Key Takeaways. Optimal Operating Temperature: The 68RFE transmission performs best between 170°F and 200°F. Impact of Overheating: Temperatures above 200°F can lead to transmission fluid breakdown, component wear, and potential failure. Cooling Methods: Effective cooling systems and regular maintenance are key to managing operating temperatures. ...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.Nov 7, 2018 · A little story to the day my transmission in my 2018 Silverado decided to heat up to 221 degrees!!!_Thanks for watching!_Please sub and help me reach 1,000 s...the GM 6L80 transmission is prone to overheating and fluid leakage problems, which can cause gear slippage, difficulty shifting gears, and lower performance. One reason for this is that the transmission runs too hot from the factory, and the cooling system is not adequate. There are some possible solutions that you can try to lower your ...In today’s fast-paced and competitive job market, many individuals are turning to employment temp agencies for help in finding temporary work. These agencies act as a bridge betwee...All 6L80/90's are torque base shifted units. The torque signal is calculated thru the ECM. ... 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 turn will extend the life of your transmission.Suitable for all 2014-Up 6L80/90E, 2016-Up 8L80/90E : Feature 1 : Reduce average operating temperatures almost by 20%. Feature 2 : Prevent overheating while under load. Feature 3 : Using top of the line machining and measuring equipment to ensure each part is manufactured to OEM quality standards and specifications. Package Include2018 Chevrolet Silverado 1500. Asked by Visitor in Meriden, CT on May 10, 2022. On my 45 minute commute from work with the outside temperature at 70f my silverado 1500 51k Miles with 6l80 is hitting 225f transmission temperature. This was all highway driving no traffic not hauling. What could my issue be?GM 6L80: Diagnostic Trouble Codes Code Reference P0218 Trans Fluid Temp exceeds 270 degrees P0562 Voltage in system found to be low < 11v P0563 Voltage in system found to be high >18v P0601 Read only Memory found in TCM P0602 Not Programmed Trans module P0603 memory reset long term P0604 Random access Memory P0634 Over temperature TCMThe 6L80 has had a load of transmission problems, some of which directly inhibit drivability. Some of the most common issues include: Cracks in the 1-2-3-4 pistons. Slipping 2 nd and 3 rd gears. Cracked drum. Skipping 2-3 gears. Clutch Failure.To program a RiteTemp thermostat, first select Heat or Cool by pressing the mode switch. Then select the correct day to change that day’s temperature. Once the day is selected, pre...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 …Oct 1, 2019 · ATF Temp Chart. Automatic transmission fluid will provide 100,000 miles of service before oxidation occurs under normal operating temperatures of about 170°F. Above normal operating temperatures, the oxidation rate doubles (useful life of fluid is cut in half) with each 20° increase in temperature. This information clearly shows why ...C6 Tech/Performance - What is your normal operating temp for A6 transmission? - Since my ordeal with my transmission and the subsquent new trans, I've been monitoring my trans temps closely. I've ranged from 178-180 degrees (F) on open hwy at about one hour and a half to 180-185 degrees (F) in city driving within a...If one darkens your door, it will typically have an issue related to the pump and/or the torque converter. The 6L series units all share the same design and layout whether it is a 6L45,6L50, 6L80, or 6L90. A variable displacement vane-style oil pump is integral to the bellhousing. Anytime the converter decides to "take a permeant vacation ...Jan 1, 2023 · For newer models with a 6L80 or 6L90 however (2014+), the transmission cooler lines utilize a built in thermostat that remains closed and does not flow to the cooler until the fluid ... a low pressure drop system that allows for fluid to flow through only part of the cooler before getting to optimal operating temp. ...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.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.6L80 / 6L90 transmission fluid temperature sensor 6L80 / 6L90 TCM. 6L80 / 6L90 TEHCM Problems. 