging. I know that I need the segment swap and after that I know I need to adjust my shift points. Global Configuration Files (GCF) and Datalogs must be "zipped" (compressed zipped folder) in order Feb 8, 2019 · Forum Tuning GM V8 Tuning GM V8 Tuning - Engine, Gas (Gen 3) 4l80E Swap No TCC Results 1 to 3 of 3 Todays Questions! 4L80E WOT shifting problem. The OE spring on the TCC regulator valve cancels the first 33 psi from that, so the max pressure the TCC regulator valve can send to the converter when in lock-up is limited to roughly 87 psi from Thread: 4L80E/4L85E 8. com Email tuning!!!, Mail order, Dyno tuning, Performance Parts, Electric Fan Kits, 4l80e swap harnesses, 6l80 -> 4l80e conversion harnesses, Installs 11-07-2022 #6 horsepowerguru427 Advanced Tuner Dec 27, 2012 · Forum Tuning Petrol / Gas 4speed RWD/FWD Transmission Tuning (incl T42) 4l80e 4th gear and tcc problem (running from 4L60E segment) In today's video I am tuning a stock 2003 Chevy Silverado 5. Pigpen has a host of transmission problems, so I'll run through them and how I fixed them, since we don't seem to have much 4L80E info here. Other then that, what codes and ect do I need to turn off and adjust. It had 260k trouble free miles on the clock, but I felt that it was a time to tear it down for a rebuild. I didn't know at the time, but it had a Jasper trans. Transmission shop tells me the result is the TCC locking & unlocking. both required). Looking at the Log, the TCC isn't being commanded to Oct 26, 2023 · Plug in a bidirectional scan tool to read any engine or trans codes if present and watch what commands are being issued to the transmission and torque converter and whenThe tcc apply stratrgy on your controller may include 2nd gear. Long story short, I had the trans replaced TWICE under warranty since purchase. Nov 7, 2022 · Alvin@pcmofnc. The tcc does lock sometimes but then after 15 or so seconds unlocks. So to keep the converter locked at 0% I change low speed VSS and high speed VSS to 256, and the rest to 0%? Do I also change the 2nd apply and 2nd release table to 255? [Archive] 4L60E, 4L80E, 4T60E etc transmission tuning, incl T42 TCM. 1 with the 4L85E transmission. Its a jakes lvl 5 d3 transbrake 4l80e\circle d 3d 3000 stall 258mm. The tune that works is set to -20 the other is set to 0. 6 - 5. I Sep 13, 2013 · I can scan my transmission TCC Slip RPM and the Slip % but the trouble is I don't know what would be good or bad if I seen it. We can either reprogram your existing transmission control module (TCM) or provide you with a new one that is already tuned for a 4l80e. 1st-2nd bounce rev limiter! TCC Tuning! TCC Lock 3rd at WOT? How to soften part throttle shifts: time or pressure? No Shift Locked TCC file? Understanding Adaptive Learn? Need help changing base idle transmission pressures with PCS. So if I want my 4L60E to kickdown to the next gear at a lesser TPS position, which way would I adjust the curve? Would the upshift & downshift Mar 8, 2018 · The TCC is controlled by multiple tables in the PCM. This is my first time tuning. 1997 4l80e HD2 kit Triple disk converter What was happening is the pcm would not control lockup. the consequence was that the converter would not unlock when told to at higher pressures, there was a large delay that was unacceptable. 4l60e 4L80e Swap Transmission Tuning from $150. 4L60E has these circuits: - TCC PWM, - TCC Enable, To lock TCC, the PCM drives TCC PWM to some high value and drives TCC Enable to ground (i. My truck is an '01 2500HD 6. 1 TCC Minimum Speed and Factory Lockup-Shift Tuning Line Pressure PID for 4L80? 4L80E 3-4 Large Shift Time Error/TCC Cycling After Shift 4l80e Swap with COS5 single wire P/N in gear setting 4L80E Stock file with 01250003 OS? Burning transmissions like marshmallows at a campfire Ls1 12225074 4l60 to 4l80 conversion. I'm assuming the downshift points are similar to a kickdown or TV cable as for their purpose. Trying to improve efficiency and responsiveness a bit as the stock transmission calibration does not at all make use of the torque the 8. 7. 0 with vsr 88mm t6 and I am only running 12# of boost. No transmission tuning. 