Recent content by Smokin Denali

  1. S

    Coolant overheating 2019 Tahoe - SOLVED

    wild guess.....( I aint no Mechanic but did this once) ......thermostat in backwards??
  2. S

    L87 Glitter party after oil change

    Sorry!....pix for above oil post. Smoking Denali
  3. S

    2018 GMC Yukon Denali question on how to clean my fuel injectors and carburetor

    I used this exact additive. Wow. I felt difference on a 14K, bought new Jeep V-6. Try it!
  4. S

    L87 Glitter party after oil change

    wow! lots of good advice here! Here's what I've learned....the hard way. Pennzoil Ultra EXTENDED oil ( 20K miles!!) made from clean natural gas to almost meet Class 4 Syntec!! It only means that the Additives that clean the engine and fight fuel contamination ( all engines have some!)...
  5. S

    Extended Warranty on 2026 Tahoe LS 4WD 5.3L

    I wish you only the best w your beautiful Truck.........BUT Ive been there! After 2 Dangerous Breakdowns on busy Freeways (44K and 65K) I dumped it! what good is a $3500 SWarranty of ANY KIND when u break down at 2am in a nasty City, with your family ....AFTER barely surviviing a deadly...
  6. S

    Died at 70mph on I-75

    happened to me 5 years ago! 2015 Yukon Denali 6.2L w 45k miles. Common Eng valve/ lifter failure! Failed while crossing major Thruway. I barely escaped alive. GM fixed free under factory Warranty. Ran like new ( that was the Death blow!) Happened again around 75k! Thankfully, I bought a $3K...
  7. S

    End of the road for the ol girl??

    Im so bitter over my Yukons motor bkee 2X ( 40k and 59K ....8-4cyl Typical failures) that I moved to another brand. Almost killed on Highway once is enough for me. But yours Doesn't have the 8-4cyl engine in that year.....so if ya love the truck, and guess at engine work, new brake lines and...
  8. S

    45K Service - this seems excessive

    Run!!! Rip off!! You're due for an engine failure !!! Trade for an Electric or 4 cyl Turbo, GM. So many did fail..... sorry. I loved my Yukon Denali......
  9. S

    6.2 recall question?

    Sell that Truck if you travel more than 20 miles from home or your wife drives w kids! The engine WILL FAIL!! 5K-50K miles. Mine almost killed me at 40K miles....first time! On super highway ! Total, instant engine failure...no power steering or brakes. GM really blew it with their 8-4, V-8...
  10. S

    Laminated vs Tempered Door Glass (Tahoe,Sub,Yukon)

    I had laminated on my 2015 Denali, its same as any MANDATED front windshields. They're very hard to break thru....like a windshield. Yes maybe 20% quieter I found than bade model Yukon. BEWARE! If in an accident ( submersion, fire etc) you won't get OUT thru that window! And no one will...
  11. S

    Transmission Rebuild, Collapsed Lifter Debacle - Opinions Needed

    sorry my friend. it aint the Tranny guys fault. Unless you abused the oil change interval, its THE ENGINE!! You must like the truck to go for the new tranny. if true, fix the engine, drive it another year and trade in for a non Gm V8. you'll get maybe half your $ back.... Or leave it under...
  12. S

    2025/2026 6.2’s now failing.

    lol....2015 Yukon Denali, original owner, religious oil changes, never towed, but did very limited beach roving. 2 engines before 62k. Put me through a Paperwork colonoscopy, for the 3 or 4 non- dealer oil changes. Finally approved Rebuilds, after almost killing me in instant, highway engine...
  13. S

    New purchase 2025 tahoe - warranty question

    Yes!! SAVE EVERY OIL RECEIPT!! IT MATTERS!!! BEST SS
  14. S

    New purchase 2025 tahoe - warranty question

    "Endurance" saved my bacon when 6.2L blew up w48K, then78K. First time GM handled, but then Endurance" handled ( bought at GM Dealer but online too) under their $3000 plan. ( save every oil receipt!) 5 years goes fast! Get a warranty if ya keep it! Can buy after a year also..... I traded...
  15. S

    Should I buy a 2026 Tahoe Z71 with 5.3 Engine?

    don't! major engine probs for most w V8 !! Stay away. Almost got me killed on highway.....
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