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  1. 2

    Got 99 problems and my Gen 1 is 1

    Okay, so I guess this is “solved,” and the first shop was right after all. I drove two more Gen 1s today and they both had the same shaking shuddering idle mine does. I only got to hook Forscan up to one and it also produced some minor misfires, so that checks out to be “normal” as well and is...
  2. 2

    Got 99 problems and my Gen 1 is 1

    Did you have chain slap or anything else associated with it?
  3. 2

    Got 99 problems and my Gen 1 is 1

    Thank you! I’ll check all of these tomorrow. I did have an older 06 4.6 f150 that had a failing PCM from corrosion, could definitely be an issue again.
  4. 2

    Got 99 problems and my Gen 1 is 1

    Thanks for all the info and suggestions to everyone who replied. Today I replaced the upstream 02 sensors, and the remaining 4 injectors as well as soaked the cylinders with sea foam. It smoked up a lot of carbon, but still runs the same. Following the compression test, I did use a bore scope...
  5. 2

    Got 99 problems and my Gen 1 is 1

    I haven’t, but I will. I’m starting to think it’s exhaust related, also because that’s basically all that’s left aside from the ECU. It is hard to believe an exhaust issue would only affect one cylinder… but maybe the misfires I’m seeing are a red herring to the idle problem anyway. Could maybe...
  6. 2

    Got 99 problems and my Gen 1 is 1

    Well, compression looks fine…
  7. 2

    Got 99 problems and my Gen 1 is 1

    I looked at the throttle body and cleaned it. Throttle % in Forscan looks stable as well. Figures.
  8. 2

    Got 99 problems and my Gen 1 is 1

    Something I noted today is when idling in drive, the idle seems to level out a lot. Not perfect, but less shaking, less shuddering and on Forscan the fluctuation changes to about 585-605. When put back into park, shuddering increases and idle fluctuation increases and again goes down to about...
  9. 2

    Got 99 problems and my Gen 1 is 1

    Sorta. When it idles, it’ll idle normally and every half second or so it’ll shudder. It is reproducible up to about 2000rpm and increased with rpm. Some shudders aren’t very noticeable and some feel like it’s about to die. When I monitor the RPM, it doesn’t really seem to dip much when it does...
  10. 2

    Got 99 problems and my Gen 1 is 1

    *Updated 11/12/24* Hello everyone! I’m Jay. Apologies for the very long first post. My Raptor is a 2011 6.2 with 110k. Bought from the original owner with full service records showing 6k oil change intervals and all suggested maintenance performed. Literally does not have a single scratch on...

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