If one of the pulleys is not rotating easily, the belt may be wearing from excessive drag. Don’t forget to verify first the serpentine/driving belt which in most cases is the reason of this problem, otherwise it will be necessary to swap the tensioner or pulley. The idler pulley is another one of the pulleys which help keep the serpentine belt moving.
Serpentine Belt Tensioner & Pulley Assembly for Accord
One really important thing to keep in mind is that when the belt is off, the tensioner travel is longer than when it's on the.
A stretched belt causes the tensioner pulley to make a squeal noise apparently.
Grinding or squeaking noise from the belts or tensioner. An intermittent noise might signify the tensioner is not holding proper tension,. Belt noise can be caused by a tension, alignment or wear issue. Up to $8 cash back 1.
If you're coach still have the oem tensioner, chances are that's your noise.
If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started. At first it would only make noise for the first couple minutes after starting it in the morning. The serpentine belt will also become damaged until it breaks. Eventually it starting doing it almost constantly.
Here’s a more detailed list of the reasons why you hear idler pulley noise coming from your engine:
To troubleshoot this issue, thoroughly inspect the tensioner and all pulleys. Listen to the tensioner noise to note if the sound is intermittent or constant. Is the soot greasy (like oil) or dusty (like from wear of the belt)? The dealer said the tensioner pulley was making the noise but the belt was showing signs of uneven wear so they replaced both under warranty.
So to prevent this from happening again, you need to identify the part that’s misaligned.
Your belt does look old and brown like my old belt so it wouldn't hurt to replace it. It can also be caused by a damaged pulley which creates a loud noise. A misaligned tensioner or pulley throws the serpentine belt’s alignment of whack. The noise reminds me of a metal fan blade just nicking a solid metal object.
The most common cause of idler pulley noise is a worn pulley or a slipping serpentine belt.
If the idler pulley is misaligned, then the serpentine belt will make noise. If you have belt noise that sounds like a squeal or chirp, you’ve got an underlying problem that must be fixed. Your noise doesn't sound like a squeal but it could just be the video. The #1 cause of serpentine belt noise is a worn automatic serpentine belt tensioner.
Start your vehicle, leave the transmission in park, set the parking brake and open the hood.
A serpentine belt is meant to run on various pulleys, like the idler pulley, and if any of the devices or tensioner pulley is not correctly aligned with the serpentine belt, the serpentine belt noise will occur, often in the form of a squeal. It is also possible for the tensioner pulley or bearing to wear out, in which case the. It helps move the other engine accessories too. I have developed a noise coming from the front of the engine, more noticeable on the driver's side in the area of the serpentine belt/fan area, that i believe is related to the serpentine belt idler or tensioner.
You are correct, crank it counterclockwise to loosen tension, then slip the belt off the top idler pulley (you don't have to undo the whole belt from everything, just slide it off the pulley).
Aside from the pulley of your drive belt tensioner, the idler pulley can cause the serpentine belt to make noises too. With engine running using a spray bottle of water, spray some on belt. The most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. Both the tensioner pulley and idler pulley use a 14mm socket.
From here, the problems evolve into engine overheat and stalling.
The squealing noise will be hard to miss. Most people blame the belt and replace it only to find the belt noise returns. Almost a 'ping' type of noise, but not quite. Other possibilities, the dynamic belt tensioner or the disengageable pulley of the alternator may be at the source of this problem.
If noise temporary goes away, then you have a misaligned pulley, probably due to worn tensioner or idler pulley, if noise get louder, the tensioner is bad.
