Continuous Squeal from Serpentine Belt

For reference, my truck has 29K miles, 4.0 V6.

In the past week, I have noticed a loud squealing sound coming from the serpentine belt. I have read threads on here that talk about how it goes away after a while, however, the squealing continues regardless if I am in park, drive, accelerating or decelerating.

I know some have mentioned a bad belt, pulley, or tensioner...however, since the squealing is continuous, would that point to a specific issue?

Anything in specific I need to examine, look for?

 

you have checked the tension, right?

 

Are you talking insofar as just grabbing the belt to see if its taut?

 

Don’t wait for it to go away, that squeal is friction and it’s slowly wearing out the belt. It needs to be tightened up.

 

Okay...not the most mechanically inclined, how do I go about tightening it?

 

The tensioner needs to go to the right a tad to make the belts more taught to the touch.

 

I'm not sure if you do. There's a belt tensioner that puts all the pressere on the belt. I'm not sure if they are adjustable?

 

Not sure either

 

As most people know, there are many different methods to adjust V-belt tension or the drive belt in the 2014 Toyota Tacoma. In the engine, the serpentine belt which activates and connects to every pulley is the most popular used recently. As the serpentine belts easily incorporate the automatic tensioner of belt, they do not require any tension adjustments. This kind of tensioner uses correct amount of tension into the belt. And it also uses an internal pre-set spring. Some imports and most older vehicles may be using the combination of serpentine belts and V-belts in offset pulleys controlled by crankshaft pulley. In the most cases, on 2014 Toyota Tacoma, there is belt tensioner that allows the proper tension to easily be adjusted.
1.Begin with opening the hood and locating drive belt system. Various kinds of vehicles use the different ways to adjust a belt tension adjustment mechanism and drive belts can be located in various areas.
2.Do what is needed to approach them and determine where tensioners are located on the individual belts. For example, lift 2014 Toyota Tacoma, remove the splash shield and tire(use the impact gun, car lift and a socket for wheel) or locate vehicle’s upper tensioner and determine which tool you should adjust the tension.
3.If 333 is set up with this type of design, you should loosen slotted alternator bracket. But some other older vehicles will allow you to loosen their bolts on the alternator, involving the bracket-retaining bolt. The alternator will allow to be moved forth and back. To loosen the tension or remove the belt, alternator would cock in the position to ease the tension. Because the amount of tension is tightened, the alternator can be pried against the pulleys. On the drive belt, the alternator will be tightened down to increase vehicle’s tension.
4.Located adjusters with the adjuster bolts locates on or near the alternator. For 2014 Toyota Tacoma which still use manual belt tensioner, it is a more common setting.It is counterclockwise to loosen by a single bolt. The pulley will wobble to remove belt as long as the bolt is loosened enough because the belt is removed and the pulley will be loosened. To adjust vehicle’s tension, until the most proper tension is got, clockwise turn the bolt to apply tension on the belt.
5.On the belts, to test the proper tension. A typical rule of thumb for the right tightness is able to twist the belt with a finger and thumb a 1/2 turn. And it feels resistance. On the belt, you don’t have enough the tension if you can turn more than 1/2 turn. If you cannot do that, you will have too much tension.
6.Instead of the components, put 2014 Toyota Tacoma back together to access belt tensioners. In order to test and operate 2014 Toyota Tacoma for several minutes. And then shut it off. In addition to touch the belt with your hands to see and check for the proper tension if the belt is not hot.
In the end, I hope this way can help you solve your problems in 2014 Toyota Tacoma

 

got dizzy lookin at that.............

 

Me too! Drink a few beers and take a second look. It helps.

 

3 year, 36k mile warranty. Why not take it to the dealer?

 

Not sure if that would fall under warranty or not?

 

Bumper to bumper. When did you take delivery?

 

I'm going to check. Not sure if the belt is considered a "wear" item.

 

If they won't, start with replacing the belt: 90916A2001
Then move on to the tensioner, if necessary: 1662031013
Neither thing should need replacing at your year and mileage.

 

Thanks. I am the 2nd owner of the truck and in looking at it, it was first registered in January of 2015, so I would be out of the bumper to bumper warranty anyways.

 

You know, don't assume it's a tension or belt problem either. Have you checked the tension? If it's decently tight, then you might have a bad bearing on an idler pulley, air conditioner, alternator, water pump,or power steering pump that is making the belt slip because it has so much friction....

Of course, if it's THAT bad, it won't last too long before completely seizing up...

 

Yea, the belt seems pretty tight. And a lot of the threads I read on here speak to the belt squeaking at first start or when its cold, then many of the guys says the noise goes away. However, with mine, the noise is there on startup and continues as I drive.