6l80 transmission temperature

2015 Chevrolet Silverado 2 wheel drive. Transmission is rebuilt, and all clearances on ALL clutch packs checked and corrected and all are within ATSG specs. New torque converter, Trans-go shift kit, new pump. Truck runs & shifts but it has a harsh 3-2 downshift, and a flare shift on 2-3 up, and other harsh downshifts as well. I've attempted to use HP TUners to do the fast learn.

6l80 transmission temperature. The 6L 50 (and similar 6L 45) is a 6-speed longitudinally-mounted automatic transmission produced by General Motors.It is very similar in design to the larger GM 6L 80 and 6L 90, and is produced at GM Powertrain plants in Toledo, Ohio; Silao, Guanajuato, Mexico; and by the independent Punch Powerglide company in Strasbourg, France.. This …

I suspect the computer will advise when transmission temp reach a defined threshold, and if you chose to ignore, the computer will probably shut you down. ... Hoping to get 200k on my 6L80e and I'll be happy. 2008 Sprinter 2500 170 - camper van. 2001 Suburban LT 2WD, 5.3, V8 311,000 miles, leaks oil now at rear main seal

Circle D Transmission Rebuild Kit 6L80 Level 3 quantity. Add to cart-Purchase and earn 2495 G8Only Points worth $ 24.95! *Must be logged in. ... 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 temperature and recovery time which in ...If the transmission cooler has evidence of transmission hard parts failure, it must be replaced. Plate-type oil-to-air (OTA) transmission coolers must always be replaced. Entire transmission cooling system must be completely cleaned, hot flushed, and flow tested. FLUID CHECK PROCEDURE 6L80 / 6L90 transmissions do not typically use a dipstick.So, 85585333 wouldn't be a "drop-in" replacement. You have 2 choices - you can buy 85585333 and swap out the internals of the bypass valve or buy the TransGo kit and swap out the internals. If you use the 85585333 internals you will have temperature regulation at 70C setpoint; with the TransGo kit you completely delete transmission …Buy Remanufactured GM 6L80 / 6L90 Valve Bodies Factory Direct at Street Smart Transmission. (813) 333-5050. Call Us Text A VIN# Mon-Thu 9AM-8PM | Fri-Sat 9AM-5PM EST. Customer Support - (813) 235-0800. ... Transmission Fluid Temperature Sensor Circuit Range/Performance: P0712: Transmission Fluid Temperature Sensor Circuit Low Input: P0713:Shop 6L80E, Adapters and Mounts and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. 6L80E, Adapters and Mounts in-stock with same-day shipping. ... G Force RCG-6L80 Transmission Crossmember, 84-88 G-Body, GM-6. Material Type: Steel. Finish: Black powdercoated. $410.00 /each. Add to Cart. Chevrolet ...On average, the 6L80 transmission can last up to 150,000 miles or more if properly maintained. However, this number can vary depending on the vehicle’s driving conditions and how well it is taken care of. For more insight, you could also check out our explainer on GM’s and Chevy’s 4L60E transmission problems.

Some of the signs that a transmission is bad include slipping in and out of gear, problems accelerating, odors in the transmission fluid and transmission fluid leaks. A slipping tr...After repair has been done on any clutch to clutch transmission, it is very important to perform an adaptation or fast relearn. If not done, you will have dr...The 6L80E Transmission features: New clutches, gaskets, seals, filter, band, and a slew of modern updates throughout the unit, including the valvebody for durability and reliability. All units are thoroughly inspected for peace of mind. This is a stand-alone product, please review the following details: - Free Factory Torque Converter, Stall ...This heavy duty transmission oil pan fits the GM 6L80, 6L80E transmissions. PML designed this pan for 2006 and newer Cadillac, Camaro, Corvette, and Chevrolet and GM trucks and SUVs. There is a fill hole and plug for vehicles with the fill in the pan, such as some Camaros. This pan will fit the GM 6L80, 6L80E transmission.Amazon.com: 6L80 6L90 Transmission Cooling System Upgrade Kit For 2014-up GM Cadillac Chevy GMC and trucks & 2016-up 8L90 8L80 8L90E 10L90 Replace #STL010 Cooler Flow Bypass Valve Kit : ... Ensure full time cooler flow and lube to parts for your transmission cooling system, easy to lower transmission temperature significantly.Excuse me if this has been asked before, I've been out of forum for a few years, but now that I'm buying my first 'Maro with L99 I have a few questions about 6L80 transmission. First and foremost, in the 90s (and later) american cars with automatic transmissions have been known in Europe for overheating of transmission oil due to prolonged ...

