Diyvehiclerepair
- Why is my belt making a noise after I replaced it?
- Is it normal for belt tensioner to bounce?
- What does a loose belt tensioner sound like?
- Do new serpentine belts make noise?
- What causes Fanbelt noise?
- What does a bad alternator belt sound like?
- How do I know if my belt tensioner is bad?
- Can a bad belt tensioner cause rough idle?
- Should belt tensioner bounce at idle?
- Can I drive with a noisy tensioner?
- What noise does a bad idler pulley make?
- Can a bad alternator cause belt squeal?
- Does a cam belt make a noise?
Why is my belt making a noise after I replaced it?
Noise of that type is due to a failed or failing bearing in one of the pulleys or accessories (e.g., alternator, water pump, A/C compressor) that is driven by the serpentine belt, the belt is not properly tensioned, or the rotating pulleys driven by the belt are not all in the same plane.
Is it normal for belt tensioner to bounce?
It is important to note that any abnormal chattering or bouncing of the tensioner arm under normal operation indicates the tensioner has already failed and should be replaced.
What does a loose belt tensioner sound like?
If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started. It is also possible for the tensioner pulley or bearing to wear out, in which case the vehicle will produce a grinding noise from the pulley.
Do new serpentine belts make noise?
If the replacement belt isn't installed properly, even a brand new belt and new belt pulley won't stop the squealing noise. Fortunately, it's quite easy to detect this issue. If you've just got a new serpentine belt installed and yet you hear the squealing noise, chances are your mechanic didn't do a good enough job.
What causes Fanbelt noise?
Your engine belts make a screech or squeal noise usually because the rubber belt is slipping on the metal pulley and just like your tires spinning on the road, this causes noise. The belt may be slipping due to improper tension or because it simply has gotten old and the surface has become glazed, cracked or brittle.
What does a bad alternator belt sound like?
Symptoms of a broken serpentine belt include loud slapping, squealing or knocking noises coming from under the hood. The battery-shaped charging system warning light might also come on because the alternator will stop charging the battery.
How do I know if my belt tensioner is bad?
Watch the belt and belt tensioner while the engine is running. A bad belt tensioner spring will often cause the tension arm to bounce up and down with the cycling of the motor. This makes the belt wobble as the engine runs. These are definite signs that the tensioner needs replaced.
Can a bad belt tensioner cause rough idle?
No, not really. Generally a bad timing belt will cause a no idle condition. As in the engine will not run at all. A bad timing belt tensioner might allow a cam to jump a cog and be out of time, but you only get to jump so many cogs before very bad things happen.
Should belt tensioner bounce at idle?
Absolutely you'll see it bouncing slightly. The reason is, the belt will stretch and contract slightly as the engine speeds up/slows down. The tensioner provides two different functions: Provides tension to keep the serpentine belt tight during operation.
Can I drive with a noisy tensioner?
Driving with a bad belt tensioner is unsafe since the tensioner is meant to guarantee ample tension that powers accessories. Wear on the belt tensioner will eventually cause the belt to slip, generate loud noise, and also create an unsafe level of heat along the accessory pulleys.
What noise does a bad idler pulley make?
Squealing. When the engine is idling, a bad pulley may make a squealing sound. This is due to the bearings in the pulley going bad. The bearings may also make various other sounds such as clattering or even a rumbling sound, making the vehicle sound as if there was much more wrong than a bad pulley.
Can a bad alternator cause belt squeal?
A squealing alternator pulley is not only annoying, it indicates a problem with the car's belts or alternator. Left unattended, the problem that causes a pulley squeal will likely become worse and lead to expensive alternator or engine repairs.
Does a cam belt make a noise?
Noise. Sometimes, a cambelt will produce a loud noise when the car is running, this happens most often when the vehicle is first started and the engine is cold. The noise could be a squealing, hissing, grinding, rattling, chirping or rumbling kind of sound.
