if its a tick not a knock, its probably lifter noise. its not too terrible, once the weather warms up, i would recommend getting some thicker oil, if it fixes it, then im probably right.
The fuel injectors make the ticking noise you hear at startup, especially when the engine is cold (colder temperatures).
Try to locate the ticking noise. Is it the engine? Is it ticking when you are driving? When you are sitting still? It could be as simple as a stone stuck in yoru tire, everytime it hits the road it ticks. it could be a lifter in the engine. Try to be more specific as to where and when the ticking happens.
the ticking noise is a small exhaust leak close to the exhaust headers or exhaust pipe near the engine.
lifters
Insufficient information is given - but it could possibly be a sticking valve lifter that quiets down and the noise goes away after the engine is warm and the oil is circulating.
if ticking noise is in engine, u most likely have a worn hydraulic lifter. check oil for correct volume and viscocity
from which part of your engine is the ticking noise coming from. if is the TOP it would most likely be lifter noise.try using a thicker oil.
I get knocking & ping noise coming from the fuel injectors
your battery is dead
Bearing noise is usually deeper and comes from farther down in the engine. Lifter noise is more of a ticking and is up in the engine heads.
98 Chevy new 383 block 30k, ticking noise from sounds like heads . 210k on heads;
Possible lifters that are bad that could explain your ticking noise. It should cost you nothing by stopping by an Auto repair shop and have them listen to your engine.