This identification guide covers GM 6L45, 6L50, 6L80 and 6L90 valve bodies, plus the BMW early- and late-style transmission separator plates. Note: 6L90 Early-style ('10-earlier) also have the exhaust slots like shown above. Look for machined-down boss (A, B, C or D) on the upper casting. Generally, if the A boss is machined down, this ...Some 6L80 / 6L90 transmissions do not use a dipstick. Proper fluid level is achieved when fluid begins to drip from the ... Verify transmission fluid temperature (TFT) is between 158°F and 212°F. 5. Perform three (3) cycles of PARK – REV. When complete, shift vehicle back into PARK.The 6L80, on the other hand, has a first gear ratio of 4.03, a second gear ratio of 2.36, a third gear ratio of 1.53, a fourth gear ratio of 1.15, a fifth gear ratio of 0.85, and a sixth gear ratio of 0.67. This means that the 6L80 transmission has a wider range of gear ratios, which allows for better acceleration and fuel economy.Some customers may comment that the transmission exhibits a harsh 1-2 shift on the first shift of the day, typically under light throttle. Cause. This condition is due to the initial clutch fill time of the 2-3-4-6-8 (C4) clutch. Information. Some customers may experience a flare condition on the first 1-2 shift of the day or after the vehicle ...It was assigned to me just last week and it's the first time I've had a GM 6-speed. 99K miles. 6.0L. I'm guessing the transmission is either a 6L80 or 6L90. The concern I have is 3rd gear. Whether I'm in "manual" shift or full auto, 3rd is a turd. It does not like to downshift to 2nd when needed, unless I goose the gas pedal hard.

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Bulletin No.: 22-NA-182. Date: September, 2022. INFORMATION. Subject: Information on 6L80 6L90 8L90 10L80 10L90 10L000 Equipped Vehicles With A Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature.The following is the proper conditions for checking the fluid level and condition of the 6L45 / 6L50 / 6L80 / 6L90 automatic transmissions with specific information for the 2010-2014 Camaro. CAUTION: The transmission fluid level must be checked when the transmission fluid temperature (TFT) is between 30-50°C (86-122°F) operating temperature.A 2013 Ford F-150 equipped with the 6R80 Transmission was overhauled and reinstalled back into the vehicle. On the initial road test, the "trans temp" lamp came on. The truck was equipped with a dash-mounted monitor which was set to engine RPM, vehicle speed, engine coolant temperature and transmission temperature.1st Step: Buy one of our O BD-AUS units here for $ 39*. This will allow you to connect your phone to your vehicle easily. All you need to do is find the OBD2 port which will be within 50cm of the steering wheel and you can access it using no tools. It looks like a rectangle plug with 16 pins and slope sides.AUTOMATIC TRANSMISSION FLUID TEMPERATURE SENSOR REPLACEMENT LOCATION EXPLAINEDIf you need to replace the transmission fluid temperature sensor on automatic t...

