What does idler pulley do?
The idler pulley is a common part that’s found on the majority of the vehicles on the road. Its primary function is to provide tension and guide the engine drive belt. These belts wrap around the various parts of the engine such as the power steering pump, alternator, water pump etc…
What causes belt to slip on idler pulley?
Over time, as the pulley spins against the belt, both components will eventually start to wear. This may lead to visible scoring marks on the surface of the pulley, as a result of contact with the belt. Eventually the pulley and belt will wear to the point of reducing tension, which may lead to the belt slipping. 2. Belt squealing
What is the average rating of an idler pulley?
Average rating from 130,153 customers who received a Vehicle Engine Mechanical Inspection. Idler pulleys are engine pulleys that are responsible for guiding and tensioning the engine drive belts.
Why does my idler pulley squeal when I Turn on the engine?
Another common symptom of a possible issue with the idler pulley is squealing from the engine belts. If the surface of the idler pulley wears, or the pulley seizes or binds it may cause the engine belt to squeal as a result of it rubbing against the surface of the pulley.
Can a car run without an idler pulley?
An engine without a belt can quickly run into issues such as overheating and stalling, as it’s the drive belt that allows the engine accessories to function. Idler pulleys are a common component found on the majority of road going vehicles that will eventually require replacement, especially in high mileage vehicles.
What are the symptoms of an idler pulley problem?
One of the first symptoms of an issue with an idler pulley is visible wear on the pulley. Over time, as the pulley spins against the belt, both components will eventually start to wear. This may lead to visible scoring marks on the surface of the pulley, as a result of contact with the belt.
Another common symptom of a possible issue with the idler pulley is squealing from the engine belts. If the surface of the idler pulley wears, or the pulley seizes or binds it may cause the engine belt to squeal as a result of it rubbing against the surface of the pulley.
An engine without a belt can quickly run into issues such as overheating and stalling, as it’s the drive belt that allows the engine accessories to function. Idler pulleys are a common component found on the majority of road going vehicles that will eventually require replacement, especially in high mileage vehicles.