The answer to 'sewer line making gurgling noise' is that a gurgling sound in your sewer line is often a sign of a blockage or other issue that needs to be addressed. This can be caused by a buildup of debris, tree roots growing into the line, or a problem with the vent system.
Some common symptoms of a sewer line issue include slow draining sinks and toilets, foul odors, and water backing up into the home. If left unchecked, this problem can lead to more serious damage and costly repairs, so it's important to address it promptly.