How an automatic belt tensioner works "how the check"

In this video I'll explain to you how an automatic belt tensioner works and how to check if your automatic belt tensioner has failed. And how to check the automatic belt tensioner pulley. #FlatRateMechanic Check out The Flat Rate Mechanics Tool Store on Amazon goo.gl/M8MpdC  
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Disclaimer:
Due to factors beyond the control of The Flat Rate Mechanic, it cannot guarantee against unauthorized modifications of this information or improper use of this information. The Flat Rate Mechanic assumes no liability for property damage or injury incurred as a result of any of the information contained in this automotive repair video. The Flat Rate Mechanic recommends safe practices when working on cars or trucks with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this repair video. Due to factors beyond the control of The Flat Rate Mechanic, no information contained in this automotive repair video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained.

[@Standard_Logic]

Good video! And straight to the point. Thanks!

[@TheGarnetObsidian]

Thank you for this excellent video!

[@twigsfloat2773]

Super helpful. Good job!

[@davidmstanley1956]

Thank you very much for the info you are a good man!

[@FlatRateMechanic]

Awesome, glad video helped out!

[@j777barbasiewicz]

Clear.Thanks.

[@Joseph-sq3zu]

Thank you just trying to understand this part

[@Catholic1391]

I just bought a mechman alternator which has a smaller pulley, so I had to buy a smaller belt my belt barely went on. I am wondering if the tensioner is too tight and will it hurts anything.

[@johnydub7346]

Is that normal when shake but no noise

[@davidbryant5875]

Got to change mine today. Making my belt vibrate.. sounds like it was my exhaust vibrating took it to a shop said it was my tensioner making everything vibrate.

[@fawzisdudah8511]

I subbed only when you showed the side view of the tensioner and how it rotates.

[@axelacuna-garcia5423]

Is it normal for it to shake bit not make a noise I put a new one and it shakes like crazy

[@devrynrick1530]

Same problem my belt keeps ripping

[@axelacuna-garcia5423]

I put a different one and idk why it was wobbling and it's been a year already

[@GetRealBaby]

I'm guessing but I think your belt is either too short or too long. Take the belt and carefully twist it while it's on the pullies. 1) If it twists more than half way (possibly completely over so that you can easily see the ribs) your belt is too loose. 2) If it only twists about 1/4 of the way over, it's a perfect fit. 3) If it's really hard to twist to the 1/4 way over, then your belt is probably too tight, too short. Hope this helps. Good luck.

[@GetRealBaby]

@@devrynrick1530 One of your pullies is siezing up and not turning as it should, or your belt is too short. That's my guess.

[@arriagacookie]

Can a tensioner go bad for chenging the belt so often( about 3 times in 2 months)? I have to replace an alternator I fix a leaking in the VTEC I replace the serpentine belt now my mechanic is telling me every time we tensión it goes bad and now needs to be replaced? Is that true.?

[@FlatRateMechanic]

Sound a bit strange to me. There must be some kind of underlying problem or something not being disclosed. You should be able to remove and install a belt an unlimited amount of time without causing any damage to the tensioner unless the mechanic is doing something wrong and or forcing things. But very had to say with out inspecting the items. But not the tensioner should not be damaged no matter how many times you have to remove the belt unless it was damaged prior.

[@cakesnipher7024]

Two years too late Ditch that mechanic for life!

[@jameswaugh115]

Mine has a strut attached to it😮

[@Elvisrivers1]

I can't move tensioner arm without long pipe as leverage between pullies..I think it is sticking internally. Anybody?

[@GetRealBaby]

What are the symptoms?

[@lostbooks2918]

Mine is stuck. Idk what to do 2006 TSX

[@GetRealBaby]

You replaced it, right?

[@dtaylor224]

Mine be bouncing and it’s new😮

[@GetRealBaby]

I'm guessing but I think you may have a belt that's too short or too long.

[@dtaylor224]

@@GetRealBaby what is the correct size?

[@GetRealBaby]

@@dtaylor224 If you call your local auto parts store such as AutoZone, Advance Auto or O-Reilly Auto Parts and give them your vehicle's VIN, they can tell you the exact part you need. Ask what size belt you need. And then I would call another parts store, give them your VIN, and compare the sizes you're quoted. If these quotes aren't the same size, you should call the dealership and ask their parts' department the same questions you asked the parts stores. When you get two quotes the same, that should be the belt you go with.

[@GetRealBaby]

@@dtaylor224 Jot down your VIN and call the dealership parts department and ask what size. Then call the place where you bought the belt, ask for the size of the belt you bought, and check to see if both sizes match. I'm guessing they won't.

[@adarichards2743]

You only showed how it operates, not how it works.

[@GetRealBaby]

What? A tensioner works just as this video explains...it puts tension on the belt.

[@GetRealBaby]

This was very helpful because the new tensioner I bought from AutoZone has the exact same black plastic TAB that you have in this video, and I didn't/don't know what it's for nor what the heck it is. But I see that that TAB is nothing I have to worry about, because you moved your tensioner pully with no problem, which must mean the TAB is unimportant to the workings of the tensioner...right? Thanks for this video. It answered a question that AutoZone workers couldn't answer. They have no idea what this TAB is or what it does. I don't either, but, as I mentioned, it seems unimportant to the proper workings of the tensioner. BTW, what is this TAB? What does it do and why is it sticking out of the tensioner? Thanks again!

[@FlatRateMechanic]

Hey, I'm glad you found the video helpful! That TAB can be a real head-scratcher, but as long as your tensioner is doing its job, it's all good. Keep rocking those car repairs!

[@GetRealBaby]

@@FlatRateMechanic Funny comment to me cuz my mechanic is the one who has to keep rocking car repairs...I'm too old and lazy to mess with mechanics anymore. I let the pros do the messing.