Posts Tagged: belt chirp
How to Find the Cause of Serpentine Belt Noise
The Most Common Causes of Belt Noise Quick Summary If you’re hearing belt noise, don’t assume the serpentine belt is bad. In my experience, the most common causes are a weak automatic belt tensioner, pulley misalignment, worn pulley bearings, or a belt that’s worn even though it looks perfectly good. The key to a permanent squeaky belt noise fix is diagnosing the entire belt drive system—not simply replacing the belt or trying to spray a belt to stop noise. In this guide, I’ll show you the same diagnostic process I’ve … Read More
How to Diagnose a Bad Serpentine Belt Tensioner Before It Fails:
Diagnose a Serpentine Drive Belt Tensioner Like a Pro When your car starts making strange noises or you lose power steering or AC, the culprit might not be the belt itself, but the serpentine drive belt tensioner. As an experienced technician, I’ve diagnosed and replaced countless tensioners, and I can tell you: catching the early signs can save you from a roadside breakdown or engine damage. Let me walk you through how I diagnose a failing serpentine drive belt tensioner, what belt tensioner symptoms you should watch for, and how … Read More