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.Better Fuel Efficiency: A well-tuned 6L80E can contribute to improved fuel efficiency. By optimizing shift points and torque converter lockup, tuning can help your vehicle operate more efficiently, potentially saving you money at the pump. Customized Performance: Transmission tuning is not a one-size-fits-all solution.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!!!...Verify engine is idling at 0% throttle. Verify transmission fluid temperature (TFT) is between 86°F and 122°F. Shift transmission through entire range – hold in each range for at least three (3) seconds. When complete, shift vehicle back into PARK. Remove Fill Plug.Ensure that the fuel tank is between 1/4 and 3/4 full. Start cold (below 86°F/30°C) and run the vehicle until engine coolant temperature is at least 160°F/71°C (typically requires at least one minute; up to 3 minutes). Accelerate to 40-55 MPH at 25% throttle and maintain the speed for five minutes.My transmission fluid temperature around town used to run 191°. Now it is holding at 144°. Reactions: Leveled17yeti and swathdiver. ... once i see what they find out at the chevy garage. my truck is a 2016 chevy silverado 1500lt-z71 4x4. 5.3liter v8. 6l80-transmission. ...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...On average, the 6L80 transmission can last up to 150,000 miles or more if properly maintained. However, this number can vary depending on the vehicle's driving conditions and how well it is taken care of. For more insight, you could also check out our explainer on GM's and Chevy's 4L60E transmission problems.Click the Amazon Link below to view or order part shown in this video 1. SURE COOL -- https://amzn.to/3z5GUzv2. TRANSGO DELETE -- https://amzn.to/3FP...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!!!...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.

Some 6L80 / 6L90 transmissions do not use a dipstick. Proper fluid level is achieved when fluid begins to drip from the Level Control Plug opening. Fill transmission only with synthetic fluid included with transmission purchase or Dexron VI. This transmission will require approximately 10 quarts of fluid. 1.

Hurry before it's to late!!! How to make your 6L80e,6L90e,8L90e stay cooler and last longer… We hope you all enjoy thanks for watching.👍🏼 ️🙏🏼Nov 11, 2022 ... Precision Transmission•44K views · 10:59. Go to channel · Transmission Temperature Before and After on a 6L80 Chevrolet 1500 Check This Out !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.The 6L80 denotes that the transmission is a 6-Speed, Longitudinally mounted, and for 8000 lbs. vehicle weights. It's RPO code is "MYC" and it is domestically manufactured in GM's Ypsilanti, Michigan plant. Newer to the transmission world is its use of direct clutch-to-clutch shifting and the total lack of bands.Aug 9, 2021 ... WHAT BETTER PLACE TO TEST OUT THIS 6L80 MOD THAT DEALS WITH HEAT. TODAYS HIGH TEMP OUTSIDE IN DEATH VALLEY WAS 133F DEGREES.Altitude and Temperature Compensation: Adaptive Shift Time: Neutral Idle: Reverse Lockout: Automatic Grade Braking: Additional Features: OBDII / EOBD: Integral Electro/Hydraulic Controls Module ...Pretty new to HP Tuners (and tuning in general), I recently transplanted a 2008 statesman l98 and 6l80 in to my Patrol (a 2008 ST patrol, ex 3,0)which has 35inch tyres and 4.11 diff gears. Recently we purchased a caravan that might be slightly heavier than the car should tow 2800kg unloaded, 3500 loaded. The Motor ran at 90C the whole time ...Line Pressure Tap is located in the converter housing on the right hand side as shown below. Normal line pressure should be 50-53 PSI, when in Park or Neutral and RPM below 1500, and then should rise smoothly with throttle opening when in gear and road testing. Amount of line rise will depend on engine load and vehicle speed.

