Posted on 27March2026
Random misfires are annoying because the car can run great all week, then stumble once on a ramp or at a stoplight. When it does that, something is usually borderline rather than broken. Catching it early keeps the fix simpler. The best clues come from when the misfire shows up. What A Misfire Really Means A misfire is one cylinder not burning its air and fuel cleanly for a moment. You might feel a shake, a hesitation, or a soft loss of power, and sometimes you only see the check engine light. If it only happens at idle or only under load, that detail matters. The computer watches tiny speed changes in the crankshaft, so it can detect misfires you barely feel. A steady light means the issue is present, while a flashing light means back off and get it checked. Random misfire codes do not always point to a specific cylinder, so testing must be methodical. Ignition Problems That Come And Go Worn spark plugs and weak coils are common causes, especial ... read more