transmission

  1. M

    2002 Escalade transmission swap to a 2004 HELP!

    Good afternoon, I recently had the transmission in my 2002 6.0L Escalade go out. I found a 4L65 tranny from a 2004 Escalade that I've since received conflicting information on, on whether or not it would work with my 2002 as a direct swap plus programming. If I were to order a...
  2. Boiler89

    [SOLVED] Moaning noise

    Hi there, New to the 5.3 ecotec. I recently bought a 2018 Yukon XL SLE. I didn’t really notice it when test driving it, but have started to notice a moaning sound on startup and acceleration. Kinda sounds like a power steering pump, but I know it’s not since these things are electric power...
  3. G

    New to us 2002 Yukon XL Denali, EVAP Code and Hard Shifting.

    Hey everyone, So I just recently purchased a fairly clean 2002 Yukon XL Denali with 200,000 miles on the ODO and, to no one's surprise, we got a check engine light a week later. I'm going to troubleshoot the issues myself but I wanted to see if I could get some pointers from those who are more...
  4. M

    2014 Transmission problems

    Hey everyone,it's my first post here, need some advice with my 2014 Tahoe 5.3L 4x4. I’m running into a few issues: After coming to a stop, when I press the gas to start driving again, the truck moves forward with a loud, aggressive thump — feels like something’s engaging hard or late. At red...
  5. L

    Need Help/Advice on Dealership Repair Work

    I have a 2015 Tahoe LT. So far I've had 4 cylinders, the transmission, and the spark plugs/wiring replaced at a cost of over $10,000. Now the dealership is telling me the catalytic converter needs to be replaced. I feel like the dealership is not being upfront with me , is not catching things it...
  6. F

    2007 Yukon Transmission R+R - Rough Labor Time?

    Hi, long time lurker and first time poster. This coming weekend I'm planning on doing a transmission swap in a 2007 GMC Yukon 4WD, and I was wondering roughly how much the labor time would be? I'm doing this job for a good family friend and I am trying to figure out a fair amount to ask for...
  7. P

    rough shift 1st to 2nd: fast service learn

    i've recently done a dod delete, and i also did a transmission fluid flush and filter change. the vehicle had the battery disconnected for long periods of time, and i experienced battery problems to the point i had to replace the battery a few days ago. i am experiencing missed/rough shifts from...
  8. B

    What vehicles have the same transmission

    I have a 2007 GMC Yukon 5.3 liter, 4wd, 4L60e transmission that the clutches are welded together. Cooked. What other vehicles and years have the same transmission as my Yukon @NickTransmissions ?
  9. J

    Which Gear for SC "Foothills"?

    Howdy! I've just moved from very flat, Central Florida — to hilly, Greenville area, South Carolina. I had the automatic transmission rebuilt (twice) and upgraded the transmission radiator/cooler. :) I remember my Florida, transmission mechanic saying something about keeping the Tahoe in 3rd...
  10. H

    Loss of power- does not die completely but loses all gears - SOLVED

    I have a 2010 Tahoe 5.3 4WD I ran it out of gas the other day (I know I shouldn’t push it as far as I did) Friend brought me a gas can, put enough in it to get me to the gas station. Was driving it home (45 minute drive) and it did fine until about 5 minutes from the house. Then it started...
  11. C

    2018 Premier w/transmission issues.

    I bought this 2018 Tahoe Premier in August of this year, w/94k on the odometer. The Chevy dealer gives a lifetime warranty on engine and transmission on all vehicles under 100k. Carfax showed that the previous owner had the transmission replaced in June of this year. So I figured with the new...
  12. Scrappycrow

    Transmission Cooling Line Retaining Clips -- Which Brands & Part Numbers Work?

