Rick's Free Auto Repair Advice

Posts Tagged: belt noise

Serpentine Belt noise

Serpentine belt noise squeal or chirp How to diagnose and fix serpentine belt noise NOTE: Never spray a drive belt with belt dressing, WD-40 or any lubricant to quiet belt noise A serpentine belt can be damaged by motor oil and coolant. If you have an ongoing oil or coolant leak that drips onto the belt, fix that first. And, despite the fact that many Internet sources tell you to spray WD-40 onto a belt to quiet the noise or detect the cause, DON’T do it. You will ruin the … Read More

Serpentine Belt squeals – Ford

Serpentine Belt squeals – Ford Serpentine Belt squeals on 1999 Ford Taurus with the 3.0L overhead valve engine, belt dressing doesn’t help. Belt dressing sprays a sticky layer of goop onto the belt and that stops the belt slip, but it’s only a temporary fix. It never corrects the underlying problem. Worse yet, the sticky spray picks up road grit and literally grinds up the pulleys, making the problem even worse. Start by replacing the belt. If it still slips, the problem can only be caused by a component that’s … Read More


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