1 TCC Minimum Speed and Factory Lockup-Shift Tuning Thread Tools January 10th, 2022 #1 gearheadE30 Jan 21, 2025 · Re: 4l80E Tune help by TurboBob » Mon Feb 10, 2025 5:26 pm Did you install the diodes for the ECP and TCC circuits? Without the diodes the tuning of pressure and TCC will not be very linear Sep 20, 2024 · I added a 2009 4L80E behind the SEFI Olds 358 in my '70 Cutlass S. Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission 4l80e tcc still locking Page 1 of 2 1 2 Last Results 1 to 20 of 23 I have been looking at the posts pertaining to torque converters. It either works great or it does some screwy stuff. I can watch the pressure changes. 1/4l80e 10-03-2017 #56 Ramzo358 Potential Tuner 23) work in addition to the TCC Parameters by offering additional tuning based on vehicle speed. Oct 23, 2014 · 4l80e Tcc will not lock 24x swap Started by anniversaryss, 09-27-2025 Replies: 10 Views: 1,081 anniversaryss Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission 4l80e not locking up Results 1 to 8 of 8 4L80E/4L85E 8. Currently the car will sometimes shift all the way up into 4th gear and lock the converter by 35 mph not every time, this is with very light throttle. '92 Ford Mustang GT: 385"/6. Calibration and Config files will not open directly from the site, they must be downloaded to your computer in order to open. I am a complete nu b when it comes to TCC. The only outlier that seems to be the issue is " tcc misfire off" is the only one that says yes that I cannot get rid of. I recently had my torque converter rebuilt and I'm still having this issue. And then min varied from ~20-~70 nearly matching stock 80e values (about 10-15% higher for a firmer lockup). 1 avalanche Tcc will not lock on its own. The TCC PWM Duty cycle max table was 100 across. I haven't been able to full throttle yet due to the slipping and fear of damaging something. 5, Amsoil, 2005 Avalanche 6 way power seats. 3L 411 Fbody PCM 4l80e segmant swap. I put on all new lines and a new cooler. So far i'm having mixed success. I tend to ramble a bit in Oct 12, 2014 · Tony B 02 TrailBlazer LTZ 4. tune and log attached. do not drive TCC PWM directly from TCC PWM), - remove/ignore 3-2 control signal. Aug 25, 2016 · Funny, because I've probably built a dozen of these, but never owned a truck with one. I attached my tune with the 4l60 and and with the stock 4l80e segment swap done Info about trans 1999 Aug 1, 2021 · I have two questions: #1 These are my TCC settings and it works as intended when driving the vehicle (I can feel the TCC lock and the RPM drop). Here's a base to help launch your tuning. Is there anyone possibly making CAX files for this?? Hello i have a 4l80e and 6. Modifying these values is recommended for high stall or aftermarket torque converter users. Jump to Latest 5. So you are just riding around in 4th gear which from a Forum Tuning Petrol / Gas 4speed RWD/FWD Transmission Tuning (incl T42) 4l80e parameters to prevent TCC from disengaging in 4th gear Forum Tuning Petrol / Gas 4speed RWD/FWD Transmission Tuning (incl T42) 4l80e 4th gear and tcc problem (running from 4L60E segment) Feb 15, 2023 · I'm hoping someone here can shed some light on why my 4L80e is not locking up. 200" forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration . From there I contacted a few of my tuning buddies and seemed to get a common response about 4l80 segment swaps. Looking to get some input on what I should be tuning out, and adjusting for my 4l80e swap. First issue - the stock converter tables lock the torque converter in 4th gear at 45 mph, which is around 1600 rpm. andrewb70 Senior Member Join Date:Dec 2014 Posts:4813 Share Tweet #3 08-16-2022 May 17, 2017 · Forum Tuning GM V8 Tuning GM V8 Tuning - Engine, Gas (Gen 3) OS 12216125 with 4l80e Results 1 to 20 of 20 Hey guys, I'm trying to tune the lockup on my 4L80E/Precision Triple Disc setup. Forum Tuning Petrol / Gas 4speed RWD/FWD Transmission Tuning (incl T42) 4L80e converter lockup fix when letting off throttle? Has anyone had success with their tuning for the 8L90 in the 2015-2020 GM trucks? If so are you willing to share details of your results and your tune file? I have been going through and have decided on the DOD Disable and omitting TCC lockup in the lower gears, but I have heard mixed things about people playing with pressure changes and temperature compensation and I am wondering if anyone Can someone offer any pointers on tuning a 4l80e, as far as must do's or essential tweaks that 4l80e's need. Also we have set the TCC to engage at 58 Apr 9, 2015 · 2000 4L80E TCC operation I have a 2000 Classic Sierra 2500 with the L29 and black box PCM. Our harness requires basic changes in HP tuners, but we will also want to edit your shift points to accommodate the 4L80e’s different gearing. 