Actually, you don't want t loosen them. The noise is because the serpentine belt is slipping. When the vehicle first starts, the alternator works a little extra hard to put electrical energy back into the battery for use next time you need to start the engine. That extra electrical energy requires that the belt deliver more power to the alternator and if things aren't working right the belt will make that sound as it slips. Examine the belt. Are there cracks, missing sections of the ribs? Do you see signs of wear? If so, replace the serpentine belt. If that doesn't solve the problem, you probably have a weak belt tensioner.
it sounds lkike a little screaching noiuse
Sounds like a belt or belt tensioner needs to be replaced
running
Depends on the noise. If it's a high screaching type of sounds the a/c belt is probably worn or dryed out so replace it. If it's a rattling sound it's probably a bearing that has gone bad.
check the filter
There are two vowel sounds in the word "running": the short "u" sound in the first syllable and the short "i" sound in the second syllable.
Sounds like the engine heats and the ignition fails.
Sounds like your hormones are running amok. You have to see a doctor.
Sounds like the regulator in the alternator is going out.
It sounds like the alternator is bad. If the alternator is bad the battery will not hold charge when running
Shock wave sounds is an excellent website to use when looking for audio files of running water. They have a variety of sounds for you to choose from . You can purchase them from under the heading Nature and environment.
you turn on the wipers and it sounds like theres a gear sliping, sounds like its running but makes noise?