6L80 / 6L90 solenoid failure ... It will start operating in a much higher capacity than the other switches on the TEHCM, which can lead to increased wear and component failure. The 6L80 / 6L90 TEHCM is located inside of the transmission on the 6L80 ...Jan 3, 2019 · Its fairly common for transmission issues to come up once the trans is hot. I know that 180 is within operating temps but it's seems high for normal driving conditions this time of year even if you don't live in a very cold area. During the dead of summer mine barley gets over 170 and if I'm towing maybe 185. Something to keep in mind.Upon further inspection, we found that the TCM did have a code P0218 stored, a code for transmission over-temp. At this point, we cleared the code and went for a road test. At first, everything appeared to be operating normally. The converter clutch was applying with no slip concerns, and fluid-temperature readings were fairly normal.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 ...The transmission temperature has always ran between 190 and 210 when not towing. Sometimes it would get up to 232 when towing 9,000+ lbs at highway speeds in Florida, where it’s flat, but hot. At around 150,000 miles, I started experiencing torque converter shudder going from 4th to 5th gear.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. ...Hey guys I have a 2015 GMC Sierra 1500 5.3 with the 6l80. 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 which was 201 which ...May 5, 2021 · 6l80 overheating after motor swap. Hi I have a 12 Sierra turbo 5.3 just swapped motor and before motor swap trans would stay 150-180 now after 15 mins of driving it will go to 220 and if converter locks it will go down but if it?s unlocked it just keeps rising dosent slip or anything. 05-04-2021 #2. kevin87turbot.4 days ago · The 6L 80 (and similar 6L 90) is a six-speed automatic transmission built by General Motors at its Willow Run Transmission plant in Ypsilanti, MI. It was introduced in late 2005, and is very similar in design to the smaller 6L 45 and 6L 50, produced at GM Powertrain in Strasbourg, France .Economic collapse or no, Iceland is still expensive to visit. But planning a budget trip is possible. Iceland is cold (though not as cold as you’d expect — temps don’t often drop m...Temps weren't an issue as the trans temp remained normal and were generally around 130⁰ depending on ambient temp. 2015 Duramax, 1986 M1031, 2006 1500HD. ... I modified the thermal bypass valve on my 2016 Silverado 6L80E transmission using the Superior Transmission valve rebuild kit. My transmission fluid temperature around town used to run ...Nov 16, 2021 · 2145 posts · Joined 2012. #9 · Nov 18, 2021. I had the same issue on my 2018 suburban with the 6L80e temp reaching 210F during summer driving into town stop and go traffic. Best modification I did was the bypass thermostat delete. Now the temps don't go over 180F in stop/go traffic and cruising highways at 160F.Sep 19, 2017 · Substrate Temperature >= 50 ºC >= 2 Fail Time (Sec) Ignition Voltage >= 18 Volts Note: either fail case can set the DTC Ignition Voltage Lo >= 8.5996 Volts …398 posts · Joined 2020. #1 · Jul 24, 2020. Hope everyone on YB is doing well. I am looking at purchasing a new Chevy 2500HD with a 6.6L Gas V8 and 6L80e transmission. I have read about many owners dis-abling the transmission thermostat bypass in order to reduce transmission temps and provide full time fluid flow to the factory external trans ...I do tuning support/teach many major speed/rebuild shops and have thousands of hours loging/tuning/testing my own 2010 test Camaro. I've ran a dozen different converters from 1800K-6000K stall and four different 6L80E transmission mods. I can also remote tune the engine whether FI or NA.PATREON: https://www.patreon.com/CurmudgeonTransmissionSupplier Links:Superior: https://superiortransmission.com/Transtar: https://www.transtar1.com/WIT: htt...reached or 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)Support The Channel 👇🏼👇🏼http://aaroncates.co_____This video was posted on 4/14/21 currently at 11,46...