Hello and thank you to anyone who reads this and gives me advice. I drive a 2003 Focus ZX5. Over the last year, it’s run pretty well, but one problem I encountered was that it would not start (occasionally) if I drove in traffic for a while and the engine was warm (not overheated). I mentioned this to my mechanic when the serpentine belt was replaced several months ago, but he was not able to repeat the problem and diagnose it. A couple days ago, the car started to run terribly (vibrating) and struggling when I pressed the gas. I took it to the nearest mechanic (not my normal mechanic) and had the spark plugs and ignition coil replaced. It seems to have alleviated the problem. So . . . a couple questions:
- Was the engine’s difficulty starting related to the spark plugs?
- On a separate note, the mechanic I just saw advised that some of the vibrations (for instance, in idle) could be resolved with new motor and transmission mounts, which is not cheap. Is it worth it?
Again, thank you for your help.