Horrible engine noise
On firday I parked my car up at the girlfriends, and left one fo the lights on. Came to sunday and there was no charge left so had to call out the RAC (very good, came in 40 minutes vs 6 hours for the AA).
Anyway when we got the engine started it ran rough as anything, sounded like a loud popping noise from the air intake and the engine itself was vibrating very heavily on the mounts, it looked like it was going to jump out of the engine bay.
After about a minute it stopped and ran properly, RAC guy said it sounded like a sticking valve, would this have caused any damage? Is there any reason for it?