What Is an Idler Pulley on a Car? | Noises, Wear, Fix Costs
An idler pulley is a free-spinning wheel that guides the serpentine belt so engine accessories stay aligned and the belt runs smoothly. Pop the hood and you’ll see a long belt looping around several pulleys. That belt drives accessories like the alternator, A/C compressor, and, on many engines, the power steering pump and water pump. […]
What Is an Idler Pulley on a Car? | Noises, Wear, Fix Costs Read More »