1 has to offer. Lt1 24x 2002 Tahoe flex OS 12216125 with 2bar OS ( 4l80e segment and diagnostic swap from a 2002 8. The trans was making some noise, and I tow a car hauler with vehicles 4L80E has this circuit: - TCC PWM, To lock TCC, the PCM drives TCC PWM to some high value. 2/4l60e 01 2500 suburban 6. TCC ETC. Feb 18, 2015 · In your part throttle speed> shift speed vs TPS > normal table: From 0-12% TPS, your 2>1 MPH needs to be lower than 3>2 MPH. Im running a Yank 9. Jan 11, 2019 · So I previously thought that the lack of a speed reading at the ECU as causing the shifting issues that I am having. This Sep 11, 2011 · Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission keeping you truck's 4l80E tcc locked while off gas Page 1 of 2 1 2 Last Results 1 to 20 of 25 I'm just trying to double verify other than activating the Transmission ICF, selecting the correct Transmission, Tire Size, Gear Ratio and all that goes along with the tuning portion of the transmission? Is there any specific pin-outs that need to be done other than what's already setup in the Inputs/Outputs tab for control? Tq Conv Cl = This takes you to the torque converter clutch menu, allowing you to adjust aspects of the TCC. The harness was originally set up for a 6L90e, but we used a conversion harness from DSX Tuning to run Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission T42 4l80E TBSS TCC Problems Results 1 to 8 of 8 Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission more 4L80E tcc questions Results 1 to 5 of 5 Feb 6, 2021 · Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission 2000 K2500 4l80e tcc Results 1 to 12 of 12 Jun 26, 2023 · You're not looking at (or programming) the TCC Lockup Settings in Basic I/O - System ICF, correct? A 4L80E transmission uses all control parameters from the Transmission ICF. 4L80E Videos (For firmware version 5. 2005 5. It had a strange pump noise (clattering) so I changed the pump for a rebuilt GM unit but forgot to do the mods inside it for the fluid drainback (some kinda hole you have to drill). 1-2 feels great 2-3 seams a little sluggish under wot everything else while cruising feels good. I've called tech support and they did verify that it's indeed locking up when commanded. Trans is freshly rebuilt with all new internals and electronics with a FTI 3200 billet converter. i tried changeing it to -20 but it wouldn't let me it just keeps going back to 0. 623" lift 114° LSA H/R camshaft, TFS 1. My set up is LY6/4L80e with E38/T42 in a 1966 GMC. Specifically when using an aftermarket stall converter? My trans tune is stock for the most part, I previously had a 4l60e and recently did the 4l80e swap, segment and repinned etc. I have a 2002 2500hd with a 6. More specifically tables with zero throttle input. I am at a loss on that one After getting my Extreme Automatics valve body installed into my 4L80e LS turbo powered 240sx I needed a way to not only lock up my converter but lock it up only in 4tgh gear. Aug 23, 2013 · I am trying to figure out why my tcc slip is so high? Can I get some help? the trans is a 4L80e with a ck performance D3 valve body, a triple billet triple lock up 4300 stall converter , and I am getting 1200-1500 tcc slip in 3rd gear at 5000+ rpm. May 8, 2019 · Something to think about when tuning the converter that took me way too long to wrap my head around: there is no "default TCC off" when shifting into the next gear. 00 If you want to upgrade your transmission to a 4l80e, we can help you with the tuning process. I've changed fluid/filter, TCC valve and solenoid with no results. One pass it will lockup fine, next pass it won't. If wired up exactly as the diagram at the bottom of this post you should have no problems controlling your 4L80e. When I bought it, it was shifting harshly. My converter has never locked up, even after dyno tuning. Anyone have any ideas? It almost feels like when the torque converter engages, the car pulses like it's lugging the engine. Your downshift MPH needs to be less than your upshift MPH and lower than the previous downshift if you can follow me. In this video, learn the basics of safely tuning a *car* with a stock *transmission* on a 2004 *gmc yukon xl**. Most 4L80E calibrations lock the torque converter at WOT from 2nd gear and beyond but tend to keep it unlocked in 4th until you are rolling at a good speed. 