Back to all

The Commerce Auto Repair Guide for Commerce Drivers: Serpentine Belt Overview

November 11, 2015

Your serpentine belt drives important engine accessories like your alternator, air conditioning compressor, and power steering. In some autos it may also power the power brakes or water pump. The serpentine belt is powered by the engine and winds around pulleys and the accessories. Some autos have two serpentine belts.


The serpentine belt, the belt tensioner (which maintains the appropriate tension on the belt) and the idler pulleys are together known as the accessory drive system.

Now your serpentine belt and the belt tensioner will just wear out over time – that’s why your vehicle manufacturer has a scheduled belt replacement interval. The team at Commerce Auto Repair in Commerce can check your serpentine belt for wear and get it replaced if it’s time.

Give us a call

Commerce Auto Repair
248.363.3749
9575 Commerce Rd.
Commerce, Michigan 48382

Need Service?

Request a Quote

More articles from Commerce Auto Repair

Don?t Skip Out on These! (Vehicle Maintenance Items You Should Never Postpone)

December 14, 2025

Maybe that little sticker on your windshield is giving you the reminder that its time for your vehicle to have an oil change. Youve thought, Aw, I can skip this one and save myself a little money. When it comes to things you should never ignore on your vehicle, timely oil changes are number one... More

Don?t Blow Your Cool (Water Pump Replacement)

December 7, 2025

Its always a good idea to keep your cool, and thats especially true when it comes to some components of your vehicle. One is the engine. Its hot under that hood thanks to the mini explosions that are occurring in the internal combustion engine when its running. Your vehicle has a cooling syste... More

Mileage Headed Downhill? (What Causes Bad Fuel Economy?)

November 30, 2025

Name someone you know who enjoys spending a lot of money on gasoline. Yeah, me neither. Thats because it costs quite a bit to keep fueling your vehicle. One way to save money on gas is to get good fuel economy, and most of todays vehicles are designed to maximize your mileage. But you might f... More