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misfire

  1. T

    2021 misfiring... any solutions?

    Good morning, My 2021 Ram 1500 5.7 hemi has had an intermittent misfire since July 3rd, 2023. I have 44k miles on it. It is not my daily commute vehicle. I drive it on the weeknights and weekends. The first time was the 6th cylinder. Sent to the dealer and found 10 misfires in a 600...
  2. John89

    Engine Misfire on Cold Start or Idle

    Hey Guys, my 2023 ram 1500 had its engine replaced due to flooding. Recently, I had the check engine light (CEL) come on with a code for cylinder #7 misfire. Went to the dealer and they “fixed” it. I get home and put on the live data module using an OBD-II scanner and all cylinders had a misfire...
  3. Tophert08

    Need Help.Multiple Fuel injector failure

    Tried searching couldn’t find the info I need. Just bought a used 19 big Horn 5.7 with 25xxx miles (my first mopar) had a slightly rough idle since I bought it figured it was normal. Previous truck was a 6.2L GMC Sierra Denali that required premium fuel so I always run 91/93 premium as a habit...
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