Took my car to a mechanic due to a ticking noise that was coming from the engine. He told me that this is the lifters that is causing this. he put some type of lifter solution??? and the the ticking is now intermittent all the time is just some times. when i start the car until i heats up then goes away and some times when i am @ a stop light. This is might be a stupid question but if the lifters are intermittently making noise how long do i have until something bad happens????