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.If one darkens your door, it will typically have an issue related to the pump and/or the torque converter. The 6L series units all share the same design and layout whether it is a 6L45,6L50, 6L80, or 6L90. A variable displacement vane-style oil pump is integral to the bellhousing. Anytime the converter decides to "take a permeant vacation ...This may lead to an under-fill condition. Start the engine and move the shift lever through each gear range. Pause for at least 3 seconds in each gear range. With the engine still running, remove the DT 47784 (1), J 45096-30 (2), and J 45096 (3) and then check the fluid level. Refer to Transmission Fluid Check .operating temp. My buddy has a 2007 Buick lacrosse with the 3800. Temp gauge on the dash is jumping around a lot so we hooked it up to a scanner and drove around. Its staying at 217 while driving and up to 235 when sitting with an outside air temp of 84*. Fans are working and there is a new waterpump and new 195* tstat in the car.The Raybestos Powertrain 6L80E Stage-1 Performance Transmission Super Rebuild Kit contains upgraded friction clutch plates, premium steels, and more performance parts to deliver the strength & durability your hard working transmission needs. ... while being able to withstand higher temperatures associated with towing heavy loads. Raybestos ...The General Motors 6L80-E & 6L90-E transmissions are among the most diverse and capable transmissions of their time; ... My 2012 Chevrolet 2500hd stops pulling once it gets to operating temperature and I can shut the switch off and back on and it will pull again for about a minute and quit again. Todd Syme on March 03, 2023.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.Most common failure I have seen with the 6L80 transmission has been pump failure, directly related to high temperature operation. I suggest using this product to lower your transmission temperature and extend the life of your transmission. Note; V6 models have a transmission cooler located in the radiator, ...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 TransmissionsGM 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 rapidlyAccording to one mechanic, the 2007 Silverado’s transmission cannot exceed 300 degrees F. The 2011 models and maybe 10 and 12 as well, should not go above 270 degrees F and definitely not above 285 degrees F. That was taken from a direct GM quote. Some dealers put the mark at 212 degrees F to be on the very safe side of things.Sep 19, 2017 · Substrate Temperature >= 50 ºC >= 2 Fail Time (Sec) Ignition Voltage >= 18 Volts Note: either fail case can set the DTC Ignition Voltage Lo >= 8.5996 Volts Ignition Voltage Hi <= 31.999 Volts Substrate Temp Lo >= 0 ºC Substrate Temp Hi <= 170 ºC Substrate Temp Between Temp Range for Time >= 0.25 Sec 11 OBDG07 TRANS …Nov 16, 2021 · 2145 posts · Joined 2012. #9 · Nov 18, 2021. I had the same issue on my 2018 suburban with the 6L80e temp reaching 210F during summer driving into town stop and go traffic. Best modification I did was the bypass thermostat delete. Now the temps don't go over 180F in stop/go traffic and cruising highways at 160F.Here is the gear ratio of the 6L80E automatic transmission: First gear — 4.027. Second gear — 2.364. Third gear — 1.532. Fourth gear — 1.152. Fifth gear — 0.852. Sixth gear — 0.0667. Reverse — 3.064. The 6L80E transmission's RPO code is 'MYC' and is manufactured domestically in GM's Michigan plant.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.It takes a little little longer to reach operating temp, but that's it. So drive easy for the first few miles or until you can get above 100f or so. 2018 1500 LT2 Z71 CCSB 5.3, Diablew tuned, Airaid MIT, Carven progressive catback, Lasfit LED D5S, DD SS3 MAX fogs, Morimoto LED's for the rest, heated wheel retrofit, scamsoil in all the reservoirs.when the operating range of the trans-mission fluid temperature (TFT) is be-tween 86-122°F(30-50°C). If the trans-mission fluid is outside this range the level of the transmission fluid cannot be accurately determined resulting in either an over filled or under filled trans-mission. A. Observe the TFT using the driver information center (DIC)May 10, 2022 · 2018 Chevrolet Silverado 1500. Asked by Visitor in Meriden, CT on May 10, 2022. On my 45 minute commute from work with the outside temperature at 70f my silverado 1500 51k Miles with 6l80 is hitting 225f transmission temperature. This was all highway driving no traffic not hauling. What could my issue be?Substrate Temperature >= 50 ºC >= 2 Fail Time (Sec) Ignition Voltage >= 18 Volts Note: either fail case can set the DTC Ignition Voltage Lo >= 8.5996 Volts Ignition Voltage Hi <= 31.999 Volts Substrate Temp Lo >= 0 ºC Substrate Temp Hi <= 170 ºC Substrate Temp Between Temp Range for Time >= 0.25 Sec 11 OBDG07 TRANS Diagnostics 6L80/6L90 ...The GM 6L80 and 6L90 TEHCM houses the transmission control module (TCM), or computer. The eight solenoids are connected to the TCM via a lead frame, all of which are over-molded in the plastic housing and not accessible or serviceable separately. ... Temperature sensor codes; Required. Recommended. 