Exhaust Leak

An exhaust leak can definitely sound like a ticking sound. It may also sounding like a PSHH sound too. I've heard of people using fog machines, or something that spews smoke, and fogging the engine bay and the rest of the exhaust to see where it's coming from. You won't really be able to "feel" the leak, unless it's a BIG one, like my open EGR bung was. My cap had fallen off, and when I was setting the fuel pressure, I blipped the throttle on the throttle body, and felt a ton of hot exhaust gases blasting my hand and face. I looked down and that hole was wide open, lol.