Mitsubishi Mirage cold start issue with no diagnostic findings from dealer on Mitsubishi Mirage

Some Mitsubishi Mirage owners report experiencing cold start issues, including an engine that constantly revs up and down until warmed up, which could be attributed to factors like fuel quality or engine flooding. Additionally, some owners find that their vehicle won't start in cold weather, often due to diminished battery capacity affecting cold cranking amps. Other reported problems include poor cold starts, rough running, and misfiring, potentially linked to faulty glow plugs, voltage supply issues, or other electrical components. A slow or non-cranking engine may indicate a weak or dead 12v battery, which can be confirmed through a battery voltage test. Some owners have also noted that using a lower grade gas, such as 89 instead of 92, has helped resolve certain performance issues. If diagnostic findings are inconclusive, it may be advisable for owners to discuss these common concerns with their dealer or seek a second opinion from a mechanic experienced with Mitsubishi vehicles.