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2015 6L80 P0741. 2015 GMC 6L80. 140k-ish miles, 5.3. Last week: Driving home, noticed my RPM's were higher than they should be at 45 mph, like 2200 or so. I always run in M, so I can change the gears if I want to. But it was in 6th. Dropped back to 5, no change.3281 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 ...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.Developed with upgraded internal components, Chevrolet Performance’s SuperMatic 6L80-E 6-speed automatic transmission offers an exceptional torque rating …May 31, 2023 · 802 posts · Joined 2023. #1 · May 31, 2023 (Edited) Hi All, I'm brand new here but active on other GM forums where the 6L transmissions are actively being discussed so figured I'd start a similar all-encompassing transmission thread with videos, links and other information as it relates to the 6L80/90 transmissions.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.COOLER FLOW BYPASS DELETE KIT. Fits 2014-on 6L80, 6L90, 2016-on 8L90, 2017-19 Allison. An easy, no-hassle cost-effective drop-in Cooler Flow Bypass Delete Kit for General Motors 6L80, 6L90, 8L90 and Allison transmissions. Corrects/Prevents/Reduces: Provides all-time cooler flow regardless of temperature. …Nov 3, 2021 · Hey all, Just wanted to share to see if anyone has had a similar issue with their 15-17 GT. I have the 6R80 Auto trans and for most of the time I've had the car, it's been an incredible transmission. About two weeks ago I took my car on a 3200 mile road trip, a lot of which was highway miles along I-40 East/West. What I noticed along the trip is that …Yeah the normal running temp isn't really my biggest issue it's towing up steep grades in the summer that had me a little concerned. Right now I see running temps without towing avg. at 145 then it'll drop considerably when no demand is being put on the transmission (which is probably because of the external Mishimoto cooler).On the night of my 20th birthday, I started a new summer job. I worked the third shift five nights a week helping to remodel a superstore. That summer, I learned a lot about the wa...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 ...Let's talk about locking and unlocking the TCC (torque converter clutch).No files for this video, but here is the link in case you missed it previously.Googl...A better upgrade is replacing the factory 190°F thermal bypass valve, TBV, with the new available lower temp 158°F TBV instead of modifying the 190°F thermostat. TBV Part Number 86774933, stamped with "70". 2008 Sprinter 2500 170 - camper van. 2001 Suburban LT 2WD, 5.3, V8 311,000 miles, leaks oil now at rear main seal.Reaction Points. 566. Location. Fresno California. maxspongebob said: Ford seems to think that 219 degrees is a mid range for transmission temperature. I thought anything over 200 was getting into the HOT range. Yes, I tweaked the gauge to show the numeric temp using Forscan.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 ...Superior's STL010 6L80E 6L90E SURE-COOL Cooler System is a recommended upgraded during any rebuild or as preventative maintenance to any HD GM truck or motorhome. Easy to install, save yourself or your customer thousands of dollars down the line. ... 5R110W Transmission Clutch Pack Clearances & Gear Ratios ; 5R110W Transmission Torque ...Welcome back! We are finally covering the 6L80 Thermal Bypass Mods. There are 4 unique mods that we will be covering in this video including the updated GM T...

Support the Channel and Buy some MERCH! https://www.jorgesspeedshop.com2019 Camaro ZL1 MOD LIST:Pray TunedRotofab Big Gulp2" Speed Engineering HeadersE40Best...A better upgrade is replacing the factory 190°F thermal bypass valve, TBV, with the new available lower temp 158°F TBV instead of modifying the 190°F thermostat. TBV Part Number 86774933, stamped with “70”. 2008 Sprinter 2500 170 - camper van. 2001 Suburban LT 2WD, 5.3, V8 311,000 miles, leaks oil now at rear main seal.Built-in thermostat reduces wear, improves horsepower, and eliminates other issues caused by overcooling of the transmission fluid. 100% bolt-on for 6L, 8L, and 10L series General Motors automatic transmissions. Two thermostat temperatures to choose from: 140ºF and 160ºF. -6AN female O-ring boss ports for connection flexibility; choose any line size and type you want. Lifetime Warranty. Made ...Found on the internet Technical Service Information #21-NA-199 that talks about this new valve that will open at 158 degrees, instead of 194 degrees for the stock valve. This applies to vehicles from 2014-2020. I have a 2014 GMC Sierra 1500, Crew Cab, 4WD, 5.3L. When I am pulling an RV trailer, my transmission temperature is usually 194 degrees.

Sonnax Transmission parts for GM 6L80 applications ... Temperature sensor codes; Learn More. Featured. Remanufactured TEHCM GM6L-TEHCM-C6. Typically fits Cadillac 2012-2015; Chevrolet 2011-2020; GMC 2011-2020; Isuzu 2012-2016 . Helps cure: Solenoid electrical circuit faults;Our high-performance transmissions —including GM 6L80 (level 1 and 2) and GL90 — are built to the horsepower, torque, and rear gear ratio specs of the engine that it will be matched to. Also featuring a torque converter, the transmissions come with a complete master overhaul kit with new gaskets, seals, rings, and pistons.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. GM 6L80 and 6L90 transmissions are a hugely popular un. Possible cause: 6L80E 6L80 Transmission. $ 3,295.00 $ 2,495.00. The 6L80E transmission is now for sale .