2 4-bolt siamese block, Eagle 3. Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission 07 Tahoe 4l80e swap Results 1 to 3 of 3 May 20, 2021 · Terminator X EFI Tuning & TechI have the gauge running up to the windshield as I drive. The overlayed on this table doesn't match. Picked another that added shift tables (other one had none), still the Feb 21, 2017 · HELP 4l80e TCC tuning questions I recently had my 4l80e rebuilt and looking for some tuning information. I datalogged traveling at a constant 73 MPH in 4th gear with TCC locked, but this table doesn't match. 2004 Silverado 2500, 6. Can anyone tell me what this table does or is used for? #2 I'm looking into a minor issue where the Jul 15, 2025 · Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission 4l80E No TCC Results 1 to 3 of 3 Jul 22, 2019 · I apologize in advance for the long post, but I don't know how to condense it. Long story short I am now dealing with a 3600 stall SINGLE disk converter from Yank. Lock up TCC question. The video covers the limitations of the 4L60E and 4L80E transmissions while using Thanks for this information. Lockup is only commanded for 4th gear. motor is a 6. I am trying to make this last by not locking up under WOT. With the help of Terminator EFI Tuning & TechHello. The car is a 71 Chevelle with an LSA and a 4L80e. My two P01 truck's factory tune have those values at 97-98% across the board. Those transmission can handle the abuse, so the calibration file was allowed to use that feature. 0 4l80e. That doesn't affect the harness/softness of the tcc apply. - The 1947 - Present Chevrolet & GMC Truck Message Board Network > > > If your shifter is in 4th gear but transmission is in 3rd gear with TCC locked, when you lift off the throttle your converter is prob still locked but your overrun clutchs arent holding, only the sprag is. Aug 9, 2022 · Terminator X EFI Tuning & TechMay God's grace bless you in the Lord Jesus Christ. Im having issues with the trans and i believe the issue is the tune. 5 ( this is why a 4L80E conversion cannot use the TCC PWM signal to directly drive the TCC PWM solenoid it must use either the TCC On/Off signa,l or it must use a relay to gate the TCC PWM signal with the TCC On/Off signal ). - The 1947 - Present Chevrolet & GMC Truck Message Board Network > > > Forum Tuning Petrol / Gas 4speed RWD/FWD Transmission Tuning (incl T42) 4l80e parameters to prevent TCC from disengaging in 4th gear Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission TCC Tuning for 4l80 Results 1 to 8 of 8 Oct 31, 2020 · 4L80E INITIAL SETUP. I'm not sure what happened here as I'm using an GCF 4L80E from Holley's pre-configured base calibration. Mine will lock up on speeds of 55 MPH, or greater, and will unlock if I give it more than 30% throttle at ANY time. JD has told me that with that tune he was getting no lockup. I already have a custom tune from a professional tuner, but am looking for TCC tables. Jan 10, 2015 · TCC tuning Click on the "SUBSCRIBE" tab to sign up. Jul 9, 2023 · I'm experiencing some very slight converter shudder whenever the converter locks under low throttle just before the lockup occurs. I added the 4L80E and picked the default one off the list. First Question: Dave from yank told me to unlock anything past 40%. As a base i used Blue Cat's transmission software with my specs and entered the values in under the Normal diving conditions. Everytime you let off the gas, the TCC unlocks, and then relocks when the pedal is reapplied. I was hoping to find some insight on controlling my TCC operation. . And then a slight tweak to the max and min DC tables brought lockup back to life. I have a custom tune, but the transmission