The noise could be a multitude of things...
An old belt that is on its way out
An oil leak that is dripping onto a belt/pulley and burns off after 15 mins etc
A failing pulley bearing that is ok once warm
Alternator struggling to meet demand when battery is low and heated things are on (mine has a bit of a squeak on start up when I put seats, screen and s/wheel on)
A/C compressor - when was the last time you had the A/C serviced? The oil in the comp' needs replacing every few years.
An old belt that is on its way out
An oil leak that is dripping onto a belt/pulley and burns off after 15 mins etc
A failing pulley bearing that is ok once warm
Alternator struggling to meet demand when battery is low and heated things are on (mine has a bit of a squeak on start up when I put seats, screen and s/wheel on)
A/C compressor - when was the last time you had the A/C serviced? The oil in the comp' needs replacing every few years.
