- Reaction score
I haven’t done either. It’s kind of strange how this came on. Car was running fine one day. Sat for a couple weeks and then it wasn’t running right anymore. I’ve had a lot of other projects with the house this summer, and it was hella hot to boot, so the car sat. It runs pretty smooth so it would have to be multiple cylinders with issues if it’s a mechanical problem. Search on this for the Mustangs and vacuum leak keeps popping up.