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The main difference between a 6l80 and a 6l80e is that the latter has electronic control of the transmission. The 6l80 and the 6l80e are both six-speed automatic transmissions produced by general motors’ hydra-matic division. The 6l80e has electronic control, while the 6l80 is controlled by hydraulic systems.6l80 transmission overheating at idle. I have a 2018 Silverado with a 6l80 recently had a rebuild and a billet converter installed 6 months ago. When driving on highway temp stays around 150-170 but when I'm idling the temp went up to 220 . Also found small bubbles on dipstick. Share.This article will provide an overview of the 6L80E and its power handling capabilities, as well as a step-by-step guide to installing it in a variety of vehicles. The 6L80E can handle up to 685 horsepower and 600 lb-ft of torque. Install the 6L80E transmission to the engine. Secure the bellhousing to the transmission and torque the bolts to the ...3309 posts · Joined 2021. #5 · Mar 22, 2023. Well, you don't do that with a new transmission, but with one that's been worked on internally. 2009 GMC Yukon XL SLT 5.3 K5L - 2012 GMC Sierra SLT 6.2 NHT - 2013 GMC Sierra SLT 6.2 GAT. "Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that ...Circle D 6L80E Transmission Upgrades - Safe Six - Tech. Circle D Makes GM's Best-Ever Transmission Even Better With its Bulletproof 6L80E Six-Speed Upgrades. Stephen Kim Writer Jan 19, 2011.high transmission temp, and warranty. V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.comThe 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.Transmission Fluid Temperature Sensor Circuit Range/Performance: P0712: Transmission Fluid Temperature Sensor Circuit Low Input: P0713: ... Problem - Vehicles equipped with the 6L80 or 6L90 transmission may slip when Reverse is selected or have no/delayed reverse engagement, harsh shifts from 2-3 / 4-5 or slips while in fifth, and slipping ... ….

