Squealing from the engine bay, especially on startup
Visible cracks or fraying on the belt
Belt has reached 60,000 to 100,000 miles
Power steering or AC stops working
What It Is
One long belt that snakes around pulleys to drive your alternator, power steering pump, AC compressor, and sometimes water pump.
Why It Matters
If it breaks while driving, you lose power steering, AC, and battery charging all at once, and you'll be stranded within minutes.
How to Save Money on Serpentine Belt Replacement
Have the tensioner inspected at the same time, a weak tensioner kills new belts fast
This is a very easy DIY job on most cars with a basic socket set
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