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  1. R

    Cruise control turns off when Rear window Defrost is turned on

    I'll give you a history of my cruise control mysteriously turning off. Probably doesn't apply but .... Cruise control kept turning itself off. Dealer first said there was a chafed wire by the emergency brake that did it. Fixed the wire but the problem still existed. Dealer had car for almost...
  2. R

    Interesting AC Issue

    I tried but obviously missed those lines. They used dye.
  3. R

    Interesting AC Issue

    Had an AC leak. Looked everywhere with my freon sniffer and couldn't find it. Finally had to bite the bullet and take to a shop. They spent two days hunting and finally found it. An AC line runs all the way to the back of the Yukon and the leak was in the line back there. Had to have the...
    • rrosen
    • Thread
    • ac leak air conditioning
    • Replies: 5
    • Forum: Interior
  4. R

    2021 Denali died while on the road - 292 total miles

    Modern cars can have weird problems. My 2008 Denali had a problem where cruise control would cut off, or gauges would all drop to zero, or engine would stop, or various combos of the above. After a month in the shop and calling in GM tech support, they replaced the radio amplifier. Apparently...
  5. R

    Airbag light DIY or send it to the dealer?

    Had the exact same problem (2008 Yukon Denali XL). Left front sensor. Replaced, reset code, problem fixed. Remember to disconnect battery and let sit for a while before working on air bag system. I also turned on light to make sure to drain any residual power. Then had to go through that...
  6. R

    Weird vibration

    Thanks to all. In response to questions: - feel mostly in seat of pants - just started recently so it's new Since only under light acceleration, I'm guessing engine. But stumped on cause since no codes.
  7. R

    Weird vibration

    2008 Yukon XL Denali, 40K miles. Under light acceleration, it has a slight vibration between 35 and 40 mph under light acceleration. Doesn't happen under heavy acceleration. Not tires as they are brand new and were replaced shortly after this started. I know late model Corvettes had a...
  8. R

    How to beat parasitic battery drain?

    I've used C-TEK smart chargers for years and they work great.
  9. R

    Dealer not honoring warranty work..2018 5.3 Yukon issues

    Tell dealer you plan to lemon the vehicle if they can't correct the issue.
  10. R

    Dealer not honoring warranty work..2018 5.3 Yukon issues

  11. R

    Multiple simultaneous failures

    Well, my code reader now says left front ABS sensor bad. Looks pretty hard to get to so headed to the shop I guess.
  12. R

    Multiple simultaneous failures

    Driving my 2008 GMC Yukon XL Denali when all of a sudden, ABS light comes on along with stabilitrak failure and traction control failure warnings appearing. Previously service suspension warning had come on then gone away. I'm guessing an electrical failure because I can't believe everything...

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