The 6L80 is designed to last around 150,000 miles, but if you don't service it regularly, it can start to degrade much sooner. Make sure you're taking it in for an oil change and tune-up at least once a year. You need to have a schedule for when you should check your transmission fluid. This should be done at least every 30,000 miles.THM200-R4. The first overdrive automatic to transfer power in the GM lineup was the 200-4R that arrived in 1981 behind A- and G-body cars as well as full-size sedans. This transmission is often mistakenly lumped in with the TH-200 three-speed automatic that GM attempted to make work in the early '80s.The input speed sensor faces the 1-2-3-4 and 3-5-R clutch housing and is triggered by splines on the housing outside diameter. The sensor receives 8.3-9.3 volts from the TCM, and produces a signal frequency based on the spline profile and rotation speed of the 1-2-3-4 clutch housing. The TCM uses this signal to determine line pressure, shift ...Let's kick off a new series! Probably looking at 7 videos (8 if you count this one) where I go over everything I know about tuning this transmission!Link to ...The manufacture of the 6L80 began in 2005 and was released in most GM vehicles in the model year of 2006. The transmission lasted until 2016, available in 6L80 vs 6L90 versions. 6L90 Transmission. GM introduced a stronger variant of the 6L80 transmission within a year, known as the 6L90 transmission, RPO code MYD.6L90 Transmission 6L80 Transmission. Related Parts. Required. Recommended. 6L80, 6L90 Remanufactured TEHCM GM6L-TEHCM-C5. ... Poor shift quality; TCC codes; Internal memory codes; Temperature sensor codes; Required. Recommended. 6L80, 6L90 Remanufactured TEHCM GM6L-TEHCM-C6. Typically fits Cadillac 2012-2015; Chevrolet 2011-2020; GMC 2011 ...After researching, I found out that the 2018 Suburban with the 6L80E has a transmission cooler thermal bypass valve from the factory. It does not allow fluid flow to the cooling lines to the transmission cooler located on top of the hvac condenser until the fluid temp reaches 190F.GM 6L80, 6L80E Low Profile Transmission Pan Please note: this product will take 3-4 weeks to deliver A GM 6L80, 6L80E Low Profile Transmission Pan looks gre. Factory 2 / 4 Melrich Road Bayswater, VIC 3153 Australia. 03 9762 8004. [email protected]. 0397628004. [email protected]. Home; ... Can be machined for a temperature sensorApr 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. 6l80 transmission temperature, 6L80E Stage 3 Transmission. Chevrolet Performance E-ROD LS3 6.2L 430HP Engine Assembly With Controller 6L80E Stage 2 Transmission. $ 6,700.00. Zero Gravity Performance Stage 3 6L80-E six-speed automatic transmission offers an torque rating of 1000 lb.-ft, up to 1000 RWH. Available on backorder., Nov 23, 2022 ... Superior Solutions 6L80 6L90 8L90 Sure Cool System Upgrade: https://www.amazon.com/dp/B0BCL9M23T?psc=1&ref=ppx_yo2ov_dt_b_product_details., Verify engine is idling at 0% throttle. Verify transmission fluid temperature (TFT) is between 86°F and 122°F. Shift transmission through entire range – hold in each range for at least three (3) seconds. When complete, shift vehicle back into PARK. Remove Fill Plug., The 6L 50 (and similar 6L 45) is a 6-speed longitudinally-mounted automatic transmission produced by General Motors.It is very similar in design to the larger GM 6L 80 and 6L 90, and is produced at GM Powertrain plants in Toledo, Ohio; Silao, Guanajuato, Mexico; and by the independent Punch Powerglide company in Strasbourg, France., Problem #5 - The High Pressure Oil Pump. As with the valve body, the 6L80-E high pressure oil pump contains multiple valves that are responsible for the proper oil flow about the transmission, and as a result, suffers from similar issues. These valves can stick, wear at the bore, springs can break and more., This Rebuild Includes. Extreme Rebuild of GM 6L80E 6 Speed Automatic (includes Torque Converter). Kit includes: - Deep Cast Transmission Pan. - Nomad Valve Body. - Performance Clutch Pack. - Modified Drum Set (Both Drums Modified) - Cryogenically Treated Internals. - Double Kiln Bronzed Torque Converter., GM 6L80, 6L80E, Deep Pan. Retail Price: $464.75. Price: $357.50 ea. SKU11025. Finish. Add machining of a 1/8 NPT hole for an aftermarket temperature sending unit: Add to cart. Add to wishlist. Email a friend., Codes stored are: P0872. P0877. P0889. P0990. Two of them indicate trans fluid pressure sensor c and d low, one is tfp sensor e high, and one is TCM power relay range/performance. So in summary: Before fluid/filter change trans was fine cold and flared when hot. After change trans was great for 50 miles then started hard downshifts and flares ..., 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!!! TSB Link:..., Better Fuel Efficiency: A well-tuned 6L80E can contribute to improved fuel efficiency. By optimizing shift points and torque converter lockup, tuning can help your vehicle operate more efficiently, potentially saving you money at the pump. Customized Performance: Transmission tuning is not a one-size-fits-all solution., Engine Coolant Temp Sensor Alternator Control (2) Upstream Oxygen Sensors Crankshaft Position Camshaft Position Fuel Injectors ... ADDITIONAL ITEMS REQUIRED: