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2016 Suburban 5.3 rough idle

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    • February 9, 2020 at 7:23 am #587359
      stevensb@burb
      Participant

      I have a 2016 Suburban 1500, LT, 4 wheel drive, 55k miles – I’m having a problem with it idling rough. In gear at a stop light you can really feel it. I’ve had it into the Chevy dealer several times and they say no codes and everything seems good?
      Is anyone experiencing this issue or have any ideas?
      Thanks

    • February 20, 2020 at 2:27 am #588895
      Bob2C
      Participant

      Yep. My 2018 has been like that since new. Dealer replaced motor mounts under TSB. It helped but I couldnt take it anymore so I got a Diablo Sport Tuner and raised the idle 100 RPM while in drive. Smooth as butter

    • February 22, 2020 at 2:49 am #589163
      stevensb@burb
      Participant

      Yes, the rough idle is driving my nuts 🙂 !
      Thank you for your response, I’ll try it!

    • February 27, 2020 at 8:55 pm #589676
      raajchavan
      Participant

      buy soccer tips

    • April 19, 2020 at 9:57 am #597475
      Jkinser31
      Participant

      There are multiple issues that cause this. I’d take it back to the dealer and tell them to preform a AFIT test on the fuel system. These are known for leaky fuel injectiors or high pressure fuel pumps. Or a worn cam lobe ive seen that not t how any codes also. Ive replaced lots that weren’t throwing any codes or showing misfires in the misfire data that fixed the problem.

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