pleopard
Veteran Member
When cruising on the highway, and after reaching operating temp, from time to time I hear a rapid ticking sound coming from the engine bay. The first time I heard this was when the car had only 20-30 miles on it. My first thought was that something was wrong with my brand new car, but every 500-1000 miles, I hear the sound. It lasts about 5 seconds and may come on again once or twice more within a minute or two. It sounds a lot like injectors being fired on a test bench. Is there any chance this is the sound of injectors being fired on the exhaust stroke?