One of the more common issues that arises when swapping 6L80 TEHCMs is due to a running change made sometime between 2013 to 2014. New instrument clusters now provide Transmission Fluid Temperature data. This means the TEHCM is fitted with a program to provide both Transmission Temp for the TCM and for the Instrument Cluster.GM indicates the normal operating range for a 6L80 transmission (without thermostat) is 180-200 degrees. I wont be able to help with your tune, but I've been monitoring transmission temperatures for over a year. Here are some basic observations Higher speed = higher temperatures Changing gears adds heat rapidlyFYI, 4L60E and 4L80E's in up till 2007 classic trucks typically ran cooler by nature than the newer trans 6L80E and 6L90E. I think the newer trans have some kind of provision in it to help it get up to 180. ... First step, put a scantool on it and see what the ECT PID reads. If it reads around 195-200 at operating temp you need a new cluster ...And I have never heard of moisture problems with the allisons due to cold temp operating. But truth is, the cooler an oil is, the longer it lasts. And some guys argue that our 3.0's dont get their best fuel mileage until the trans hits at least 150F.And that makes no sense at all. I just want to know why they are doing this differently now. 2014 Blue Granite Silverado LTZ 4x4 Crew. HP Tuners DOD,TM, Limiters deleted, Airraid Jr CAI, Kooks 1 7/8" headers, 3.42 G80 12 Bolt 9.5, Bilstein 5100's. 6L80e PML Pan and Bypass Delete, "HP Catch Can". Angry Old Salt.The factory 6l80 transmission thermostat is designed to keep fluid in the transmission until it opens up at about 190F degrees. While the 6l80 is a fairly stout transmission and can handle some abuse, keeping the transmission temp at or above 190F is (in our opinion) is less than optimal.Buy ACCYPRO STL010 Transmission Cooling System Upgrade Kit cooler flow bypass valve upgrade kit Fits for 6L80 6L90 8L90 8L80 8L90E 10L90 ... Transmission cooling system upgrade kit can effectively reduce overheating the load by reduce the average operating temperature, which greatly increase the service life of ATF. Built in safety bypass ...123 posts · Joined 2009. #6 · Mar 22, 2014. When I was bone stock I saw temps between 180 and 210F with spirited driving in a northern climate. With all my mods now I haven't seen higher than 208 with trans cooler. I am on stock converter though. *SOLD* 2009 G8 GT, Roto-Fab intake, Magnaflow catback, TVS 1900 @ 9 PSI.Welcome to the General Motors 6L transmission diagnosis and troubleshooting series, including the 6L45, 6L50, 6L80 and 6L90. I will provide information on ho...Dec 19, 2020 · Asked by Visitor in Grovetown, GA on December 19, 2020. Just got a new 6l80 put in my truck and noticed the trans temp was a little higher than the old trans. I plugged in my snap on scanner and it showed two different trans temps. One was transmission fluid temp which was about 190 which is normal. The other was TCM temp …Replacing the Thermal Bypass Valve (thermostat) on GM 6L80 Transmission referencing TSB 21-NA-199. This Silverado went from running around 190 F to 145 F!!!...May 31, 2022 · Clutch Failure. First Gear Slipping. Reverse gear engagement failure. Cracked clutch drum. Stator support issues. Cracks in the 1-2-3-4 Pistons. Issues with the 1-2-3-4 pistons are common in 6L80 transmissions. The piston typically gets cracks that result in clutch failure. However, GM updated the piston.Nov 16, 2023 · W00030 Rev 1.1 31AS Properly fill with Dexron VI Automatic Transmission Fluid: Fluid Fill Procedure with Dipstick BEFORE YOU START THE VEHICLE fluid must be touching the bottom of the stick. Make sure the Vehicle is on level ground Start the vehicle and move the shift through all ranges pausing for 3 secs in each range. Final level check, …The 8L90E is an 8 speed automatic transmission developed by General Motors and introduced for the 2015 Model year. It is currently phasing out the 6L80/6L90 transmissions (although it hasn't done its all the way yet. Structurally, the 8L90 is similar to the 8L45, except that it is made to handle more power and torque. It is an incredibly advanced transmission and has the technology to ...exceeded an operating temperature of 90°C (194°F). Once the TFT has reached or exceeded 90°C (194°F), then turn OFF the vehicle and allow the TFT to cool back down to 35-45°C (95-113°F) before checking the fluid level as required. Reaching or exceeding an operating temperature of 90°C (194°F) opens theThe 4L60E, the 6L80's predecessor, was a four-speed medium-duty transmission, while the 6L80 is a six-speed medium-duty transmission that was designed for higher horsepower vehicles. The 6l80e has an RPO code of "MYC" and is manufactured in Ypsilanti, Michigan. The transmission uses direct clutch-to-clutch shifting and does not have bands.Jan 23, 2015 · I have always wondered what the max tranny temp should reach on a 6L80? 