Serpentine Belts


Serpentine belts don't suffer in silence. If it's time for serpentine belt replacement, you'll hear the classic serpentine belt noise – a squeal under your hood. It may go away quickly the first time you hear it, but soon it's a constant whine that reminds you it's time to get under the hood. Read More

The serpentine belt has gone far to simplify the operation of under hood pumps and pulleys. This single belt runs every engine-driven accessory in your car. Your engine turns the water pump, alternator, a/c compressor and power steering pump with one long belt. Problems arise, though, when this particular belt breaks, so be sure to replace your serpentine belt at regular intervals.

Changing serpentine belts is important if you see any signs of fraying, cracking or glazing. When you're replacing a serpentine belt on your vehicle, you may require specialized removal tools. Take a good look at both your repair manual and your belt routing diagram under the hood before beginning. Some belt tensioners are sprung extremely tight and may cause personal injury if removed improperly.

Be careful when releasing tension from the belt. Spin the tensioner pulley by hand before installing the new belt. Noisy, loose or overly tight tensioner pulleys require replacement. Also, check the water pump for leakage. Double-check the belt and tensioner for correct tightness before starting engine.
Locate the self-adjusting tensioner. It is spring loaded, so be careful when loosening. Look at the way the old belt wraps around the pulleys. Take the new belt in hand and practice matching the routing.
Position the wrench or special removal tool on the tensioner. Make sure you have room to remove the tool once the tensioner is released. Release the tension. Beware of spring tension!
Remove the old belt. Check the tensioner pulley for wear. Also check all pumps and idler pulleys to make sure they move freely. Install the new belt. Line-up all belt ribs in the pulley grooves. Be sure that the belt is not twisted. Retighten the tensioner.
Using the best serpentine belts will give you the most mileage between service intervals. Visit Advance Auto Parts for high-quality auto parts.