misfire random

  1. Nick Mitty

    4.0 - Low RPM Misfiring Issues

    Hello Everyone, I am currently experiencing a misfire issue on my TJ. I have read through the other similar threads here to begin diagnosing and fixing the issue, but with no luck so far. So I have decided to outline my issue as best I can below. Jeep Information: 2006 Jeep Wrangler TJ Sport /...
  2. M

    A ghost of a misfire

    Alright, I have a misfire. No one has been able to find it, it's a ghost, and it's so slight it's almost a ghost as well. So, tiny misfire, but consistent. You can hear it every second, or every couple of seconds, or several times a second. There's no predicting. It happens if it's under...
  3. G

    98 TJ 4.0 intermittent misfire, no codes

    I'll be driving along with the engine hot and it misfires under steady throttle causing the whole car to jolt. The tach needle drops a few hundred and then shoots right back but there are never any codes. This problem has been happening over the past couple of years, it'll misfire here and...
  4. Lorenzo Altarocca

    Misfire with no codes

    Hi from Rome, Italy where I converted my 1999 Jeep Wrangler 4.0L in a LPG powered to pass emission restrictions here and run everyday as a daily driver in city centre. I decided to make this post cause I can't really figured out the problem after many attemps. Symptoms are some little random...
  5. Zach O'Neill

    Random Stall / Misfire

    Firstly apologies, I’ve posted quite a bit about this in the past but I’m at a loss and don’t really know what else to do. So here I am again , I’ve had some major issues with my 2004 4.0 Auto TJ that I’ve posted extensively about and had some really helpful conversations about , but...
  6. Jakob McElhaney

    97 TJ 4.0 Misfire at operating temp

    I am finally caving, and coming to the forum for help. I have a 97 TJ Sport 4.0. A while back, the jeep would begin to sputter, or sound like it was misfiring when it got up to operating temperature and after driving it around for 30-60 minutes. It was / is super weird, but I would pull into...
  7. clyankee

    Crankshaft position sensor and misfire code

    I know there are many threads on the issue, but need advice on next steps for issue. Jeep continues to stall/sputter after driven about 30 minutes and to operating temperature. Gauges, go dead, pull over, restart and fine. Sometimes throws CPS code other times not. Sometimes throws both CPS...