240? I have asked around; some say 220 next one say 240 since it has Dexron VI. And …6L80E Specs + Identification; TH400 Transmission Specs, ID, and Common Problems ... or high transmission fluid temperatures. These issues can be caused by various factors, such as high operating temperatures, worn-out gears, or a failing cooling system. Causes of GMC Yukon Transmission OverheatingFord says the normal ATF operating temp range for the 10R80 transmission is 206-215 F. I have never seen mine above 190 F. I do have the Max Tow Package with external trans cooler and I'm wondering if this has anything to do with it not going above 190 F. I've even taken it on 300+ mile highway trips in summer, but still nowhere near 206 F.The trans temp is ususally about 80 degrees due to the summer temp. The 1-2 shift is normal, but it has been having the 2-3 rpm slip with rpm flare. The trans engages 3rd somewhat severly due to the increase of about 4-500rpm. As you drive this symptom goes away.Type: Six speed RWD / AWD, electronically controlled automatic overdrive transmission with torque converter clutch. Clutch-to-clutch architecture, with integral Electro / Hydraulic Controls Module ...Installing a thermostat delete kit on the 2014 Silverado, if you're having trans temp issues this is the kit you need, it's cheap insurance for your transmis...Apr 1, 2010 · Normally, if you can stay below 200 degrees, you can expect a fairly long life. Here's a general temp chart to longevity. Keep in mind this is general. Your specific application may differ. 2010 2SS/RS Auto, Sunroof, Engine Cover. Transformer Edition package. 2013 ZL1 ragtop #5478. 1 of 54 CRT M6 'verts. Like.Fast Learn Basic Requirements & When/How it Should Be Initiated. Fast learn should be initiated after any type of transmission repair. This includes a transmission flush with new ATF, provided the flush is to correct TCC shudder or slip. Temperature must be at 167°F (75°C) and 185°F (85°C), but it also depends on current TCM programming.550. E38 or E67 should work. E38 seems to be the most common. Neither will work with a cable operated throttle body. Whatever 6L80 compatible controller / platform you decide to use (Camaro / Corvette / Truck), you will also need to use the matching electric throttle body and electric gas pedal. 08-29-2014 #3.Keeping the transmission temperature between 175 and 200 degrees will allow the fluid to last the longest. This is the normal operating temperature for a transmission. Remember the fluid is the life line or blood of the transmission. Damage to the transmission fluid begins at 225 degrees. Towing, pulling heavy loads, Snow Plowing and stop and ...Oct 13, 2023 · However, in some cases, the transmission may never reach operating temperature and may not allow shift adaptation. While this is an exception and not the …6 TCM-TEHCM-SERVICE-GUIDE_566318076 • 10/2020 GM 6L80: TECH TIPS 609-002/609-003/609-006 CONCERNS BEFORE / AFTER REBUILD In some instances, a vehicle may exhibit delayed engagement, or even a harsh thud or clunk into reverse.Graduated engineer with a BE focused in Mechatronics, Robotics, and Automation Engineering from Air University having a demonstrated knowledge for working in the fields of Machining, Manufacturing, Robotics and Electronics. Skilled in Electromechanical Systems Assembly, PLCs, SolidWorks, Embedded Systems and Professional Documentations. · Location: Islamabad. 500+ connections on LinkedIn ...6L80, 6L90 2011 - 2016 ATS 4DR Luxury Sedan, ATS 4R Performance Sedan, ATS 4DR Premium Sedan MYA, MYC, MYD, MYB 24275874 6L45, 6L50, 6L80, 6L90 2010 - 2013 Caprice 4DR Police Car (2011-2013) MYA, MYB, MYC, MYD 24275872 6L80, 6L90 2007 - 2012 STS V8 4DR, STS-L 4DR, CTS 4DR, CTS HFV6 4DR, STS 4DR, STS V 4DR, STS 4DR (RHD) MYC, MYB,The 6L80E is a robust six-speed automatic transmission commonly found in a range of vehicles, including trucks, SUVs, and sports cars. ... provide the extra power and torque needed for these tasks while ensuring that your transmission operates within safe temperature ranges. This results in more confident towing and hauling experiences. Better ...Is your 6l80e or newer transmission from GM overheating. These are some tips and an often times over looked culprit. The thermal bypass valve should be repla...Cruise control, yes wile on flat land. Hilly land, I take over. 70-75 degrees outside temp the tranny will rock about 185-200 depending on the starts n stops. Once the outside temp gets to 80-85 plus she will sit right about 200-210. Then I come up to a couple stop lights and that is when she will climb to 220-225.We can push 215-220F towing a ~6000# trailer up and down slow hills, near max truck pay load. But with just the 2 of us, we max out at 110-110F above ambient. Now, I've heard anywhere from 225F to 250F as "stay below" temp, but have also checked thru GM lit, unsuccessfully for this.Engine Runs Poorly at Operating Temp . 