hole in fuel line inside tank
Could be your exhaust system specically your converter.
starter.......if it makes a turn over noise than its the altanator
Your tire rod is starting to go out
This be a wide range of things does it make the noise when the vehicle is in park and you rev up the engine ? It could be a heat shield on the exhaust system. it does not make the noise if it is just idling....but if you press the gas it makes a noise and when ur driving it makes noise. But I had to put a flang where the header conects to the exaust cuz it was leaking and i thought that was where the noise was comin from but its still makin the noise.
A loose belt that becomes more noticeable at cold temperatures.
/the water circulating noise could be low coolant in the system. If the coolant is bubbling in the overflow bottle, then check for a blown head gasket causing the noise.
It could be a sticking hydraulic lifter or valves that are slightly out of adjustment.
it makes a hollow noise when you pull on it but when it is a normal piece of paper it makes a crinkly noise
Usually any noise from plumbing is caused by air trapped in the system
it is the blend door in the duct system
a parrot makes a screech noise
my BMW does not start it just makes a click noise