So, I'm in the drive-thru at McNasties . . .
. . . just sitting in my truck waiting for the car in front of me to advance forward so I can pay for my Quarter Pounder and fries. While in line, with the window down, I keep hearing this clicking sound from my engine while it's idling. It clicks, kind of makes the engine idle differently, then about a minute later it clicks again and does the same thing. I know it's not my AC running because I don't have the AC turned on. I heard this same sound on Saturday as well while it was idling.
What's going on do you think? Is that normal?