Depends on many factors. Inspect the belt for cracks & wear and replace it as necessary. It should last at least 100,000 miles, but it may not.
This question is poorly written and needs serious revision before someone can answer it.
30.000 - 40.000
The Serpentine Belt needs to be tightend with the tensioner pulley (Idler Pulley)
When a serpentine belt is loose it means either the belt has stretched and needs replacing, or the idler tensioner is defective and needs replacing, or both.
Yes, your car needs a safety if changing the ownership in Ont.
if a serpentine belt is loose, it needs replacing. there is an automatic tension pulley on all serpentine belts. so just buy a new belt and install
Serpentine belt has stretched and needs replacing or the tensioner is defective or both.
There is a spring loaded tensioner that is supposed to keep the serpentine tight. If it is loose, it needs to be replaced.
You don't tighten a serpentine belt. The tension is controlled by a tensioner. If it is loose, then the belt has stretched and needs replacing.
You don't, it has a spring loaded tensioner, If the serpentine belt is loose the tensioner has failed and needs to be replaced
80,000 for petrol and 60,000 for diesel
Sometimes when a serpentine belt squeals it's because it is too worn or lose to grip the pulleys properly. It could also just be that the tension needs to be adjusted. If the belt is getting worn out, it's best to replace it before you get stranded.