E38 ECM, T43 TCM (LOCATED IN VALVE BODY OF 6L80E/6L90E TRANSMISSION), CORVETTE OR VORTEC TRU. PSI '08 - '14 LS3 (6.2l) W/ 6l80e Standalone Harness Reviews, Are you looking for the latest Jasper Transmission price list? If so, you’ve come to the right place. Jasper Transmissions is one of the leading manufacturers of high-quality trans..., Transmission hot mode is entered when the Transmission oil temp exceeds 135 degrees celcius (thats 275 antique degree units), You can log the Hot mode pid and play with your temp sensor resistance to verify if you want, but at this temperature you can most likely smell the oil anyway. Trans oil begins to discolor around 115 to 120 degress ..., A transmission cooler is an essential component for maintaining the health and longevity of your Yukon's transmission. It helps lower the transmission fluid temperature, thus preventing transmission overheating. Upgrading or maintaining your transmission cooler keeps your transmission running smoothly during heavy use. Electric Fan, Click the Amazon Link below to view or order part shown in this video 1. SURE COOL -- https://amzn.to/3z5GUzv2. TRANSGO DELETE -- https://amzn.to/3FP..., 61119 6L80 & 6L90 Installation Guide Page 1 of 4 6L80 & 6L90 General Motors Automatic Transmission INSTALLATION GUIDE ... Verify transmission fluid temperature (TFT) is between 86°F and 122°F. 9. If fluid does not drip from opening (underfill condition), add fluid until fluid drips slightly., There is a TSB listed in the transmission section of the forum for the 6l80. You can find all the details there. But theres a part you can replace which will will lower your temps into the 140s-160s. Simple, cheap change out. There's also other options listed within that area. Your engine temp is fine. FYI you have an ecotec 5.3, not a vortec, This extra capacity heavy duty transmission oil pan fits GM 6 speed hydramatic 6L80, 6L80E transmissions. PML designed this pan for 2007 and newer Chevrolet and GM trucks and SUVs, such as these vehicles: Avalanche 1500, 2009 to 2014. Escalade, 2007 to 2014 and some 2015 and newer, V8 6.2L., After researching, I found out that the 2018 Suburban with the 6L80E has a transmission cooler thermal bypass valve from the factory. It does not allow fluid flow to the cooling lines to the …, video explains how a transmission thermostat delete works** Codemansauto DIY Tools ** 1. transgo cooler bypass https://amzn.to/3TKEU9q or2. ..., Temperature Sensor 6L80. 138 of 153. Transmission model: 6L80; Part type: Temperature Sensor; Description. A transmission fluid temperature (TFT) sensor is ..., Hurry before it's to late!!! How to make your 6L80e,6L90e,8L90e stay cooler and last longer… We hope you all enjoy thanks for watching.👍🏼 ️🙏🏼, Welcome to the Trick Shift Garage! In this video, we will walk you through how to check the transmission fluid for GM's 6-Speed 6L80 and 6L90 transmissions o..., 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 …, Reduced Torque Converter Failure Rates: The 6L80E transmission is not immune to torque converter failures, which can be a costly and inconvenient issue to address. ... Custom tuning can provide the extra power and torque needed for these tasks while ensuring that your transmission operates within safe temperature ranges. This results in more ..., This Superior Bypass Kit from Transtar (p/n A104996-5K) allows full-time cooler flow and lubrication to parts. The kit reduces the risk of overheating while under load and increases transmission fluid life. Fits 2010-2021 GM applications with 6L80-6L90 transmissions., A GM 6L80, 6L80E Deep Transmission Pan looks great but also provides a range of benefits to your vehicle. Extra fluid capacity. Most of our cast aluminium pans provide extra oil capacity above a stock pan. The more oil the better the cooling — which lowers your risk of heat related damage to the transmission., Some 6L80 / 6L90 transmissions do not use a dipstick. Proper fluid level is achieved when fluid begins to drip from the ... Verify transmission fluid temperature (TFT) is between 158°F and 212°F. 5. Perform three (3) cycles of PARK – REV. When complete, shift vehicle back into PARK., WHAT BETTER PLACE TO TEST OUT THIS 6L80 MOD THAT DEALS WITH HEAT. TODAYS HIGH TEMP OUTSIDE IN DEATH VALLEY WAS 133F DEGREES. LOWER YOUR TRANS TEMP 30 -50 DEG..., In this video I will show you have to replace a 6l80 thermostat due to the overheating problems with the 6l80. If you haven't done this or thought about doin..., WHAT BETTER PLACE TO TEST OUT THIS 6L80 MOD THAT DEALS WITH HEAT. TODAYS HIGH TEMP OUTSIDE IN DEATH VALLEY WAS 133F DEGREES. LOWER YOUR TRANS TEMP 30 -50 DEG..., Service BulletinBulletin No.: 22-NA-182 Date: August, 2023. INFORMATION. Subject: Information on 6L80 6L90 8L90 10L80 10L90 10L1000 Equipped Vehicles With A Harsh Shift, Shudder, Surge, Stall, Neutral/Flare, Transmission Overheating and/or High Transmission Fluid Temperature This bulletin replaces PIP5792E. Please discard PIP5792E., hey guys! i have a 2007 truck with a 6l80e transmission. The truck has a 1-2 hard shift. and the 2-3 is slightly wonky.. 3-4, 4-5, and 5-6 are PERFECTLY SMOOTH. The tranny has stock tune on it so does the engine. Fluid and Filter was just swapped out with pan drop about 5 months ago.