    Y'all, After a long day of wrenching, one of the last items to do was reconnect the transmission cooling lines to the radiator, but one of the retaining clips went "BING!" and shot off somewhere in the engine compartment. 45 minutes of looking in every nook and cranny, doing lots of...
  13. C

    2017 Yukon Denali Shudder Problem

    Hey there, I picked up a 2017 Yukon Denali with 60k miles on it from Carmax two days ago. I didn’t notice it during the test drive, but I’m experiencing a shudder that feels like driving over rumble strips. I went back to Carmax yesterday morning, and they knew exactly what I was talking...
  14. L

    Major upgrades GMT800, 06ish XL 2500

    Newbie here. Gonna buy 2003--2006 Yukon XL, SLT W/ 8.1. Once rig here, one of the big "to do" on bucket list is upgrade tyranny to best there is. Forgive my Naiveté as relates to engine/tranny/rear end. But would it be possible to upgrade from 4 speed to like a 5-6 speed, ie 6L90 ? If I...
  15. 2

    Please help

    My wife was driving my 2001 Tahoe to pick up her grandpa, she picked him up then she said it was like it went into neutral… No grinding noises or anything. I got it towed home and found out It won’t even go in reverse. The transmission has good fluid… I don’t know what could have happened can...
  16. J

    2021 GMC Yukon Denali Oil Burn

    I've got a 2021 GMC Yukon Denali with 85,000 miles and just had a notification pop up on dash about low oil. Oil Life Gauge has me at 38% life remainging still. Checked the dip-stick and was bone dry. Any thoughts on why this could be burning almost 40% oil? Put 2 quarts in it to get me by until...
  17. T

    14 LTZ Shutter/shake/ vibration under light throttle

    Hello all, first post here, I’ve been here awhile tho! I have a 14 Tahoe LTZ with 101k, I just had the 100k service done, spark plugs/ wires, transfer case and differential, as well as torque converter replaced under warranty due to the shutter/ shake, two different shops confirmed this...
  18. MrShmack

    Brakes and possibly transmission issue?

    Seeking some advice on a few issues with my “new to me” 2003 Tahoe. There seems to be an issue with the brakes where when I’m driving the brakes like to get hard and pulsate almost but will eventually get soft and compress all the way down. I have done a little research on the forums already and...
  19. S

    2022 Tahoe RST Reduced Acceleration Drive with Care - Valve Body?

    Hi All - Last week driving my 22 Tahoe RST with 30,615 miles at about 30 mph, my engine light started flashing and then went solid, and the message "Reduced Acceleration Drive with Care" message came on. I had about 7 miles left to get home and couldn't go higher than maybe 25mph, with the...
  20. E

    2016 Yukon Denali weird stuff, sketchy gm dealer

    Hello, please help. lol. I am new to the forum and I own a 2016 Yukon Denali with the 6.2 engine. 124k miles. My issues started out relatively small it seemed, I had the unfortunately typical hard shifting and delayed shifting going on (mostly into second gear). Engine light comes on. I take it...
  21. Y

    2014 Tahoe transmission

    Hi all, I have Tahoe 2014 with 6L80 Base on this website transend.us, I don’t know how I can verify it. The transmission is slipping and I have been told by transmission shop that it’s the torque convertor. I drove it home and I got the code P0797-00, should I try to replace the convertor if I...
  22. P

    2020 tahoe 6.2L 4x4: fluid changes and drivetrain components

    i've recently taken over maintaining our family 2020 tahoe 6.2L 4x4 premier with 72k miles, and i am preparing to repair a leaking front differential pinion gear seal and change the fluids on the transmission, differentials and transfer case. however, i am having trouble nailing down exactly...
  23. K

    Buying 06 Z71 in limp mode because of leak from transmission to transfer case?

    I am considering buying this 06' with the issue above. He tells me that it is in limp mode and will only drive to 2nd/3rd gear and he had to flutter the gas and coast. He tells me that Firestone said it is a leak from the transmission to transfer case, and it needs to be sealed. he said adding...
  24. U

    2016 Burb - New Built 6L80 and Circle D Converter going In Soon

    This Wednesday. Installing my rebuilt 6L80 and Circle D converter 1800-2000 stall with Penzoil Platinum full synthetic LV ATF. The builder said my 4-5-6 clutch was smoked and there was slight scoring on the pump. He rebuilt the trans, gave me a new pump and installed some Sonnax upgrades that...
  25. U

    Circle D TC 1800-2000 or 2200-2400 Stall ?

    2016 Chevy Suburban -Diablew Tune Only -Superior Transmission cooler bypass -112k miles -Tow a boat in the summer I need to replace my TC and most likely Transmission and I wanted to ask and see what everyone thought about a higher Stall speed? Circled D on the phone recommended the "GM 300MM...

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