6L80 Remanufactured Valve Body GM6L80L '10 ...Mine runs at 175-180 ,why because I put a 160 thermostat with my fans tuned to kick on at 180 and off at 170. On a moderate temperature day, a stock engine with the stock 180° thermostat will run about 190°-200° while cruising. When you stop, so does air flow across the radiator (if a/c is not on).- GM states that the normal operating temperatures are between 180 and 200 degrees. But what we don't know is if that includes in my 'Severe Duty'. I suspect not. - In general running at 70 MPH in 100 degree heat would generate transmission temperatures between 200 and 210. The harder I drove it, the higher the temperature …2 days ago · 6l80 Transmission Cooler Flow Direction. The transmission fluid low of the 6l80 goes as follows: Bottom line leaving the transmission to lower radiator port. Lower radiator to upper radiator port out to external transmission cooler. External transmission cooler to upper transmission cooler line port. If you do not have an external transmission ...19 sierra 1500 limited 6l80 with original TBV was about 180-196F operating temp. New GM tbv (stamped with a 70) topping at 171F max so far. Normally at 145-147 though, even after an hour of driving unloaded. Also got new fluid and filter along with new TBV, and noticed my downshift from 3-2 is no longer clunking.The synthetic fluid will not breakdown over 250F but the rubber valve seals and apply piston seals get very hard and shrink due to high temps and they fail to seal and begin leaking fluid under pressure causing shifting issues. I shoot for max of 190F on trans fluid temp esp when towing.Jul 21, 2008 · #1. On my `16 Chevy Suburban with the 6 speed and 5.3 L, I just did the change to the lower temp. thermostat as per TSB 21-NA-199 which lowers the temp 26 …6L80/90 Don't see it too often in later model units but the 3-5-Reverse clutch drum does like to leak at the base welds causing flares, slips and other related drivability symptoms. ... Also watch the trans temp gauge. - Drop the pan and look at the fluid as well as bottom of the pan. Also pull the filter and check to see if it's clogged.CDT Level 2 6L80 bench rebuild includes labor & all parts itemized. Ready to ship transmission back in 3-5 business days! 5-Star Houston transmission shop. ... install a stacked plate auxiliary transmission cooler (not a tube & fin style cooler) rated for 25,000 GVW. The ideal operating temperature for this transmission is 180°or less. These ...FLUID CHECK PROCEDURE. 6L80 / 6L90 transmissions do not typically use a dipstick. Proper fluid level is achieved when fluid begins to drip from the Level Control Plug opening. Verify vehicle is on level ground when performing fluid level check procedure. Verify drive wheels are blocked and parking brake is applied.Apr 10, 2024 · 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 ...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.. Jun 20, 2013 · 395 posts &Mar 3, 2024 · Just replaced my 6L80 transmission in a The 6L80 has had a load of transmission problems, some of which directly inhibit drivability. Some of the most common issues include: Cracks in the 1-2-3-4 pistons. Slipping 2 nd and 3 rd gears. Cracked drum. Skipping 2-3 gears. Clutch Failure.PATREON: https://www.patreon.com/CurmudgeonTransmissionSupplier Links:Superior: https://superiortransmission.com/Transtar: https://www.transtar1.com/WIT: htt... Exceptional torque rating. Developed with upgraded in 6l80e Transmission Fluid Temperature. The 6l80 normal operating temperature is in the 180-200 range when fully warmed up, and this based on the thermostat that prevents transmission fluid from running through the whole transmission cooling system in an effort to improve gas mileage. Our high-performance transmissions —including GM 6L80 (level...
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