5 Erratic Idle Condition . 6 Incorrect Fuel Pressure . 7 Magnetic Distributor Timing Control Setting Crank Reference Angle to 45° 8 Holley Dual Sync Distributor Timing Control 199R11369 Date: 7-28-17 . Author: Matthew D. Lunsford Created Date:94 posts · Joined 2021. #1 · Jan 10, 2022. I've heard some chatter that GM released an updated thermal bypass valve for the 60l80e 6 speed transmission. The updated valve is suppose to allow the transmission to run cooler. Opening at 158 degrees instead of the 194 degrees F. I can't find an updated part though.6L80 (One-Piece) 4-5-6 Billet Shaft & Hub for use with OE Steels and Clutches - Level 2.5. 6L80 (One-Piece) 4-5-6 Billet Shaft & Hub for use with OE Steels and Clutches - Level 2.5 ... The ideal operating temperature for this transmission is 180°or less. These transmissions have a tendency to run very hot - the cooler will lower operating ...You get warnings in the 260s and shuts you down at 270. The fluid can handle even more. That being said you're fine just keep changing the fluid every 36-45K miles, not 100K, and sooner if she gets hot while towing. It's cheap insurance to a long life. 2009 GMC Yukon XL SLT 5.3 K5L - 2012 GMC Sierra SLT 6.2 NHT - 2013 GMC Sierra SLT 6.2 GAT.Our 07 6L80 does the 2-3 upshift flare but only when below normal operating temp and only above 3000 rpm. Anybody know what the DIY fix is (or not)? Should I be worried? I don't tow and I drive conservatively. Otherwise no issues. Has always done this since we bought it 4 1/2 yrs ago w/130k miles. It now has 187k miles.Jan 23, 2008 · I've been told 190 to 200 is about average. birdy Discussion starter. 28 posts · Joined 2007. #4 · Jan 25, 2008. I do have a temp gauge, it was creeping over 206 and then it drops rather quickly then few minutes later could be high again? I think I need to check the fluid level (where can you check and add tranny fluid?) If its going up and ...Airline Operating Expenses - Airline operating costs range from airport space to fuel costs. Learn about airline operating expenses on this page. Advertisement ­Running an airline ...The 6L80 can use either a 258mm or 300mm torque converter. The 6L80 is ideally suited to complement GM's LS or LSX engines that are used in two-wheel drive applications. With a modular design, 6L80 transmissions remanufactured and sold by Certified Transmission have components that are common to the six-speed group of transmissions.Jul 20, 2014 · Normal trans temp on 2013 1500 6 speed. I have the 5.3L with the 6 speed automatic, and the HD cooling package with the little radiator up front. What is the maximum temp the trans can operate at before damage? I've had it up around 180 to 190 degrees F while driving (sometimes pulling a trailer). I haven't gotten any dash warnings or lights ...Jan 4, 2016 · 175F to 200F is considered ideal operating temperature for a transmission (some sources say 160-180), and 150F is considered minimum ideal operating temp. If you only ever get the temp to 175F, your fluid could last 100k miles in theory; if you run at 195, you're looking at a 50k service interval.Sep 10, 2022 · A short clip on how to accurately test if the 4 pressure switches(under the orange films) properly opens their respective circuit when pressure is applied to...May 31, 2021 · This is the second part of a three part series covering the 6L80/90 torque converters and their issues and failures. In this video, I go through the interna...Since so many of us own at least one Tahoe or Yukon equipped with a 6L80, I figured I'd start an all-encompassing transmission thread with videos, links and other information as it relates to the 6L80/90 transmissions. ... Operating Fundamentals and Using Range Charts. Quick primer on TEHCM resistance testing: > Review this article for the ...Reducing 6L90E temperatures. I've been trying to reduce my 6L90E transmission temp for a while now. It's in a 72 chevy 4x4 with np205 transfer case and dual exhaust. The transmission on a 70 F day runs at 185 F, the issue really starts when climbing. It doesn't matter if it's a curvy road with a lot of shifting or a straight long grade temps ...5. Reaction score. 0. 5.3l trans. temp. I would say the readings you are seeing are perfectly normal. Consider that the transmission cooler runs through the radiator. The coolant also runs through the radiator. If the coolant coming from the engine is 190-200*, it would stand to reason that the trans temps would be in that range too.8.1. Get the transmission fluid temperature to the proper temperature outlined below. 