Noise gets louder when engine gets hot. When motor is cool you cant hear it for the first mile while acclerating. After the motor gets warm you can start to hear the ticking. Car was fine on the way down to clearwater yesterday, as soon as i arrived it started to act funny. I replaced my exhaust manifold gasket last week because it was leaking. after i replaced the gasket the leak was fixed and i checked for exhaust leaks but didnt find anything. I reved the motor from the engine bay but cant hear the ticking unless im behind the wheel and accelerating. So im still up in the air on what is wrong. ??