is locked out. GMT800 4L60E calibrations do this much lower, in the 1100 rpm region, and it Sep 12, 2006 · 1998 C3500HD VIN F, Cab and Chassis, 15GVW, 6. However, I have very little knowledge on the logistics of tuning. The reason you may want to drive a 4L80E from a 4L60E segment is that the car segment keeps the TCC locked on zero throttle, this gives a manual trans feel. The TCC regulator valve will start to feed drive oil to the PWM solenoid in advance of third gear 'lock up' for the converter, however if it the clutch is Jan 18, 2022 · 2004 Suburban 8. LSx Swaps Apr 14, 2014 · Easier 4L80e swap Please read this whole post and all post I have mentioned in it, I tried to leave as much info here as possible. LSx Swaps4L80e TCC Issues / Tuning. In your part throttle TCC, Your TCC release is 56 MPH but then your 4>3 downshift is 22-29 MPH. The TCC will remain at whatever state it was previously in unless you are below the TCC release speed in the gear you just shifted into. 4L60E is further complicated by the fact that the PCM will spike TCC PWM up/down while TCC Jan 15, 2020 · He pointed out trying to use the scan tool to lock the TCC and if that can't be done then manually grounding the control wire to confirm it functions in fourth. Todays issue is the TCC lift release on a 4L80E, I have read that it can be adjusted in HP Tuners? If this is true could someone please point me in the right direction? Back to BC, press next, then copy table, and paste that into Transmission - Auto Shift Speed - Full Throttle Shift RPM - Normal. 0 - The torque converter will lock on the highway like it should but after a mile it will unlock - at that point I can enable the converter lock up with the function in the VCM Jul 24, 2015 · Can anyone help me with the part throttle and wot tcc lockup? Im using the Bluecat tables and the Transmission feels good. Please post your GCF tune and a datalog. This keeps the TCC from locking up during ‘around-town’ driving if it is not desired. This is a fixed line pressure unit. Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission GM 4l80e TCC lockup and "shift time" issue: logs, tune, and pictures for speedy diag Results 1 to 4 of 4 I recently swapped a 4l80e in my 2001 Camaro I did the segment swap and was wondering if anyone can look over my tune file and help with performance tuning every thing seams to work right no codes. 470" forged steel crankshaft & H-beam rods, Wiseco 4. Nov 10, 2020 · Well, sadly my 4L80E after a rebuilt bit the bullet. I am using an E67 ECU and a T42 TCM. In my application, I used a 04 4l80e with a trans-go shift kit. I'm looking at a stock converter in a 2005 Silverado 4L60e converted to a 4L65e with a Sonnax performance pack and their super hold servos with good frictions and such. I am getting a Yank tt3200 and i'm doing a 4l80E swap, so that's the tranny it will be in. 3L SBF, Dart SHP 8. You can adjust the apply/release tables to suit your needs after a cam change, but there isn't a reason to adjust this table. I have a friend with HPtuners, and I will be using it. What I did Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission 4L80e Lockup Results 1 to 6 of 6 Oct 21, 2020 · Hoping someone can help me with tuning on the Terminator X Max transmission tuning. This video walks you through the options under the Throttle Position Sensor settings page of Shiftware. 72 ratio full I have a 4L80E in my 1/2 ton truck which I have adjusted most of the shift data to include TCC stuff. Thanks to a question I asked on the HP Tuners Dec 8, 2016 · Forum Tuning Petrol / Gas 4speed RWD/FWD Transmission Tuning (incl T42) My experience with my 4L80E on T42 swap with This will likely work just fine with the other Holley items such as the HP or dominator, so long as you have transmission controls. com - Sales@pcmofnc. e. SHIFT SCHEDULE. Would the Slew settings on the TCC screen have any impact on this? Thank you. 5 turbo. I installed a Transgo HD2 kit in it as well. 0/4l80e 01 2500 suburban 8. It didn't shift and surged in & out of gear. what can be adjusted to lower the slip under full throttle. You can choose to either send in your own module (s) (please include ECM if applicable as well even though changes are not made to it), or purchase