[richtazz]

Welcome to AF. Since the ticking is coming from the rear of the car, it's most likely the purge canister (located in the left rear quarter panel between the tank and the fender) and is normal. You normally wouldn't hear it because it doesn't purge until the engine is started. Tblakes suggestions are good ones, and you'll need to check fuel pressure with a guage to determine if you're getting fuel pressure at the schrader valve when the no-start occurs. Fuel pumps can act up intermittently.