The spring coils have rusted and are rubbing together.
Garage door makes cracking sound painted.
The garage door noise you are hearing may simply be due to the fact that the door and track supports have loose or missing track bolts and screws causing the door to rattle in its rails.
Simply buy some oil based lubricant from your local garage door specialist and apply it to the metal parts the springs the rollers and the hinges.
Over time the coil of a spring can lock preventing smooth operation and causing a popping noise.
There are a couple of reasons why your door would be making this sound.
If your garage door makes a popping sound when opening it could be the torsion springs.
Lubricate the torsion springs.
Many garage doors use large torsion springs to assist in opening the door.
With the door open lubricate the spring generously with motor oil and a clean dry cloth.
To help open the door many garage doors come with big torsion springs.
Using a wrench and socket set to retighten these bolts and screws can potentially quiet the garage door almost completely.
This is an easy fix.
The spring coil over time can lock and prevent smooth operation.
Garage door making popping sound when opening.