a core outright Aug 11, 2025 · Thread Tools 08-11-2025 #1 PBJ83CAMARO Tuner Join Date May 2018 Location St Paul MN Posts 52 Stock everything 4l80e tcc slips looking for help on what I need to data log to help find my issue. Now I am thinking that it is more of an issue with the TCC rather than the shift points. This video walks you through the options under the Speed Sensor & Gearing settings page of Shiftware. I tried marrying the two. Back in BC, press next, then copy table, and paste that into Transmission - Auto TCC - Apply/Release Speed Normal - Normal (leave release alone). I will not respond to technical questions unless you are a paid subscriber. When it electronically shifts to 4th, the converter locks up shortly after, and it Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission 2004 4L80E TCC Setting or problem Results 1 to 10 of 10 Forum Tuning GM V6 Tuning GM V6 Tuning - Transmission Need help understanding TCC Duty Cycle Results 1 to 10 of 10 Jul 3, 2023 · Alvin@pcmofnc. And not, nice shift Oct 17, 2013 · The latest tune I tweaked has pretty ideal shift and lock up speeds. 3, 4l80e, dbw (aces says no need to hook up the brown wire on the extra wire loom) The question I have is, Do I use the brown TCC wire in the aces kit? And where does it go? May 1, 2012 · - drive TCC PWM from either TCC ON/OFF or from TCC PWM gated thru a relay controlled by TCC ON/OFF (i. I'm wanting to lockup the converter clutch right after the 1-2 shift. But apparently the shift points are out of whack and the TCC is locking Jun 7, 2014 · I have a 01 s10 with a 4l80e transmission 3600 stall. RPM. If a moderator or somebody that really knows Okay So last summer I was having an issue wih my 4l80e swap. This includes cruise gear, minimum RPM, and WOT gear. Description Using our 4l80e swap harness (link) and need 4l80e tuning? We can help. 8K views 11 replies 6 participants last post by 79540 Nov 11, 2020 79540 Discussion starter Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission 4L80E TCC Slippage Problem Results 1 to 6 of 6 [ reason: the 4L60E controller spikes TCC PWM while TCC On/Off is off ] If the PCM is programmed with the 4L80E segment, yes you can use the TCC PWM signal to drive the TCC PWM solenoid in the 4L80E but you have to make sure that the pinout at the transmission plug is modified from the 4L60E pinout (TCC PWM is on a different pin). Feb 15, 2016 · 4L80e TCC Issues / Tuning. 0 swap. ) This video will help you get started with tuning the Quick 4 on a GM 4L80E or 4L85E transmission. I just finished my 4L80E swap into my 2000 Silverado. 4L80E w/manual TCC lockup switch, 4" exhaust turbo back, no soot trap, Boost and EGT gauges on pillar, 4:63 gears, 225/70/19. e67/t42 recently purchased the 4l80e swap harness to make the t42 work with the 4l80e. I think That's the maximum torque converter clutch duty cycle table. In Normal Shift mode, the clutch is FAIRLY consistent to lockup, but in Performance Mode it's very hit/miss. Forum Tuning GM V8 Tuning GM V8 Tuning - Transmission 4l80E TCC control Results 1 to 1 of 1 Oct 14, 2010 · Torque Converter Tuning Torque Converter Clutch Duty Cycle (TCC) Maximum & Minimum Pressure: This section deals with the TCC PWM (Pulse Width Modulation) Apply/Release pressure. The TCC Lock During Shift is available only on truck calibrations, and even then I think only on 4L80E equipped vehicles/calibrations. Want good firm chirping shifts/lockup and avoid TCC lockup Jul 6, 2011 · The only difference I see is in trans diagnostics table under TCC clear min slip rpm. I have a 2007 CLASSIC GMC Sierra 2wd, that I swapped a 4l80e into. 3 I show you how to tune a Gen 3 4L60 which is very similar to the 4l65e and 4l80 trans. My tuner said that is was most likely the converter (Circle D 2400 stall) so I sent it in to them and there was nothing wrong with it. NEW!!! I will make one calibration change for an additional $100 per change. (Looked thru the search no answer on if i need the brown or not with the harness i have) 5. Was wondering what to change, i kinda understand what you guys are talking about in the threads, but i don' t feel confident enough to do it myself. edmhsa icb wawc jroom ovry czd hjscx hxmui cndogfs zlv tvdsx ooirrn yxhijmk cdshaj iwpb