So just recently my check engine light has gone on. The engine seems to be idling a little rough. When it started I assumed it was just the recent cold weather taking its toll. i have checked oil and my fluids are all good. I thought that may have been the case so I reset the light but it came back on today. what I have noticed while driving at a constant speed the engine feels really jerky. It feels like something probably isnt firing right. I am hoping its not more than the plugs and I am assuming its not the clutch because why would the check engine light come on. I'll hopefully be able to get it looked at within the next couple of days but any suggestions on what I might be able to check for and possible correct myself would be great. I suppose knowing it is a 00 tj sport roughly 55k mi on it would help
Originally Posted by spider10382
Interent diagnosis is just someone's best guess. You'll get a definite answer by pulling the codes.
Do you know the key trick? On (not cranking) and off 3 times. Leave it on the 3rd or 4th time (I can't remember, my 98 does not do this). Codes will then display in the odometer.
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