Why does the idler pulley make a squealing noise?
When the serpentine belt breaks, you have bigger problems to deal with. The engine might stall or overheat as a result. Plus, the squealing noise is going to become consistently louder, creating an annoying ride. The idler pulley and belt are located near the front of the engine.
How can I tell if my idler pulley is bad?
One easily noticeable symptom is a squealing or other strange noise coming from the engine area. This will likely be the beginning stages of idler pulley problems or problems with the serpentine belt.
What makes a loud squealing noise when you start the engine?
This sound comes from the serpentine belt rubbing against the surface of the pulley. In severe cases, the pulley may slip off of its route or get stuck causing the belt to create loud squealing noise at the time of starting the engine.
Why do I need an idler tensioner pulley?
The idler tensioner pulley guides all of the drive belts. It is needed to route the belts around all of the accessories. With an idler pulley, the belts are aligned properly for a smooth rotation, ensuring that the function of your vehicle operates as it should.
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.
What does it mean when your idler pulley rattles?
Average rating from 138 customers who received a Loud squealing or rattling is coming from engine Inspection. Idler pulleys are engine pulleys that are responsible for guiding and tensioning the engine drive belts.
Why does my Ford cold start belt make a squeal noise?
One thing to check for would be pulley wobble. If your looking at it and you see them moving it could be bad bearings in then pulleys. I’d have Ford recheck and listen (with a mechanics stethoscope) for noise in your pulleys. Anther cause could be a dried out/cracked/inferior belt.
What makes a squealing noise when you start the car?
It also seems to be making a subtle squealing noise somewhat while driving, however not as loud as cold start. I remember seeing someone on the fb page mention the “idler pulley & tensioner”. Could that be it?