2004 Mitsubishi Diamante Q&A
2004 Mitsubishi Diamante Question: Why does my car stammer when idleing...sounds as if it wants to choke out on me.
My 2004 Mitsubishi Diamante stammers while idling as if it wants to jump timing . It especially loves to do it while I am stuck in traffic or at stop light (especially when brakes are applied). I sometimes put the car in neutral while waiting in traffic and rev it up a little. I am also noticing a slight smell(like burning rubber) inside vehicle. Error code auto zone said #3 spark plug. - Visitor
You could indeed be experiencing a misfire from cylinder number 3, not necessarily a failed spark plug, but possibly a coil or other cylinder issue. It's a good place to start checking, but a code puller from a parts store only gives you a fraction of the story. Manual testing is needed to see what is actually happening, not to mention looking at a data stream of information from the engine's computer. - DaveJHM