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  1. NickTransmissions

    Possible TCC Failure

    Drop the pan before you spend any money on fluid. If there's a whole bunch of fine, sand-like metal debris, burnt clutch material, etc put the pan back on with a few bolts and yank it out for overhaul. Otherwise, here is the 6L80 fill procedure
  2. NickTransmissions

    6.0 Swap Time!

    I am coming to the conclusion that, when considering the 4L60E, it's the luck of the draw in terms of how long they last...The primary failure factors are: 1. Casting quality of the valve body 2, Casting quality of the forward drum 3. Metal used in the sun shell The valve bodies exhibit wear...
  3. NickTransmissions

    6.0 Swap Time!

    Ok; odd that it has no warranty as most of their major powetrain components come with one. I also have several 4L60E Youtube videos including a step by step rebuild series along with numerous high performance tips/pointers videos so another resource for you if you need it. Good luck with the...
  4. NickTransmissions

    6.0 Swap Time!

    Sorry to hear, man...Sucks. @BlackBearPerf 's tune had nothing to do with it, PCM/TCM programming doesn't cause a mechanical melt-down as described. If your pan looks like the one below (Chrysler A904 pictured) with sand dunes of metal matter, it was the torque converter... The transmission is...
  5. NickTransmissions

    2016 TAHOE PPV new trans and tune

    What parts are upgraded, per each transmission (rebuilt, Trans America) and what are the specific upgrades?
  6. NickTransmissions

    Transmission not going into gear

    Thanks, man...Let me know if you have any more questions.
  7. NickTransmissions

    Transmission not going into gear

    Gotcha...Check/research shops in your area. Ask them exactly what parts they replace, what they check for defects (valve body, pump, forward drum, along with warranty options. Compare that to my list in that 4L60E info thread for reference... I wouldn't go with any one offering less than a...
  8. NickTransmissions

    Transmission not going into gear

    You're welcome...Are you going to rebuild it yourself? If so, check out my 4L60E information thread (link is in my signature line) where I have tons of info, video instruction, links to addl resources and guidance. I estimate that you'll have to shell out roughly the same amount of money in...
  9. NickTransmissions

    Transmission not going into gear

    Did you lose all forward movement when in "Drive" and had to put it in manual low, upshift to manual 2nd to limp it home? If so, It's def not minor unless you can yank the unit and rebuild it yourself. If so, then you'll save quite a bit of money, some of which can be spent on choice upgrades...
  10. NickTransmissions

    GM 6L80 Transmission Information Thread

    You're welcome. If you get it diagnosed and swapped out quickly you might get lucky but it's not something count on or do. Id overhaul it and install an upgraded converter. Once the converter starts shuddering/slipping, especially on a unit with 90k, it's usually due to wear elsehwere or the...
  11. NickTransmissions

    GM 6L80 Transmission Information Thread

    Converter is breaking bad on you. Plug in a bidirectional scan tool and monitor trans and converter data, particularly shift speeds and tcc duty cycle in combo with tcc slip speed...tcc slip > 10 rpm or so at high duty cycle (40+ mph, especially) indicates slipping clutch or stator...Either...
  12. NickTransmissions

    2016 Tahoe Trans failure

    What exactly are they doing to the transmission? What parts are replaced, what hydraulic correction kits used? What will be done with the pump and 3-5-R drum? Upgradsd torque converter (upgraded = .070 thick borg warner high energy TCC vs woven style .022 POS)? For that quote to have any...
  13. NickTransmissions

    2016 TAHOE PPV new trans and tune

    In the off-chance you read this, you'll need to have the THECM (the transmission's control module) programmed per the operating software version that was loaded at the factory for your vehicle. That can be cross-referenced by way of the last 8 digits of the VIN and part number on the TEHCM...
  14. NickTransmissions

    2022 Tahoe Premier – New Transmission Needed at 8100 miles (under warranty)

    Why would a rebuilt 10L unit, assuming it was properly overhauled, be a shot in the dark? I'm likely going to start rebuilding these transmissions within the next year so am interested to hear your reasons for saying that.
  15. NickTransmissions

    2016 Tahoe Trans failure

    The casualty is usually the front pump, tends to mangle the working surfaces and sometimes breaks the pump rotor. no movement is the result, if the condition didn't already happen due to the converter's stator failing.
  16. NickTransmissions

    GM 6L80 Transmission Information Thread

    Yea, unfortunately you won't get anywhere near the full picture of what's happening and why with just a code grab. P0700 is a generic TCM code that's informing something is wrong...You need a scan tool with live data and two-way comms capability to properly trouble shoot...I'd start watching YRT...
  17. NickTransmissions

    GM 6L80 Transmission Information Thread

    I'm familiar with Snap-On but Autel, Bosch and SPX are also popular. There's various levels of sophistication but bi-directional communication, code reading (including ABS, Chassis codes) and adaptation resets is usually sufficient for most DYIers. Some have wifi connectivity - those are nice to...
  18. NickTransmissions

    Transmission interchagability

    @stevesbermudablue or anyone else reading... While I didn't mention it initially (skipped my mind when arguing with that other poster), you can also tell whether or not a given 4L60E has a turbine speed sensor by looking at the color of the transmission's wiring harness case connector. - The...
  19. NickTransmissions

    Transmission interchagability

    Yep, the 4L60E landscape can be a minefield to navigate when it comes to interchangeability, both in part and as an assembled unit. The Gen3 sbc 4L60Es in the full size trucks/suvs are all largely the same other than the TSS through 2008. In 2009, all 4L60Es underwent significant C3 and...
  20. NickTransmissions

    2007 Yukon. Lost 1st and reverse gears in transmission. Replacement options?

    It could be or it may have been something else not associated with the transmission or t-case entirely. Generally, once the transmission starts grinding, it's not long before it stops working correctly all togther. Obviously, those things dont fix themselves (as much as we wish they did)....If...
  21. NickTransmissions

    Transmission interchagability

    Yep, exactly. I've rebuilt countless 'good used' / transplant 4L60Es that went belly up within 6 months after being installed...I know a rebuild can be out of reach for a variety of reasons but if folks can either save or take on the work themselves, they should absolutely do it. Not sure if...
  22. NickTransmissions

    Transmission interchagability

    He can contact any GM Dealership parts department and give the last 8 of the VIN to confirm/deny his transmission is equipped with a TSS then purchase a TSS-equipped 4L60E. Don't make statements like, "I think most of that is incorrect" then realize you stepped in it. As a certified master...
  23. NickTransmissions

    Transmission interchagability

    So...How many 2000-2013 4L60Es have you rebuilt over the years?? You left this question completely unanswered. Your Saab is in the minority and has a completely different engine belonging to a completely different engine family! Those units are completely different where it counts (as I...
  24. NickTransmissions

    Transmission interchagability

    Pretty Sure??? How many 2000-2013 4L60Es have you built? I've built hundreds over the past 15 years... He has a 2005, per his OP...If his has no TSS, any 2001-2008 V8 300mm input design 4L60E will plug and play. If it does, he's limited to those units with the TSS up to 2009. He can reuse his...
  25. NickTransmissions

    GM 6L80 Transmission Information Thread

    It can be a problem with the shifter itself not communicating to the PCM/TEHCM once you place it into manual mode...The only way to know for sure is to put a scan tool with live data capabilities...Plug the scan tool in, bring up 'Transmission' data then fire the engine up...Note the range being...

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