random misfire

  1. J

    Misfire on cylinder 1, cylinder 2, and random misfire

    Hello everyone, I have a 1998 Jeep Wrangler 4.0L, I have a check engine light on and it’s giving me the following codes: P0300- multiple/ random cylinder misfire P0301- cylinder 1 misfire P0302- cylinder 2 misfire Anyone know what my issue may be? Been trying to fix this on my days off from...
  2. S

    Misfire on cold start

    2004 Jeep Wrangler 4.0 Hello guys, first time ever posting in a forum so I'll jump right into the issue. In the past week it's been below 0° in the mornings, when I start my jeep on the cold mornings I get a misfire out of cylinder 2 and 3, once the engine warms up it seems to run fine, maybe a...
  3. G

    P0300 code and random misfire on 2006 TJ

    Lookin for some input from the gurus! 06 jeep tj sport 4.0 auto, 23k original miles - Inherited 2 years ago and have been tracking a P0300 random misfire from day 1. Only happens on cold start/first start of the day, runs great otherwise (although power seems like it should be better, not my...
  4. Meatlord

    Late model 4.0 missfire issues discussion

    Back story, I bought an 06 Rubicon 6spd from a local with a misfire issue for a reasonable price. I'm no stranger to jeeps or the 4.0 engine either. 200k miles, look to be all road miles, PO was surprised on the test drive when I got the diff lock lights to come on... This condition exists...