Every vehicle has a water pump, a power-steering pump, and other accessories that are all powered by rubber drive belts. On older cars, each of these parts is operated by its own belt. However, on most modern vehicles, all of these same components are propelled by a single belt known as the serpentine belt. These belts should be monitored on a regular basis in case replacement is necessary.
Should I address a problem related to a belt if a professional recommends it?
Absolutely.
Why is it necessary to replace belts?
Belts in your vehicle are not invincible; they become worn down from usage, and they eventually decay and crack from exposure to ozone gases.
What happens if I decide to let the belts go?
If your car runs on belts unique to each part, and one of them snaps, you’ll obviously be lacking the particular function of the component that the belt was responsible for (e.g., alternator, power-steering pump, water pump, etc.). On the other hand, if the serpentine belt falls apart, all of these mechanisms will cease. This could cause the engine to overheat, and serious engine damage may be inevitable.
Is there any minor maintenance that should be completed between scheduled appointments?
You should scan the belts under your vehicle’s hood for imperfections such as cracks. If you hear a loud shriek come from the engine, you could have a loose belt. This may even be more noticeable when starting your car on a cold morning or rounding a sharp turn.
Quick tip
If you’re changing a serpentine belt on your own, keep track of how the replacement belt should be installed by drawing a diagram of the existing setup before removing the damaged belt.