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  1. P

    2016 transfer case oil change

    Soon to change it. that said what's the spec and capacity? thanks
  2. P

    TC shudder just started...

    UPDATE: did flush and filter with current spec fluid. Lines were flushed along with 12+ qts and used Ford friction modifier which shop felt better choice. 2500 miles now and all OK! Question for NickTransmissions when in trailer mode does TCC get locked up and if so what gears? thanks
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    TC shudder just started...

    If mine ever needs the TC, it's getting full rebuild + update. not paying to take out 2 times!
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    TC shudder just started...

    Not the best photo due to shop lights, but doesn't think it's self-destructing. Doing new filter, flush, newest fluid, friction modifier, then drive.
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    TC shudder just started...

    Dealer checked it, but going to have local trans shop pull pan and check. Both say there is newer fluid. shop road-tested vehicle. I'll update. Trans shop Dealer also said fluid used in TSB only lasted for about 4 years, hence the newer version of fluid.
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    TC shudder just started...

    Flud was changed when purchased at 50K miles per TSB now at 95K. happens even in trailer tow mode. Does GM assist in repair? does additional damage occur if driven? Will another fluid change help? Please educate me? BTW I have 2016 Yukon 6.2 and 8speed. I think TC just started to shudder, and...
  7. P

    2016 Yukon XL Denali 6.2l battery question

    Walmart has the H7-AGM with 4yr replacement for $180 which is about $80 less than big box auto parts stores. and they only have 3yr replacement!
  8. P

    2016 Yukon XL Denali 6.2l battery question

    Here's what I found group 94R and H7 for AGM. That said if mine is 94R it tests good, but with AGM setting shows replace. I did both set to 800CCA. Standing voltage is 12.7v
  9. P

    2016 Yukon XL Denali 6.2l battery question

    I'm sure it's a good battery, but not $350
  10. P

    2016 Yukon XL Denali 6.2l battery question

    Anyone know the AC delco OEM battery group, CCA, and AGM or not? I'am trying to avoid almost pulling it out to get info... so I can properly test it? thanks
  11. P

    Towing up Mountain Pass - 210F Engine and 199F Transmission

    Only way to know true temperature id with look at scanner data. dash gauges can be misleading.
  12. P

    Harsh shifting and shift flaring (dealer wants to replace valve body) 2016 Escalade 113k miles

    choices: 1- trust the dealer 2- 2nd opinion at another dealer 3- another opinion at "trans" shop 4- live with it I like watching this guy especially on TikTok https://www.youtube.com/channel/UCTqPiwyy6v8WWb9YAIcLfDQ https://www.tiktok.com/@performancetransmission?lang=en
  13. P

    '17 LS struggling on mountain roads

    If you google P2227 and P2228 are related to the barometric pressure sensor. That said maybe best to have a knowledgeable shop monitor data from the barometric pressure sensor. The sensor can adjust air/fuel ratio as needed. Just don't start throwing parts at it which may cost more than have a...
  14. P

    I think the dealership destroyed my engine

    did the oil light come on or show other info like nothing on oil pressure gauge.
  15. P

    Rear window defogger re glue.

    I've soldered them over the years on my various vehicles.
  16. P

    2022 Lifter Issue? - w/video, out of state issue (edit: thrust bearing broke)

    Did GM dealer find what the issue is? does that engine still use a vacuum pump?. sounds external?
  17. P

    Trans shudder SB for 2017

    Purchased our 2016 Denali Yukon XL in 2018 w/ 50K miles and at that time trans issue was addressed before purchase, now has 86K. My question anyone have video or can explain what the shudder is? I do have snap-on solus scanner and how could I use it to check for issue/record/? I'm retired and...
  18. P

    Nitrogen filled tires

    It's a $$$$ grab, after all air is 80% nitrogen!
  19. P

    Brake light out

    GM would only cover for 72K miles or 72months... so I had to repair. All ok now
  20. P

    Brake light out

    Yes removed the assy and it's LED. I'll have to check with dealer, but have any links to TSB, TSB number, or DIY repair procedure? thanks again
  21. P

    Brake light out

    2016 with right brake light out. is it bulb or LED and if LED what issues and fixes are there? thanks
  22. P

    6.2 vs 5.3 and premium gas

    2016 XL and recently did 2 trips 1- 125 mile each way towing 6500lb boat&trailer on same road each way. Premium(93) fuel trip shows 13.9MPG and return trip with MID(89) reported 14.2mpg. NO difference noticed even on hills which peaked at 2400 elevation. 2- 500 mile round trip(not towing) going...
  23. P

    Possible mag-ride issues

    dealer missed the rear were also bad when they checked the front. So... after parts delay also got rear replaced along with air compressor for them. Tech stated compressor wasn't running. All done now and rides great. extended warranty policy more than paid for itself w/only $200 deductible
  24. P

    Yukon XL running boards don't retract most of the time

    2016, right side board has recently would start to retract then go out again. I have lubed all the pivot points as done in the past but not helping now. Begining to think I need to take motor apart and lube internal gears? Comments please and thanks
  25. P

    Possible mag-ride issues

    GMC dealer which they stated front shocks is the issue, I thought it was the rears. Ordered and wait to next visit. That said, how do I check the rears? If I depressurize the rears( with Snap-On Solus) should I see them drop without doing damage to system? Would like GM tech to chime in? thanks

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