8.2. Remove the DT-51190 fluid fill adapter and DT-45096-31 TransFlow adapter. 8.3. Install the level set plug. Tighten Tighten the plug to 9Y(80 lb in). The TCC shudder condition should be directional improved immediately after the fluid exchange procedure.Extreme Temperatures: Operating the vehicle in excessively hot or cold environments can put additional stress on the transmission, impacting its performance and potentially accelerating wear on components. What Are The Symptoms Of GM 6L80 Transmission Problems?Mar 26, 2012 · I really need to know the normal operating temperature for my 2010 SS L99 Engine and Transmission. 13,000 miles My readings are as follows: Engine oil temp: steady at 230-235 (86 degree weather) Transmission temp: 240 (with a bit of aggressive driving, never exceeded 240) 230-235 normallyLubricate a new 4-5-6 clutch piston with small amount of Trans-Jel® on both seal surfaces and install it into housing as shown in Figure 77, using a twisting motion. 7. Install the 4-5-6 clutch apply piston "bellville" type return spring, as shown in Figure 77, with the fingers facing up.First introduced in 2005, the 6L80 transmission is a 6-speed automatic gearbox that is made by General Motors at their Willow Run transmission factory in Ypsilanti Michigan, and at their transmission plant in Toledo, Ohio. They are designed for RWD and AWD/4WD applications, and feature clutch-to-clutch operation with a wide gear ratio for ...Getting to Know the 6L80/90E. The General Motors 6L80E and 6L90E 6-speed transmissions were introduced in the late 2005 General Motors truck line as a successor to the 4L60E and 4L80E. It features clutch-to-clutch shifting. The 6L80/90E transmission consists of five clutch sets (1234, 35R, 456, 26 and LR), a planetary set, and a low clutch ...2 days ago · To combat transmission temp issues, installing an aftermarket transmission cooler is certainly helpful along with a deeper, higher capacity transmission pan if you have the space to do so, and thermostat bypass. 4l80e Transmission Filter. ... 4l80e vs 6l80: Difference Between 4l80e and 6l80 TransmissionsSince the CEL came on the first step is to get any stored codes read, usually done for free at parts stores such as Autozone. Then post the codes here, format is P0123. As far as the temperature, a quick search showed normal range is 195-220 degrees. I own a 2016 Chevrolet Silverado 1500 5.3L. Just yesterday I noticed my engine temperature was ...See a GM notice on a temperature controller for the 6 speed transmissions that should be looked at, changed if it is the higher temp. bypass valve. For the... Forums. New posts Search forums. ... 2007 with 6L80 and 6.2L code U0073-00 check engine and stabiltrak light. West 1; Jul 3, 2023; Engine & Drivetrain; Replies 5 Views 4K. Jul 5, 2023.speed, transmission fluid temperature, and gear command. To Learn C1 (For 6-7 or 3-1 Shift) 1. Pressure Learns: Note: It is recommended to utilize a road with a speed limit between of 48-72 km/h (30-45 mph) for this procedure. • Shift the transmission into 6th gear with the PRNDM in the M position. Obtain an engine speed between 1000 and 1600 ...3 days ago · 6l80 Thermostat Purpose & How To Delete. The purpose for the transmission thermostat is to help with overall fuel mileage, but this is done at the expense of the transmission. Although 190F degrees isn’t the end of the world, it starts to get into that warm range where if you’re towing, for example, you might be in a position to keep temps in the …Are you looking to give your kitchen a fresh new look without breaking the bank? Look no further than IKEA Tempe’s wide range of affordable and stylish products. One of the most im...Aug 20, 2014 · 42 posts · Joined 2011. #10 · Aug 24, 2014. So tonight it was about 64 degrees. Cruising temp was a solid 125 degrees. I held it on the t-brake for about 4-5 seconds and let it build about 10psi, it went up about 2 degrees and then held it in boost for one gear. The temp went up a total of 10 degrees to 135.Jan 14, 2021 · 6L80-E Pump Alignment Clamp. Delivering the Goods | January/February - 2021 The Devil’s in the Details! A Machinist’s Look at the 6L80/6L90 Units. January 14, 2021. 9,371 Views. 7 Min Read. The 6L80 and 6L90 transmissions have become the most popular rear-wheel drive GM transmissions in most of our shops.Ford, Mopar, GM, and others are supported: 4L60, 4L80, 6L80, 8L90, 10R80, 10L90, 8HP70. Skip to content. Menu. All categories Cancel Dealer Portal ... verify that your transmission is operating correctly, no codes are present and the transmission fluid looks and smells good. ... An external cooler and temperature gauge is highly suggested. ...