yeah NA. injector cleaner?

when i turn the car on it sounds like a desiel, the injectors, but when i tap the gas the injectors stop making noise.

valves got adjusted no longer than 1 year ago.

changed the oil yesterday, no as a precaution, just that it was time to change it, sound is still there. the noise i hear in the car while driving, the ticking, im almost 90% sure its the alternator. when i spray that silicione the ticking in the car while driving almost goes away.