Sterling Tire & Auto Automotive Tips: Alternator
March 11, 2018
Your alternator makes electricity to start and run your engine and all of the vital electrical systems in your vehicle. That’s everything from the on-board computers to the turn signals. And of course there is the entertainment system, seat heaters, power windows and everything you plug into the power outlets. After your alternator makes enough electricity to do all that, it recharges your battery with what’s left over.
When Sterling Heights drivers constantly have a low or dead battery, the alternator is usually a prime suspect. However, the alternator is just one vital component of the starting/charging system, and a problem with any of the other components could be the actual cause.
In addition to the alternator, the charging/starting system includes the battery, starter, serpentine belt system and all of the electrical cables that connect them. Your Sterling Tire & Auto service advisor has a systematic process of testing components and connections to get to the source of your trouble. The initial symptoms determine where to begin the diagnostic process, and he follows the procedure until he tracks down the culprit.
For example, diagnostic tests at Sterling Tire & Auto could reveal that the alternator is not generating enough electricity to keep the battery charged. Is the alternator bad? Not necessarily. A worn serpentine belt tensioner could be allowing the belt that spins the alternator to slip. So the perfectly good alternator is not spinning at the proper speed. The solution for Sterling Heights drivers is to replace the serpentine belt system – not the alternator.
The good news for Sterling Heights drivers is that our highly-trained technicians at Sterling Tire & Auto can properly diagnose all your vehicle troubles and make the necessary repairs to get you back on the road in Sterling Heights.
Give us a call.
Sterling Tire & Auto
34701 Van Dyke Rd
Sterling Heights, Michigan 48312
586-264-7775
Need Service?
More articles from Sterling Tire & Auto

No Shake, Just Smooth
September 6, 2026
When your vehicles wheels are out of balance, theyll likely give you some clues. Your steering wheel might shake, the floor or seat vibrates and you might find your vehicle pulling to one side. Other signs? Your tires might wear unevenly and may make odd noises. Plus, fuel economy might not be ... More

Catching Trouble Early
August 30, 2026
Your vehicle depends on wheel bearings. Sitting between the wheels hub and axle, they allow your wheels to spin smoothly, bear the vehicles weight and work in harmony to stay aligned with other parts. Wheel bearings can fail in several ways, and they may send the driver some pretty clear clues... More

The Car Fluid Most Drivers Forget—And Why It Matters
August 23, 2026
Heres an automotive part you might not be familiar withthe differential. Its a component that transfers power from the driveshaft to the wheels. Its called a differential because the left and right drive wheels travel at different speeds when you make a turn. During that turn, the wheel on the ... More
