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  1. Motojoe86

    The dreaded flashing Check Engine Light

    Leak down test would be good to check out but doubtful with that low miles if it was maintained. Speaking off of suggestions from my own problem, a lot of people told me sticky lifters are fairly common in these. It wouldn't hurt to replace quart of oil with a quart of no next oil change. I...
  2. Motojoe86

    The dreaded flashing Check Engine Light

    What fuel pump did you put in? If it was an off brand it could very likely an issue. May try maintainence items first, fuel filter, pc, regulator, etc... Cheap and good upkeep anyhow. I would also check the cat. How are your o2 readings?
  3. Motojoe86

    The dreaded flashing Check Engine Light

    On the bright side, probably cleaned up your internals a bit! Lol. Glad you got it fixed
  4. Motojoe86

    The dreaded flashing Check Engine Light

    I finally got it fixed. It turned out to be 2 separate issues. My intake was bad (shocker). I had no immediate nor obvious telltale signs. Carb cleaner didnt raise idle. Smoke test didn't habe discernible smoke coming out. Changed the intake gasket anyway to see. It immediately stopped the cold...
  5. Motojoe86

    The dreaded flashing Check Engine Light

    Would that likely be intake manifold? I know its not scientific but I sprayed all around engine a few times with carb cleaner and never got an idle change. I think I am in over my head
  6. Motojoe86

    The dreaded flashing Check Engine Light

    As it turns out, im a complete idiot lol. I was reading wrong dial. It actually was positive 25 fuel trim. I noticed when I rev it up, fuel trim comes back into range. I believe thats inline with a vacuum leak? Im still learning the nuances of this app. I'll try to find o2 info. Thanks!
  7. Motojoe86

    The dreaded flashing Check Engine Light

    Im sorry, I meant to say fuel trim. I have to re read through these posts lol. I think someone said that far negative fuel trim meant vacuum leak maybe?
  8. Motojoe86

    The dreaded flashing Check Engine Light

    Intake manifold maybe? :-(
  9. Motojoe86

    The dreaded flashing Check Engine Light

    Just picked up bluetooth obd2 and bought the torque app. My fuel rail at idle reads -19.6... I presume that means a vacuum leak?
  10. Motojoe86

    The dreaded flashing Check Engine Light

    My cel was never on. Flashed over 80. Stayed on since i changed o2 sensors yesterday. Hoping it just needs engine cycle
  11. Motojoe86

    The dreaded flashing Check Engine Light

    The good news is, its only 7 codes! Lol. 4 were repeats. However, these came upon battery disconnect and o2 sensor replacement. Im cautiously optimistic that it needs a run cycle to recalibrate. I will know tomorrow though as I will be putting on good chunk of miles tonight
  12. Motojoe86

    The dreaded flashing Check Engine Light

  13. Motojoe86

    The dreaded flashing Check Engine Light

    Trouble code was posted at start. P0300 random misfire. Jist got new ones with o2 sensor replacement though, will post shortly when I get the paper
  14. Motojoe86

    The dreaded flashing Check Engine Light

    Thanks! Ill upload printout when I get back
  15. Motojoe86

    The dreaded flashing Check Engine Light

    How do i post pictures?
  16. Motojoe86

    The dreaded flashing Check Engine Light

    I scanned it at autozone lol. I dont have the paper with me but ill post it tonight. It was a 11 codes I think so something else is triggering it. That said, I dont know that battery reset properly though because my radio presets and time were still there. I have a good 70 mile cruise to watch...
  17. Motojoe86

    The dreaded flashing Check Engine Light

    I just pulled negative cable for 30 minutes with safeties on but didn't clear. I presume i have to pull both?
  18. Motojoe86

    The dreaded flashing Check Engine Light

    Im hoping after truck goes through cycle with o2s, it will reconfigure. Im gonna hit pipe with thermal temp gun this week. If it looks like clogged cat, Ill message you to order next weekend. Thanks!
  19. Motojoe86

    The dreaded flashing Check Engine Light

    I tried that when i did o2s. Sound solid, no rattling or anything loose. Actually look very solid and clean from exterior too (I know that doesn't mean anything though). Im hoping maybe the computer needs to cycle and o2 sensors end up clearing it up. Im gonna hit with thermal temp gun this week...
  20. Motojoe86

    The dreaded flashing Check Engine Light

    I will give that a shot tomorrow or tuesday when I can get out of snow haha. Thanks. I wanna do the cats but Im gonna be really bummed if that isnt it. I saw someone on this thread has them cheap and then I just gotta pay to get them welded
  21. Motojoe86

    The dreaded flashing Check Engine Light

    Well, changed upstream o2s and now its running worse then before. Idle is dipping a bunch and has died out couple times... Think its time for new vehicle
  22. Motojoe86

    The dreaded flashing Check Engine Light

    I just swapped them all out a few ho7rs ago lol. Check engine is on but I am gonna drive it through the week so it gets a run cycle and I'll update if that made a difference. Thanks!
  23. Motojoe86

    The dreaded flashing Check Engine Light

    Also, someone tild me it could be sticking lifters... Does that seem inline with the symptom does anyone know? And if so, I presume theres no easyish fix for that without tear down? Thanks!
  24. Motojoe86

    03 Tahoe 5.3 blinking check engine light misfire

    Thanks for the info. Unfortunately I forgot to mention in initial post, I do have a new battery on it. Seeming from posts and narrowing down its either intake or cat/o2 sensors. Really hoping its not intake because Im afraid of that job lol
  25. Motojoe86

    The dreaded flashing Check Engine Light

    What do you mean your trims? Was that causing blinking cel?

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