It is normally caused by sticking hydraulic lifters or lifters that need adjustment. Try pouring one can of Seafoam in the crankcase. If it helps then change the oil at your normal interval and then add another can. You can buy it at any auto parts store and Walmart.
The guy in the trunk is still alive!!!
Stuck hydraulic lifter.
loose exhaust
A whistling noise indicates a vacuum leak.
Exhaust leaks, bent pushrod
after market oil filter have been known to cause engine noises in kia's
can you elaborate? engine noise? stationary/moving? ticking, tapping or a definite knocking?
bad bearings, probably a pinion bearing
Most likely cause-valvetrain noise, check oil level, pressure, also possible engine knock. If you have a knock sensor, mil should be illuminated
Possibly warped brake rotor/worn brake pads. Get this checked out.
something hitting the pipe, hot water pipe touching cold water pipe, or is it burping noise ? a tapping noise is sharp, do you live in an apartment ? is this a house, lot s of causes,
hydraulic lifter? Rocker arm?